How to set CMOS for mining machine
Publish: 2021-04-18 02:56:50
1. Recently, the price of bitcoin has been rising. Last week, the single price of bitcoin broke through the RMB 20000 mark. Compared with speculation, what is more exciting is self-sufficient mining. The assembly of mining machine has become the focus of attention
in order to cater to the current mining boom, major manufacturers have released corresponding mining motherboards to seize the market. What can be inserted into the magic board of 13 graphics cards, super stable power supply and so on. It's easy to ignore the BIOS on the motherboard while configuring the heap. Although the current mining has experienced several years of training, but at present, when we assemble the mining machine, we still need to toss BIOS, in order to use the multi card to improve the performance of mining. For most mine friends, it is a great test to brush BIOS. If the brush is broken, the whole board will be scrapped. The major manufacturers in improving the corresponding configuration at the same time, but rarely invest too much research and development in BIOS. The reason is that the BIOS of mining machinery is difficult to develop, the research and development time is too long, and the cost recovery is slow. Therefore, compared with the BIOS of special mining machine, it is better to improve the profit of motherboard configuration
there are many mining motherboards on the market, but there are few motherboards with BIOS specially set for mining. Recently, Meijie has developed a special intelligent BIOS for the newly upgraded professional mining motherboard sy-b85-btc. The BIOS of this motherboard can intelligently identify 6 graphics cards. Save all mine friends time, plug and play, convenient and fast, mining no longer wait. We all know that AMD's mining graphics cards have been sold crazy recently, and NVIDIA can't sit there any more. It is reported that NVIDIA will launch a professional mine card gtx1060, which has no display output interface. Meijie, with foresight, has set up integrated display output for mining BIOS by default. After that, NVIDIA's gtx1060 can be perfectly adapted, more than enough
Meijie sy-b85-btc is based on the scheme design verified by mining instry for many years, and also continues the characteristics of Meijie's high efficiency and low price mine board. As an ATX board, Meijie is equipped with 7-phase luxury power supply, all solid black gold capacitor and PCI-E stabilized capacitor design, to ensure stable and safe mining< The sy-b85-btc adopts B85 chip design, supports the fourth and fifth generation CPU of lga1150 interface, and supports lga115x and LGA775 radiator. It is convenient for miner to upgrade the motherboard and use the old CPU and radiator at the same time. Of course, six PCI-E slots are essential for the motherboard specially designed for mining. Three of them are pci-ex16 slots and three are pci-ex1 slots, which can support up to 6 cards mining. Meijie sy-b85-btc also supports 7 * 24-hour all-weather mining, lightning protection, over-current protection, over-voltage protection, high temperature protection, etc. Such a sharp artifact, how can you not let mining friends heart?
in order to cater to the current mining boom, major manufacturers have released corresponding mining motherboards to seize the market. What can be inserted into the magic board of 13 graphics cards, super stable power supply and so on. It's easy to ignore the BIOS on the motherboard while configuring the heap. Although the current mining has experienced several years of training, but at present, when we assemble the mining machine, we still need to toss BIOS, in order to use the multi card to improve the performance of mining. For most mine friends, it is a great test to brush BIOS. If the brush is broken, the whole board will be scrapped. The major manufacturers in improving the corresponding configuration at the same time, but rarely invest too much research and development in BIOS. The reason is that the BIOS of mining machinery is difficult to develop, the research and development time is too long, and the cost recovery is slow. Therefore, compared with the BIOS of special mining machine, it is better to improve the profit of motherboard configuration
there are many mining motherboards on the market, but there are few motherboards with BIOS specially set for mining. Recently, Meijie has developed a special intelligent BIOS for the newly upgraded professional mining motherboard sy-b85-btc. The BIOS of this motherboard can intelligently identify 6 graphics cards. Save all mine friends time, plug and play, convenient and fast, mining no longer wait. We all know that AMD's mining graphics cards have been sold crazy recently, and NVIDIA can't sit there any more. It is reported that NVIDIA will launch a professional mine card gtx1060, which has no display output interface. Meijie, with foresight, has set up integrated display output for mining BIOS by default. After that, NVIDIA's gtx1060 can be perfectly adapted, more than enough
Meijie sy-b85-btc is based on the scheme design verified by mining instry for many years, and also continues the characteristics of Meijie's high efficiency and low price mine board. As an ATX board, Meijie is equipped with 7-phase luxury power supply, all solid black gold capacitor and PCI-E stabilized capacitor design, to ensure stable and safe mining< The sy-b85-btc adopts B85 chip design, supports the fourth and fifth generation CPU of lga1150 interface, and supports lga115x and LGA775 radiator. It is convenient for miner to upgrade the motherboard and use the old CPU and radiator at the same time. Of course, six PCI-E slots are essential for the motherboard specially designed for mining. Three of them are pci-ex16 slots and three are pci-ex1 slots, which can support up to 6 cards mining. Meijie sy-b85-btc also supports 7 * 24-hour all-weather mining, lightning protection, over-current protection, over-voltage protection, high temperature protection, etc. Such a sharp artifact, how can you not let mining friends heart?
2. Sometimes some computer faults are caused by the problem of the main board. I once met a time when the computer couldn't enter Windows 98, and the screen showed that there was a problem with the setting of the main board. After entering the main board for some setting, the computer quickly returned to normal. Therefore, it is said that CMOS will be set, which is of great benefit to us in troubleshooting the computer
how to enter CMOS settings? When power on, there is a prompt on the screen, which means "press del key to enter CMOS settings"
we press del key on the keyboard at this time. Now you can see the interface of CMOS setting
different computers may have different interfaces, but the common ones are award, AMI, Phoenix, etc. Although the interface forms are different, the functions are basically the same, and the items to be set are almost the same. This is award's CMOS setup screen, which is the most common one. In fact, as long as you understand a CMOS setting method, others can be learned by analogy
there are many parameters to be set at the bottom of the main interface. Most of the projects have already set the correct parameter values, or many options have little impact on the operation of the computer, so generally we only need to pay attention to a few key items
usually, when I set CMOS, I just do the following steps:
1, set factory settings
2, detect hard disk parameters
3, set floppy drive
4, set startup sequence
5, set password if necessary
1, set factory settings
as you can see, the term "load setup defaults" means "transfer in factory set value". In fact, it is a recommended setting, that is, an optimized setting under normal circumstances
move the cursor to this item with up and down arrows, and then press enter. The screen will prompt "load default value"
we enter "Y" to mean "yes", so that the above dozens of settings are the default values
if your computer appears abnormal under this setting, you can use the other "load BIOS Setup" to restore the BIOS default value. It is the most basic and safe setting. There will be no setting problems under this setting, but it is possible that the computer performance will not be brought into full play< Second, automatic detection of hard disk
move the cursor to this item, press enter, and the computer will automatically detect the hard disk. This is the hard disk parameter detected by the computer
this is the main hard disk detected by the computer. It can be set in three ways: if your hard disk is 6.4g, you can only use 528m in normal mode; Select large mode, only 2.1GB can be used; In practice, we all choose LBA mode. Select "Y", which is the recommended option for computers
you see, the main hard disk parameters are set. Because this computer has only one hard disk, we will press ESC to cancel the detection
this computer can be connected to four IDE devices. In short, it can be connected to four hard disks. Usually, we only have one hard disk, which is usually set to the first one, and the others are omitted
If I have two hard disks, then I can set them up like this
after setting the hard disk, we first press the ESC key to exit the hard disk detection item. You see, back to the main setting screen< Third, set the floppy drive
move the cursor to the first standard CMOS setup and press enter
this is the date and time. Now we can adjust them
this is the case of hard disk. The parameters of hard disk we detected just now can be seen here. At this time, there is only one hard disk, 4335m. Sometimes when we install multiple hard disks, if we want to remove one hard disk, we have to operate here. Move the cursor here, and then press page up to select none
this is the floppy drive setting. You see, this computer has only one 1.44M floppy drive. We will move the cursor to this item and press the "page up" and "page down" keys to change it. You see, this is "1.44M, 3.5in."
then press ESC to exit< In fact, after setting the hard disk and floppy drive, the computer can work normally. But usually, we have to consider whether to start from disk a or disk C
move the cursor to the second item "BIOS feature setup" and press enter
this boot sequence refers to the boot sequence of the computer
if it is set to C, a, that is to start with the hard disk first, that is, when the computer starts, it reads the system information from the boot area of the hard disk and makes the computer start to work. At this time, whether the system disk is inserted into disk a or not, the computer will ignore it and only start from disk C. It's just like what you just said
if it is set to a or C, the computer will first check whether the system disk is inserted into the a drive. If it is inserted, the computer will read the DOS system information from the floppy disk and start the computer
if we are not inserting the system disk, the computer will prompt an error and let us insert the correct system disk; If the computer finds that there is no floppy disk inserted in disk a, the computer starts from disk C
the setting starts from disk a first, which will play a role when we install software for a new computer
for example, to install software on a new hard disk, if the operating system has not been installed on the hard disk, the computer from disk C cannot be started. Even if the system floppy disk is inserted in drive a, if the computer does not read disk a, it is useless. At this time, it will be set to boot from disk a
also, sometimes there is a virus on the hard disk, we need to kill the virus, or to check the virus, sometimes we need to boot from disk a
it is very important to save a system disk that is absolutely virus-free, and it must be write protected. After we install the operating system, we start it from disk C instead, which can speed up the startup speed
now we set it to "a, C" startup mode
fifthly, set the power on password
there are two places to set the password in CMOS. One is senior user password, the other is general user password
when the computer starts, it will ask for a password and answer one of the passwords to start the computer; If you want to enter CMOS settings, you need an advanced user password
the computer regards CMOS settings as highly confidential to prevent others from changing them. The authority of advanced password is higher than that of user password in CMOS settings
to put it simply, if both passwords are set, advanced password can be used to enter the working state and CMOS setting, while user password can only enter the working state and can also enter the CMOS to modify the user's own password, but other settings cannot be made to CMOS. If only one password is set, no matter who it is, they all have these two permissions at the same time
move the cursor to the password setting, press enter, enter the password, and then press enter. The computer prompts you to re-enter the password to confirm, and then press enter; If you want to cancel the password you have set, you can enter directly when you are prompted to enter the password. The computer prompts you to cancel the password. Please press any key, and the password will be cancelled after pressing the key
pay special attention to remember the password once it is set. If you set the power on password for the computer and forget it, you will not be able to use the computer to work, which will delay things
if you really forget the password and can't start the computer, for experts, you can remove the computer host and then discharge the CMOS, so that the computer can forget the password. But you need to find someone who is very familiar with the computer hardware, and you need to refer to the motherboard manual to do it. Moreover, when CMOS forgets the password, it also forgets all the set values, All settings must be reset. Better remember the code
sixth, save the settings and exit
the most critical step is to save all the information just set. Select "save & exit setup", which means save and exit
if you don't want to save the settings just now and just want to come in and have a look, select "exit with out saving". It means to exit without saving, so any changes made in this CMOS entry will not work
here, we choose to save and exit, press enter, the computer prompts us to confirm, and we can enter "Y"
restart the computer so that the setup is complete
in this way, the computer can work normally. If there is no special case, the general CMOS settings need not be changed.
how to enter CMOS settings? When power on, there is a prompt on the screen, which means "press del key to enter CMOS settings"
we press del key on the keyboard at this time. Now you can see the interface of CMOS setting
different computers may have different interfaces, but the common ones are award, AMI, Phoenix, etc. Although the interface forms are different, the functions are basically the same, and the items to be set are almost the same. This is award's CMOS setup screen, which is the most common one. In fact, as long as you understand a CMOS setting method, others can be learned by analogy
there are many parameters to be set at the bottom of the main interface. Most of the projects have already set the correct parameter values, or many options have little impact on the operation of the computer, so generally we only need to pay attention to a few key items
usually, when I set CMOS, I just do the following steps:
1, set factory settings
2, detect hard disk parameters
3, set floppy drive
4, set startup sequence
5, set password if necessary
1, set factory settings
as you can see, the term "load setup defaults" means "transfer in factory set value". In fact, it is a recommended setting, that is, an optimized setting under normal circumstances
move the cursor to this item with up and down arrows, and then press enter. The screen will prompt "load default value"
we enter "Y" to mean "yes", so that the above dozens of settings are the default values
if your computer appears abnormal under this setting, you can use the other "load BIOS Setup" to restore the BIOS default value. It is the most basic and safe setting. There will be no setting problems under this setting, but it is possible that the computer performance will not be brought into full play< Second, automatic detection of hard disk
move the cursor to this item, press enter, and the computer will automatically detect the hard disk. This is the hard disk parameter detected by the computer
this is the main hard disk detected by the computer. It can be set in three ways: if your hard disk is 6.4g, you can only use 528m in normal mode; Select large mode, only 2.1GB can be used; In practice, we all choose LBA mode. Select "Y", which is the recommended option for computers
you see, the main hard disk parameters are set. Because this computer has only one hard disk, we will press ESC to cancel the detection
this computer can be connected to four IDE devices. In short, it can be connected to four hard disks. Usually, we only have one hard disk, which is usually set to the first one, and the others are omitted
If I have two hard disks, then I can set them up like this
after setting the hard disk, we first press the ESC key to exit the hard disk detection item. You see, back to the main setting screen< Third, set the floppy drive
move the cursor to the first standard CMOS setup and press enter
this is the date and time. Now we can adjust them
this is the case of hard disk. The parameters of hard disk we detected just now can be seen here. At this time, there is only one hard disk, 4335m. Sometimes when we install multiple hard disks, if we want to remove one hard disk, we have to operate here. Move the cursor here, and then press page up to select none
this is the floppy drive setting. You see, this computer has only one 1.44M floppy drive. We will move the cursor to this item and press the "page up" and "page down" keys to change it. You see, this is "1.44M, 3.5in."
then press ESC to exit< In fact, after setting the hard disk and floppy drive, the computer can work normally. But usually, we have to consider whether to start from disk a or disk C
move the cursor to the second item "BIOS feature setup" and press enter
this boot sequence refers to the boot sequence of the computer
if it is set to C, a, that is to start with the hard disk first, that is, when the computer starts, it reads the system information from the boot area of the hard disk and makes the computer start to work. At this time, whether the system disk is inserted into disk a or not, the computer will ignore it and only start from disk C. It's just like what you just said
if it is set to a or C, the computer will first check whether the system disk is inserted into the a drive. If it is inserted, the computer will read the DOS system information from the floppy disk and start the computer
if we are not inserting the system disk, the computer will prompt an error and let us insert the correct system disk; If the computer finds that there is no floppy disk inserted in disk a, the computer starts from disk C
the setting starts from disk a first, which will play a role when we install software for a new computer
for example, to install software on a new hard disk, if the operating system has not been installed on the hard disk, the computer from disk C cannot be started. Even if the system floppy disk is inserted in drive a, if the computer does not read disk a, it is useless. At this time, it will be set to boot from disk a
also, sometimes there is a virus on the hard disk, we need to kill the virus, or to check the virus, sometimes we need to boot from disk a
it is very important to save a system disk that is absolutely virus-free, and it must be write protected. After we install the operating system, we start it from disk C instead, which can speed up the startup speed
now we set it to "a, C" startup mode
fifthly, set the power on password
there are two places to set the password in CMOS. One is senior user password, the other is general user password
when the computer starts, it will ask for a password and answer one of the passwords to start the computer; If you want to enter CMOS settings, you need an advanced user password
the computer regards CMOS settings as highly confidential to prevent others from changing them. The authority of advanced password is higher than that of user password in CMOS settings
to put it simply, if both passwords are set, advanced password can be used to enter the working state and CMOS setting, while user password can only enter the working state and can also enter the CMOS to modify the user's own password, but other settings cannot be made to CMOS. If only one password is set, no matter who it is, they all have these two permissions at the same time
move the cursor to the password setting, press enter, enter the password, and then press enter. The computer prompts you to re-enter the password to confirm, and then press enter; If you want to cancel the password you have set, you can enter directly when you are prompted to enter the password. The computer prompts you to cancel the password. Please press any key, and the password will be cancelled after pressing the key
pay special attention to remember the password once it is set. If you set the power on password for the computer and forget it, you will not be able to use the computer to work, which will delay things
if you really forget the password and can't start the computer, for experts, you can remove the computer host and then discharge the CMOS, so that the computer can forget the password. But you need to find someone who is very familiar with the computer hardware, and you need to refer to the motherboard manual to do it. Moreover, when CMOS forgets the password, it also forgets all the set values, All settings must be reset. Better remember the code
sixth, save the settings and exit
the most critical step is to save all the information just set. Select "save & exit setup", which means save and exit
if you don't want to save the settings just now and just want to come in and have a look, select "exit with out saving". It means to exit without saving, so any changes made in this CMOS entry will not work
here, we choose to save and exit, press enter, the computer prompts us to confirm, and we can enter "Y"
restart the computer so that the setup is complete
in this way, the computer can work normally. If there is no special case, the general CMOS settings need not be changed.
3. CMOS settings
CMOS stores a large amount of data of computer hardware configuration and settings, which is a prerequisite for the normal start-up and work of the computer. If these data are lost or set improperly, it will not work normally in the light, and it will not start and work in the heavy. Therefore, the correct setting and protection of COMS data is very important for the safe use of the computer
because a CMOS setup program is often only applicable to one or several types of motherboards, and even the same motherboard may have different configurations, readers should learn to use it flexibly and adjust measures to local conditions. General motherboard manual has a more detailed description of CMOS (BIOS) settings. As long as you read carefully, digest one by one, and complete the settings one by one, you can finally complete all the settings and make the system run normally and efficiently. Here are some common parameters that are difficult to set< The setting method of integrated peripheral ports on the motherboard
some peripheral ports are integrated on the current PC motherboard, and the award BIOS setting program is taken as an example for a brief introction
the settings of integrated ports on old motherboards are generally scattered in "standard COMS setup", "BIOS Fatures setup (or advanced CMOS setup)" and "chipset features setup (or advanced chipset setup)". The option of "integrated peripherals" is added in BIOS of motherboards above Pentium level to set the integrated ports on the board. Common options are as follows:
} onboard FDD controller floppy disk drive interface
} onboard PCI ide enable PCI IDE interface
the above two items are respectively used to set the use status of floppy drive controller and IDE controller on the motherboard, and the setting value can be enabled or disabled. When the floppy drive is connected to the floppy drive interface on the motherboard or the IDE interface of the hard disk and optical drive on the motherboard, it should be set to enabled; If you do not use the floppy disk drive interface on the motherboard and want to use the interface on the multi-function card, this item should be set to disabled. If the machine fails and there is a problem with the interface circuit on the motherboard, you can set this item to disabled, and then add a multi-function card to have a try
ide hdd block mode hard disk (data) block transmission mode
this item refers to the transmission of the data of the set number of sectors at one time ring each interrupt, so as to improve the speed of accessing the hard disk. Only when the configured hard disk supports block mode, can it be set to block mode. Otherwise, it should be forbidden to work in this mode to avoid hard disk access errors. The setting value of this parameter is different in different BIOS versions, generally auto / optimal / disabled. When auto is selected, the number of sectors for data transmission will be the reported value of the hard disk automatic detection function; If optimal is selected, the best default setting is the number of sectors; If disabled is selected, this mode will not work. The selected values in some BIOS versions give the number of sectors to be transmitted each time. For example, the BIOS settings of ASUS p2l97agp motherboard include: HDD max, disabled, 2, 4, 8, 16 and 32. The number in them indicates the number of sectors that can be set. It depends on the configuration of the machine. If the hard disk does not give specific instructions, you may as well try several times to find out the appropriate setting value. For some hard disk procts, although the working speed is faster when set to block transfer mode, it may have problems when cooperating with some software or hardware. At this time, it can only be set to disabled
ide PIO mode the parallel input and output mode of IDE hard disk interface
PIO (programmed input / output??)?? Programmable input and output (PIO) is a series of host transmission standards formulated by sffc (small form factor Committee). They are PIO mode 1, PIO mode 2, PIO mode 3, PIO mode 4 and PIO mode 5. The data transmission rate of each standard is different. When setting, pay attention to the PIO mode supported by the hard disk itself in order to work normally. For example, a hard disk itself only supports PIO mode 3 (data transfer rate is 11.1mbps), but it is set to PIO mode 4 (data transfer rate is 16.6mbps) in the CMOS parameters, resulting in frequent errors and frequent crash. After reset to PIO mode 3, it will return to normal operation
in the BIOS Setup program, this item can be set to 0, 1, 2, 3, 4 and auto. If you don't know the performance parameters of the hard disk, you can set it to auto first, and then make further adjustments according to the actual situation< This item is used to set the I / O port address and interrupt channel number of the serial port (i.e. COM port). At present, computers above Pentium level generally have two serial ports, which need to be set separately. This item has automatic setting. Because this item belongs to system resource allocation and has little to do with equipment performance, it is better to set it automatically by the system to avoid conflict
for manual setting, port 1 should be set to 3F8 / irq4 (the former is the I / O port address, the latter is the interrupt number), that is, COM1 port, and port 2 should be set to 2f8 / irq3, that is, com2 port. If you want to configure the built-in modem (mode card), set the corresponding serial port on the motherboard to disabled, and leave the resources to the mode card< The most common setting is the first parallel port when it is set to 378 / irq7. It should be noted that when this setting is changed, it may conflict with the sound card. For example, when it is set to 278 / irq5, it may conflict with some commonly used sound cards< The working mode of parallel port on motherboard can be set as standard mode (i.e. noraml or spp mode), EPP Mode, ECP mode and EPP + ECP mode
EPP (enhanced parallel port) is a parallel interface standard developed by Intel, Xircom, zenith and some other companies, which aims at two-way communication between external devices. Many laptops proced since 1991 are equipped with EPP ports< ECP (extended capabilities port) is a parallel interface standard developed by Microsoft and Hewlett Packard. It has the same high speed and two-way communication ability as EPP. In the multi task environment, it can use DMA (direct memory access) and needs little buffer, so it can provide more stable performance
the ECP / EPP port can support a rate of 300KB / sec. In 1993, both EPP and ECP specifications were included in IEEE 1284 standard. If the computer is equipped with ECP or EPP parallel port, it can reach about one-third of the 10 MB Ethernet speed when connected with DCC (direct cable connection) network
the specific setting value of this item depends on the specific peripherals connected. Only when the main board and the peripherals connected support EPP or ECP can it be set to EPP or ECP mode, otherwise an error will occur. For example, when an inkjet printer is connected to the parallel port on the motherboard, it often makes mistakes when it is set to EPP or ECP mode. After it is changed to normal mode, it works normally. The reason is that the printer does not support EPP and ECP< USB controller
USB (Universal Serial Bus) is a new generation of interface standard jointly launched by Compaq, Dec, IBM, Intel, Microsoft, NEC and NT. The motherboard with Intel 82430vx and HX and later chipsets can support USB specification, but at present, most users do not use USB devices, so this item should be set to disabled
2. PNP / PCI parameter setting method
different motherboards use different chipsets, so the setting of PCI parameters is very different. The following describes the commonly used parameter setting
PCI slot IRQ set PCI slot interrupt request number
this item can be set automatically or manually. Manual setting can be selected according to the values given in the motherboard manual, but attention should be paid to avoid conflicts. Generally, automatic setting is optional
set PCI IDE interface interrupt request number
set PCI connected ide interrupt request number. For example, PCI primary IDE (main ide interrupt number), PCI secondary IDE (secondary ide interrupt number). Automatic setting and manual setting are allowed. Generally, automatic setting is optional< PCI ide trigger type or PCI IRQ active by setting PCI ide trigger mode
this setting is the setting of PCI bus interrupt control signal sampling mode, generally there are two options: edge (pulse edge trigger) and level (level trigger). The specific method can be determined according to the special requirements of PCI card. In general, if PCI card has no special requirements, this item can be set to level, that is, level control mode< This item is used to set the allocation method of system resources. You can choose auto or manual. When auto mode is selected, both IRQ and DMA channels are automatically detected and allocated by BIOS. When manual mode is selected, IRQ and DMA channels are set by users. Generally speaking, this item can be set to auto mode
this item is actually about how to "share" resources. In the design of PCI motherboard, PCI card is often used to enjoy some interrupt resources in the computer. But in fact, there are still many plug-in cards using ISA bus. In order to enable the original ISA bus slot to use the interrupt resources, the BIOS settings add settings such as legacy isa to the PCI bus available interrupt, so that the interrupt resources can be used by ISA bus perfectly. If there is an interrupt conflict when installing an ISA sound card or decompression card in the computer, you can set the available bus interrupt to legacy isa or Na state and try again. Some BIOS programs (such as ASUS t2p4) intuitively use "slot x IRQ" to set the interrupt channel associated with PCI slot X. when it is set to an interrupt number, it means that the interrupt is used by the PCI slot. When it is set to Na, it means that the PCI slot is idle. Of course, it will not occupy the interrupt channel. When it is set to auto, the BIOS will assign the interrupt channel number automatically. In the specific setting, the unused PCI slot should be set to Na, and the slot to be used can be set to auto< In general, this item should be set to pci-atuo. It is important to insert a non PCI IDE (hard disk) card into the motherboard, because if it is not set correctly, the card or the system may not work properly. When a non PCI ide multi-function card is inserted into the motherboard, this item can be set to isa or map to Isa< These two items are used to set the interrupt priority of two IDE interfaces. The priority of a is higher than that of B. Generally, a is selected for primary IDE (IDE 1) and B is selected for secondary IDE (IDE 2)
IRQ XX used by ISA (irq-x assigned to)
this item is used to set whether an IRQ channel is only assigned to ISA bus, XX is 3 to 15. The optional values are no / ICU and yes. In essence, this item is to manually allocate IRQ resources occupied by PCI and ISA bus. Unless it is confirmed that an ISA card uses IRQ x, no / ICU should be selected to automatically allocate IRQ resources to PCI and isa cards< br /> ◇DMA x USED BY ISA (DMA－X ASSIGNED TO )
CMOS stores a large amount of data of computer hardware configuration and settings, which is a prerequisite for the normal start-up and work of the computer. If these data are lost or set improperly, it will not work normally in the light, and it will not start and work in the heavy. Therefore, the correct setting and protection of COMS data is very important for the safe use of the computer
because a CMOS setup program is often only applicable to one or several types of motherboards, and even the same motherboard may have different configurations, readers should learn to use it flexibly and adjust measures to local conditions. General motherboard manual has a more detailed description of CMOS (BIOS) settings. As long as you read carefully, digest one by one, and complete the settings one by one, you can finally complete all the settings and make the system run normally and efficiently. Here are some common parameters that are difficult to set< The setting method of integrated peripheral ports on the motherboard
some peripheral ports are integrated on the current PC motherboard, and the award BIOS setting program is taken as an example for a brief introction
the settings of integrated ports on old motherboards are generally scattered in "standard COMS setup", "BIOS Fatures setup (or advanced CMOS setup)" and "chipset features setup (or advanced chipset setup)". The option of "integrated peripherals" is added in BIOS of motherboards above Pentium level to set the integrated ports on the board. Common options are as follows:
} onboard FDD controller floppy disk drive interface
} onboard PCI ide enable PCI IDE interface
the above two items are respectively used to set the use status of floppy drive controller and IDE controller on the motherboard, and the setting value can be enabled or disabled. When the floppy drive is connected to the floppy drive interface on the motherboard or the IDE interface of the hard disk and optical drive on the motherboard, it should be set to enabled; If you do not use the floppy disk drive interface on the motherboard and want to use the interface on the multi-function card, this item should be set to disabled. If the machine fails and there is a problem with the interface circuit on the motherboard, you can set this item to disabled, and then add a multi-function card to have a try
ide hdd block mode hard disk (data) block transmission mode
this item refers to the transmission of the data of the set number of sectors at one time ring each interrupt, so as to improve the speed of accessing the hard disk. Only when the configured hard disk supports block mode, can it be set to block mode. Otherwise, it should be forbidden to work in this mode to avoid hard disk access errors. The setting value of this parameter is different in different BIOS versions, generally auto / optimal / disabled. When auto is selected, the number of sectors for data transmission will be the reported value of the hard disk automatic detection function; If optimal is selected, the best default setting is the number of sectors; If disabled is selected, this mode will not work. The selected values in some BIOS versions give the number of sectors to be transmitted each time. For example, the BIOS settings of ASUS p2l97agp motherboard include: HDD max, disabled, 2, 4, 8, 16 and 32. The number in them indicates the number of sectors that can be set. It depends on the configuration of the machine. If the hard disk does not give specific instructions, you may as well try several times to find out the appropriate setting value. For some hard disk procts, although the working speed is faster when set to block transfer mode, it may have problems when cooperating with some software or hardware. At this time, it can only be set to disabled
ide PIO mode the parallel input and output mode of IDE hard disk interface
PIO (programmed input / output??)?? Programmable input and output (PIO) is a series of host transmission standards formulated by sffc (small form factor Committee). They are PIO mode 1, PIO mode 2, PIO mode 3, PIO mode 4 and PIO mode 5. The data transmission rate of each standard is different. When setting, pay attention to the PIO mode supported by the hard disk itself in order to work normally. For example, a hard disk itself only supports PIO mode 3 (data transfer rate is 11.1mbps), but it is set to PIO mode 4 (data transfer rate is 16.6mbps) in the CMOS parameters, resulting in frequent errors and frequent crash. After reset to PIO mode 3, it will return to normal operation
in the BIOS Setup program, this item can be set to 0, 1, 2, 3, 4 and auto. If you don't know the performance parameters of the hard disk, you can set it to auto first, and then make further adjustments according to the actual situation< This item is used to set the I / O port address and interrupt channel number of the serial port (i.e. COM port). At present, computers above Pentium level generally have two serial ports, which need to be set separately. This item has automatic setting. Because this item belongs to system resource allocation and has little to do with equipment performance, it is better to set it automatically by the system to avoid conflict
for manual setting, port 1 should be set to 3F8 / irq4 (the former is the I / O port address, the latter is the interrupt number), that is, COM1 port, and port 2 should be set to 2f8 / irq3, that is, com2 port. If you want to configure the built-in modem (mode card), set the corresponding serial port on the motherboard to disabled, and leave the resources to the mode card< The most common setting is the first parallel port when it is set to 378 / irq7. It should be noted that when this setting is changed, it may conflict with the sound card. For example, when it is set to 278 / irq5, it may conflict with some commonly used sound cards< The working mode of parallel port on motherboard can be set as standard mode (i.e. noraml or spp mode), EPP Mode, ECP mode and EPP + ECP mode
EPP (enhanced parallel port) is a parallel interface standard developed by Intel, Xircom, zenith and some other companies, which aims at two-way communication between external devices. Many laptops proced since 1991 are equipped with EPP ports< ECP (extended capabilities port) is a parallel interface standard developed by Microsoft and Hewlett Packard. It has the same high speed and two-way communication ability as EPP. In the multi task environment, it can use DMA (direct memory access) and needs little buffer, so it can provide more stable performance
the ECP / EPP port can support a rate of 300KB / sec. In 1993, both EPP and ECP specifications were included in IEEE 1284 standard. If the computer is equipped with ECP or EPP parallel port, it can reach about one-third of the 10 MB Ethernet speed when connected with DCC (direct cable connection) network
the specific setting value of this item depends on the specific peripherals connected. Only when the main board and the peripherals connected support EPP or ECP can it be set to EPP or ECP mode, otherwise an error will occur. For example, when an inkjet printer is connected to the parallel port on the motherboard, it often makes mistakes when it is set to EPP or ECP mode. After it is changed to normal mode, it works normally. The reason is that the printer does not support EPP and ECP< USB controller
USB (Universal Serial Bus) is a new generation of interface standard jointly launched by Compaq, Dec, IBM, Intel, Microsoft, NEC and NT. The motherboard with Intel 82430vx and HX and later chipsets can support USB specification, but at present, most users do not use USB devices, so this item should be set to disabled
2. PNP / PCI parameter setting method
different motherboards use different chipsets, so the setting of PCI parameters is very different. The following describes the commonly used parameter setting
PCI slot IRQ set PCI slot interrupt request number
this item can be set automatically or manually. Manual setting can be selected according to the values given in the motherboard manual, but attention should be paid to avoid conflicts. Generally, automatic setting is optional
set PCI IDE interface interrupt request number
set PCI connected ide interrupt request number. For example, PCI primary IDE (main ide interrupt number), PCI secondary IDE (secondary ide interrupt number). Automatic setting and manual setting are allowed. Generally, automatic setting is optional< PCI ide trigger type or PCI IRQ active by setting PCI ide trigger mode
this setting is the setting of PCI bus interrupt control signal sampling mode, generally there are two options: edge (pulse edge trigger) and level (level trigger). The specific method can be determined according to the special requirements of PCI card. In general, if PCI card has no special requirements, this item can be set to level, that is, level control mode< This item is used to set the allocation method of system resources. You can choose auto or manual. When auto mode is selected, both IRQ and DMA channels are automatically detected and allocated by BIOS. When manual mode is selected, IRQ and DMA channels are set by users. Generally speaking, this item can be set to auto mode
this item is actually about how to "share" resources. In the design of PCI motherboard, PCI card is often used to enjoy some interrupt resources in the computer. But in fact, there are still many plug-in cards using ISA bus. In order to enable the original ISA bus slot to use the interrupt resources, the BIOS settings add settings such as legacy isa to the PCI bus available interrupt, so that the interrupt resources can be used by ISA bus perfectly. If there is an interrupt conflict when installing an ISA sound card or decompression card in the computer, you can set the available bus interrupt to legacy isa or Na state and try again. Some BIOS programs (such as ASUS t2p4) intuitively use "slot x IRQ" to set the interrupt channel associated with PCI slot X. when it is set to an interrupt number, it means that the interrupt is used by the PCI slot. When it is set to Na, it means that the PCI slot is idle. Of course, it will not occupy the interrupt channel. When it is set to auto, the BIOS will assign the interrupt channel number automatically. In the specific setting, the unused PCI slot should be set to Na, and the slot to be used can be set to auto< In general, this item should be set to pci-atuo. It is important to insert a non PCI IDE (hard disk) card into the motherboard, because if it is not set correctly, the card or the system may not work properly. When a non PCI ide multi-function card is inserted into the motherboard, this item can be set to isa or map to Isa< These two items are used to set the interrupt priority of two IDE interfaces. The priority of a is higher than that of B. Generally, a is selected for primary IDE (IDE 1) and B is selected for secondary IDE (IDE 2)
IRQ XX used by ISA (irq-x assigned to)
this item is used to set whether an IRQ channel is only assigned to ISA bus, XX is 3 to 15. The optional values are no / ICU and yes. In essence, this item is to manually allocate IRQ resources occupied by PCI and ISA bus. Unless it is confirmed that an ISA card uses IRQ x, no / ICU should be selected to automatically allocate IRQ resources to PCI and isa cards< br /> ◇DMA x USED BY ISA (DMA－X ASSIGNED TO )
4. BIOS common Chinese English table
time / system time / system time
date / system date
Level 2 cache secondary cache
system memory
video controller
panel type LCD model
audio controller
modem controller < br />Primary hard drive
molar bay
Service Tag
asset tag
BIOS version BIOS version
boot order / boot sequence
diskette drive
internal HDD built in hard disk drive
floppy device
hard disk drive
USB storage device USB storage device
CD / DVD / CD-RW drive
CD-ROM device drive
molar hard disk drive
CardBus NIC
onboard NIC On board network card
boot post
level of hardware check ring post: if it is set to "minimum" (the default setting), the post will be checked only when the BIOS is upgraded, the memory mole is changed or the previous post is not completed. Set to "though" to perform a full set of hardware checks ring post
config warnings
warning setting: this option is used to set whether to alarm when the system uses a lower voltage power adapter or other unsupported configuration. It is set to "disabled" to disable the alarm and "enabled" to enable the alarm
internal modem
built in modem: use this option to enable or disable the built-in modem. When disabled, the modem is not visible in the operating system
LAN controller
network controller: use this option to enable or disable PCI Ethernet controller. When disabled, the device is not visible in the operating system
PXE bis policy / PXE bis default policy
PXE bis policy: this option controls how the system handles (boot integrity services (BIS)) authorization requests when there is no authentication. The system can accept or reject the BIS request. When set to "reset", the BIS will be reinitialized and set to "deny" the next time the computer is started
onboard Bluetooth device
minipci device
minipci status: when installing Mini PCI device, you can use this option to enable or disable onboard PCI device
wireless control
wireless control: you can use this option to set the control mode of minipci and Bluetooth wireless devices. When it is set to "application", the wireless device can be enabled or disabled through "quickset" and other applications, but the hotkey is not available. When it is set to / application, the wireless device can be enabled or disabled through quickset and other applications or hotkeys. When "always off" is set, the wireless device is disabled and cannot be enabled in the * operating system
wireless
wireless devices: use this option to enable or disable wireless devices. This setting can be changed in the * operating system through the "quickset" or "" hotkey. Whether this setting is available depends on the wireless control settings
serial port: this option can reallocate the port address or disable the port to avoid device resource conflict
infrared data port. Use this setting to avoid device resource conflicts by reassigning port addresses or disabling ports
parallel mode
parallel mode. Control whether the parallel port of computer works in "normal" (at compatible) (common standard parallel port), "bi-directional" (PS / 2 compatible) (bidirectional mode, allowing two-way communication between host and peripherals) or "ECP" (extended capabilities ports) (default)
num lock
digital lock. Set whether the NumLock LED is on when the system starts up. Set "disable" to keep the digital light off, set "enable" to turn on the digital light when the system starts
keyboard NumLock: this option is used to set whether to Prompt Keyboard related error information when the system starts
enable keyboard
enable keypad: set to "by NumLock" to enable numeric keypad when NumLock light is on and no external keyboard is connected. Set to "only by key" to keep the embedded keyboard disabled when NumLock light is on
external hot key
external hot key: this setting can be used on the external PS / 2 keyboard in the same way as on the laptop. If you use ACPI * as a system, such as WIN2000 or WinXP, the USB keyboard cannot use the key. USB keyboard can only be used in DOS mode. Set to "scroll lock" (the default option) to enable the function, and set to "not installed" to disable the function<
USB simulation
USB emulation: with this option, you can use USB keyboard, USB mouse and USB floppy drive in the operating system that does not directly support USB. This setting is automatically enabled ring BIOS startup. After this function is enabled, the simulation will continue to be valid when the control is transferred to the * system. After the function is disabled, the simulation is turned off when the control is transferred to the * operating system
pointing device
pointing device: when set to "serial mouse", the external serial mouse is enabled and the integrated touch pad is disabled. When set to "PS / 2 mouse", if the PS / 2 mouse is connected externally, the integrated touch pad will be disabled. When set to "touch pad-ps / 2 mouse" (default setting), if PS / 2 mouse is connected, you can switch between mouse and touchpad. The changes take effect after the computer is restarted
video expansion
video expansion: use this option to enable or disable video expansion and adjust the lower resolution to a higher, normal LCD resolution<
battery status
battery status
power management
suspend mode
AC power recovery: this option can reflect the computer's response when the AC power adapter is plugged back into the system
low power mode: this option is used to set the power consumption when the system is dormant or shut down
brightness
brightness: this option can set the brightness of the display when the computer starts up. When the computer works in the state of power supply, the default setting is half. When the computer works in the power supply state of AC power adapter, the default setting is maximum
wake up on LAN
this option allows the computer to wake up from sleep when the network signal is connected. This setting is not valid for standby state. You can only wake up the standby mode in the * operating system. This setting is only valid when an AC power adapter is connected
auto on mod mode: note that if the AC adapter is not connected properly, the setting will not take effect. This option can be used to set the time when the computer will automatically turn on. It can be set to turn on the computer automatically every day or only on weekdays. The settings take effect after the computer is restarted
auto on time: this option can be used to set the time of auto on time of the system, and the time format is 24 hours. Type the value or use the left and right arrow keys to set the value. The settings take effect after the computer is restarted
dock configuration dock status dock status universal connect universal interface: if the * system is winnt4.0 or earlier, this setting is invalid. If you frequently use more than one Dell docking device and want to minimize the initial time when accessing the docking station, set it to "enabled" (the default setting). If you want the * system to generate a new system setting file for each new docking device connected to the computer, set it to "disabled"
system security
primary password master password
admin password management password
hard disk drive password (s)
password status
password status: this option is used to lock the system password when the setup password is enabled. Set this option to "locked" and enable setup password to place the system password changed. This option can also be used to place passwords that are disabled by the user at system startup
system password system password
setup password setup password
post hotkeys: this option is used to specify the hotkeys (F2 or F12) displayed on the screen ring post
chassis intrusion
chassis intrusion: this option is used to enable or disable the chassis intrusion detection feature. When "enable silent" is set, if chassis intrusion is detected ring startup, no warning message will be sent. When this option is enabled and the chassis cover is open, the field will display "detected"
drive configuration drive settings
diskette drive a: disk drive a: if a floppy drive is installed in the system, Use this option to enable or disable the floppy disk drive
primary master drive first master drive
primary slave drive first slave drive
secondary master drive second master drive second slave drive
ide drive UDMA supported ide drives: use this option to enable or disable the UDMA enabled ide drives via the internal IDE hard disk interface DMA transmission of the system
hard disk drive Sequence
system BIOS boot devices system BIOS boot sequence
USB Device USB device
memory information memory information
installed system memory system memory: this option displays the size and model of the installed memory in the system
system memory speed: this option displays the speed of the installed memory
system memory channel mode: this option displays the memory slot settings
AGP aperture AGP area memory capacity: this option specifies the memory value allocated to the video adapter. Some video adapters may require more memory than the default
CPU information CPU information
CPU speed CPU speed: this option displays the running speed of the CPU after startup
bus speed: displays the processor bus speed
processor 0 ID processor ID: displays the type and model number of the processor
clock speed
cache size: displays the secondary cache value of the processor
I Integrated devices (LegacySelect options) integrated devices
sound settings: use this option to enable or disable the audio controller
network interface controller: enable or disable the integrated network card
mouse port: use this option to enable or disable the built-in PS / 2 compatible mouse controller
USB controller: USB controller: USB controller: USB controller: USB controller: USB controller: USB controller: USB controller: USB controller: USB controller: USB controller: USB controller: USB controller: USB controller: USB controller Use this option to enable or disable the onboard USB controller
PCI slots: use this option to enable or disable the on-board PCI slot. When disabled, all PCI cards are unavailable and cannot be detected by the system
serial port 1
serial port 1: use this option to control the operation of the built-in serial port. Set to
time / system time / system time
date / system date
Level 2 cache secondary cache
system memory
video controller
panel type LCD model
audio controller
modem controller < br />Primary hard drive
molar bay
Service Tag
asset tag
BIOS version BIOS version
boot order / boot sequence
diskette drive
internal HDD built in hard disk drive
floppy device
hard disk drive
USB storage device USB storage device
CD / DVD / CD-RW drive
CD-ROM device drive
molar hard disk drive
CardBus NIC
onboard NIC On board network card
boot post
level of hardware check ring post: if it is set to "minimum" (the default setting), the post will be checked only when the BIOS is upgraded, the memory mole is changed or the previous post is not completed. Set to "though" to perform a full set of hardware checks ring post
config warnings
warning setting: this option is used to set whether to alarm when the system uses a lower voltage power adapter or other unsupported configuration. It is set to "disabled" to disable the alarm and "enabled" to enable the alarm
internal modem
built in modem: use this option to enable or disable the built-in modem. When disabled, the modem is not visible in the operating system
LAN controller
network controller: use this option to enable or disable PCI Ethernet controller. When disabled, the device is not visible in the operating system
PXE bis policy / PXE bis default policy
PXE bis policy: this option controls how the system handles (boot integrity services (BIS)) authorization requests when there is no authentication. The system can accept or reject the BIS request. When set to "reset", the BIS will be reinitialized and set to "deny" the next time the computer is started
onboard Bluetooth device
minipci device
minipci status: when installing Mini PCI device, you can use this option to enable or disable onboard PCI device
wireless control
wireless control: you can use this option to set the control mode of minipci and Bluetooth wireless devices. When it is set to "application", the wireless device can be enabled or disabled through "quickset" and other applications, but the hotkey is not available. When it is set to / application, the wireless device can be enabled or disabled through quickset and other applications or hotkeys. When "always off" is set, the wireless device is disabled and cannot be enabled in the * operating system
wireless
wireless devices: use this option to enable or disable wireless devices. This setting can be changed in the * operating system through the "quickset" or "" hotkey. Whether this setting is available depends on the wireless control settings
serial port: this option can reallocate the port address or disable the port to avoid device resource conflict
infrared data port. Use this setting to avoid device resource conflicts by reassigning port addresses or disabling ports
parallel mode
parallel mode. Control whether the parallel port of computer works in "normal" (at compatible) (common standard parallel port), "bi-directional" (PS / 2 compatible) (bidirectional mode, allowing two-way communication between host and peripherals) or "ECP" (extended capabilities ports) (default)
num lock
digital lock. Set whether the NumLock LED is on when the system starts up. Set "disable" to keep the digital light off, set "enable" to turn on the digital light when the system starts
keyboard NumLock: this option is used to set whether to Prompt Keyboard related error information when the system starts
enable keyboard
enable keypad: set to "by NumLock" to enable numeric keypad when NumLock light is on and no external keyboard is connected. Set to "only by key" to keep the embedded keyboard disabled when NumLock light is on
external hot key
external hot key: this setting can be used on the external PS / 2 keyboard in the same way as on the laptop. If you use ACPI * as a system, such as WIN2000 or WinXP, the USB keyboard cannot use the key. USB keyboard can only be used in DOS mode. Set to "scroll lock" (the default option) to enable the function, and set to "not installed" to disable the function<
USB simulation
USB emulation: with this option, you can use USB keyboard, USB mouse and USB floppy drive in the operating system that does not directly support USB. This setting is automatically enabled ring BIOS startup. After this function is enabled, the simulation will continue to be valid when the control is transferred to the * system. After the function is disabled, the simulation is turned off when the control is transferred to the * operating system
pointing device
pointing device: when set to "serial mouse", the external serial mouse is enabled and the integrated touch pad is disabled. When set to "PS / 2 mouse", if the PS / 2 mouse is connected externally, the integrated touch pad will be disabled. When set to "touch pad-ps / 2 mouse" (default setting), if PS / 2 mouse is connected, you can switch between mouse and touchpad. The changes take effect after the computer is restarted
video expansion
video expansion: use this option to enable or disable video expansion and adjust the lower resolution to a higher, normal LCD resolution<
battery status
battery status
power management
suspend mode
AC power recovery: this option can reflect the computer's response when the AC power adapter is plugged back into the system
low power mode: this option is used to set the power consumption when the system is dormant or shut down
brightness
brightness: this option can set the brightness of the display when the computer starts up. When the computer works in the state of power supply, the default setting is half. When the computer works in the power supply state of AC power adapter, the default setting is maximum
wake up on LAN
this option allows the computer to wake up from sleep when the network signal is connected. This setting is not valid for standby state. You can only wake up the standby mode in the * operating system. This setting is only valid when an AC power adapter is connected
auto on mod mode: note that if the AC adapter is not connected properly, the setting will not take effect. This option can be used to set the time when the computer will automatically turn on. It can be set to turn on the computer automatically every day or only on weekdays. The settings take effect after the computer is restarted
auto on time: this option can be used to set the time of auto on time of the system, and the time format is 24 hours. Type the value or use the left and right arrow keys to set the value. The settings take effect after the computer is restarted
dock configuration dock status dock status universal connect universal interface: if the * system is winnt4.0 or earlier, this setting is invalid. If you frequently use more than one Dell docking device and want to minimize the initial time when accessing the docking station, set it to "enabled" (the default setting). If you want the * system to generate a new system setting file for each new docking device connected to the computer, set it to "disabled"
system security
primary password master password
admin password management password
hard disk drive password (s)
password status
password status: this option is used to lock the system password when the setup password is enabled. Set this option to "locked" and enable setup password to place the system password changed. This option can also be used to place passwords that are disabled by the user at system startup
system password system password
setup password setup password
post hotkeys: this option is used to specify the hotkeys (F2 or F12) displayed on the screen ring post
chassis intrusion
chassis intrusion: this option is used to enable or disable the chassis intrusion detection feature. When "enable silent" is set, if chassis intrusion is detected ring startup, no warning message will be sent. When this option is enabled and the chassis cover is open, the field will display "detected"
drive configuration drive settings
diskette drive a: disk drive a: if a floppy drive is installed in the system, Use this option to enable or disable the floppy disk drive
primary master drive first master drive
primary slave drive first slave drive
secondary master drive second master drive second slave drive
ide drive UDMA supported ide drives: use this option to enable or disable the UDMA enabled ide drives via the internal IDE hard disk interface DMA transmission of the system
hard disk drive Sequence
system BIOS boot devices system BIOS boot sequence
USB Device USB device
memory information memory information
installed system memory system memory: this option displays the size and model of the installed memory in the system
system memory speed: this option displays the speed of the installed memory
system memory channel mode: this option displays the memory slot settings
AGP aperture AGP area memory capacity: this option specifies the memory value allocated to the video adapter. Some video adapters may require more memory than the default
CPU information CPU information
CPU speed CPU speed: this option displays the running speed of the CPU after startup
bus speed: displays the processor bus speed
processor 0 ID processor ID: displays the type and model number of the processor
clock speed
cache size: displays the secondary cache value of the processor
I Integrated devices (LegacySelect options) integrated devices
sound settings: use this option to enable or disable the audio controller
network interface controller: enable or disable the integrated network card
mouse port: use this option to enable or disable the built-in PS / 2 compatible mouse controller
USB controller: USB controller: USB controller: USB controller: USB controller: USB controller: USB controller: USB controller: USB controller: USB controller: USB controller: USB controller: USB controller: USB controller: USB controller Use this option to enable or disable the onboard USB controller
PCI slots: use this option to enable or disable the on-board PCI slot. When disabled, all PCI cards are unavailable and cannot be detected by the system
serial port 1
serial port 1: use this option to control the operation of the built-in serial port. Set to
5. To set CMOS is to press del to set the time and date. Usually in the second menu, I forget the specific name. But your problem should be that the CMOS is normal after setting, but this problem will appear again after turning off and then turning on
in this case, there may be the following problems:
1. If the main board battery is dead, open the chassis, find the battery on the main board, remove it and buy another one to install it
2. There is a problem with the motherboard. It's not a big problem, but if you want to repair it, you need to repair the motherboard. General miscellaneous motherboard small factory is very easy to have this kind of problem, can only look for the dealer to solve
in this case, there may be the following problems:
1. If the main board battery is dead, open the chassis, find the battery on the main board, remove it and buy another one to install it
2. There is a problem with the motherboard. It's not a big problem, but if you want to repair it, you need to repair the motherboard. General miscellaneous motherboard small factory is very easy to have this kind of problem, can only look for the dealer to solve
6.
Press the "delete" key or "delete" on the keyboard to enter the "CMOS" setting interface, and set the factory set value, hard disk parameters, floppy drive and startup sequence of the computer respectively
7. CMOS setting press del key when power on to enter CMOS setting
first, start the computer. When the computer is performing self-test, we will see a prompt "press del key to enter CMOS settings" at the bottom of the screen. At this time, press del key once. After the self-test is completed, the CMOS interface will appear. The content of CMOS is generally as follows:
1. Standard CMOS setup: standard parameter settings, including date, time, software and hard disk parameters
2. BIOS features setup: set some system options
3. Chipset features setup: main board chip parameter setting
4. Power management setup: power management settings
5. PNP / PCI configuration setup: plug and play and PCI plug-in parameter setting
6. Integrated peripherals: integrate peripheral settings
7. Others: hard disk automatic detection, system password, load default settings, exit, etc
in addition, it should be noted that there are some differences in CMOS settings according to the motherboards proced by different manufacturers
since the CMOS setting is in DOS environment, and the mouse driver has not been loaded, we can only use the "← ↑ → ↓" key of the keyboard to select items“ The "enter" key is used to enter the options“ "Pageup / pagedown" is used to change parameters“ The "ESC" key is used to exit the option
after setting the CMOS, use the options "save & exit setup" or "exit without saving" to exit the CMOS setting, and the computer will restart.
first, start the computer. When the computer is performing self-test, we will see a prompt "press del key to enter CMOS settings" at the bottom of the screen. At this time, press del key once. After the self-test is completed, the CMOS interface will appear. The content of CMOS is generally as follows:
1. Standard CMOS setup: standard parameter settings, including date, time, software and hard disk parameters
2. BIOS features setup: set some system options
3. Chipset features setup: main board chip parameter setting
4. Power management setup: power management settings
5. PNP / PCI configuration setup: plug and play and PCI plug-in parameter setting
6. Integrated peripherals: integrate peripheral settings
7. Others: hard disk automatic detection, system password, load default settings, exit, etc
in addition, it should be noted that there are some differences in CMOS settings according to the motherboards proced by different manufacturers
since the CMOS setting is in DOS environment, and the mouse driver has not been loaded, we can only use the "← ↑ → ↓" key of the keyboard to select items“ The "enter" key is used to enter the options“ "Pageup / pagedown" is used to change parameters“ The "ESC" key is used to exit the option
after setting the CMOS, use the options "save & exit setup" or "exit without saving" to exit the CMOS setting, and the computer will restart.
8. Most computers enter the CMOS by pressing the "F2" key when they are turned on or started. However, some brands of laptops have different ways to enter the CMOS. Here is how to enter the CMOS for laptops<
IBM: press "F1" after power on (some models can press "F1" when restart)
Sony: press "F2" when power on or restart
Dell: Dell: press "F2" when power on or restart (some models can press "FN + F2" combination under Windows)
HP: HP: press "F2" when power on or restart Press "F2" when Acer starts or restarts
Acer: press "F2" when Acer starts or restarts
Toshiba press "ESC" when Toshiba starts, and then press "F1" when Toshiba starts or restarts
COMPAQ: press "F10" when Compaq starts or restarts
Fujitsu press "F2" when Fujitsu starts or restarts
< br />The vast majority of domestic and Taiwan brands press the "F2" key when they start or restart.
IBM: press "F1" after power on (some models can press "F1" when restart)
Sony: press "F2" when power on or restart
Dell: Dell: press "F2" when power on or restart (some models can press "FN + F2" combination under Windows)
HP: HP: press "F2" when power on or restart Press "F2" when Acer starts or restarts
Acer: press "F2" when Acer starts or restarts
Toshiba press "ESC" when Toshiba starts, and then press "F1" when Toshiba starts or restarts
COMPAQ: press "F10" when Compaq starts or restarts
Fujitsu press "F2" when Fujitsu starts or restarts
< br />The vast majority of domestic and Taiwan brands press the "F2" key when they start or restart.
9. COMS is a battery on the motherboard. BIOS is a DOS software to edit it. There are many functions to set hardware in it
BIOS is the basic output and input system
you can press del when you start the machine. For specific options, go to see the information on the Internet ~
now there are some software that can map BIOS in windows, that is, you can edit BIOS in windows!
BIOS is the basic output and input system
you can press del when you start the machine. For specific options, go to see the information on the Internet ~
now there are some software that can map BIOS in windows, that is, you can edit BIOS in windows!
10. The method of setting CMOS is as follows:
1. Start up the computer, and keep pressing del key when the computer is starting up (Note: keep pressing, not holding), until the CMOS
setup interface appears (the shortcut key for some computers to enter CMOS is not del, for example, Compaq is F2, which depends on the situation)
2. Use the cursor key on the keyboard to select the supervision
password item, and then press enter. After entering
password, enter the password and then press enter. At this time, confirm
password will appear again, and then enter the same password again (Note: this item originally means to verify the password just entered. If the passwords entered twice are inconsistent, you will be required to re-enter)
3. Use the cursor key to select user
password and press enter. As above, the password needs to be entered twice to take effect. The above two passwords are set password and modify CMOS
setup password respectively. It is recommended that both of them take the same password for memory
4. Select Dios
features
setup to enter, use the cursor key to select security
option, and then use the page
up / page
down key on the keyboard to change the option to system (the purpose of setting to system is to enable the computer to detect the password at any time, including starting the machine),
and then press ESC to exit
5. Select Save & exit
setup to enter. When prompted, press y to enter again. The above password will take effect
it is said that the security of COMS password is not very high. There are many ways to crack it. No matter how many, consider it the first obstacle. It's up to jackeroo
if you set a password in CMOS, you can rest easy. Let's see how I can deal with it:
the first move is to debug the system.
first, let's see if I can enter the system. As long as the password detection set in CMOS is not "system" (I always need a password before entering the system), I can enter the system and then crack it. What's the method
boot the floppy disk (of course, there is debug on my floppy disk), open debug, and then enter
o
70
2E
o
71
0
quit
when you restart the computer, you will find CMOS check error and need to reset. At this time, you can enter the system without entering the password. CMOS is set in the "system", you can not boot into the system with a floppy disk, it does not matter, while he is not, run debug it
the last move, discharge method
the last (and most effective) method available for those who can't access the computer. We all know that CMOS relies on internal battery power to save information. Therefore, this method is very simple. Open the case cover, find out the discharge jumper, discharge, and it's done. Or take off the battery and connect the positive and negative poles in a short circuit
1. Start up the computer, and keep pressing del key when the computer is starting up (Note: keep pressing, not holding), until the CMOS
setup interface appears (the shortcut key for some computers to enter CMOS is not del, for example, Compaq is F2, which depends on the situation)
2. Use the cursor key on the keyboard to select the supervision
password item, and then press enter. After entering
password, enter the password and then press enter. At this time, confirm
password will appear again, and then enter the same password again (Note: this item originally means to verify the password just entered. If the passwords entered twice are inconsistent, you will be required to re-enter)
3. Use the cursor key to select user
password and press enter. As above, the password needs to be entered twice to take effect. The above two passwords are set password and modify CMOS
setup password respectively. It is recommended that both of them take the same password for memory
4. Select Dios
features
setup to enter, use the cursor key to select security
option, and then use the page
up / page
down key on the keyboard to change the option to system (the purpose of setting to system is to enable the computer to detect the password at any time, including starting the machine),
and then press ESC to exit
5. Select Save & exit
setup to enter. When prompted, press y to enter again. The above password will take effect
it is said that the security of COMS password is not very high. There are many ways to crack it. No matter how many, consider it the first obstacle. It's up to jackeroo
if you set a password in CMOS, you can rest easy. Let's see how I can deal with it:
the first move is to debug the system.
first, let's see if I can enter the system. As long as the password detection set in CMOS is not "system" (I always need a password before entering the system), I can enter the system and then crack it. What's the method
boot the floppy disk (of course, there is debug on my floppy disk), open debug, and then enter
o
70
2E
o
71
0
quit
when you restart the computer, you will find CMOS check error and need to reset. At this time, you can enter the system without entering the password. CMOS is set in the "system", you can not boot into the system with a floppy disk, it does not matter, while he is not, run debug it
the last move, discharge method
the last (and most effective) method available for those who can't access the computer. We all know that CMOS relies on internal battery power to save information. Therefore, this method is very simple. Open the case cover, find out the discharge jumper, discharge, and it's done. Or take off the battery and connect the positive and negative poles in a short circuit
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