How many watts of 4T hard disk miner
The power consumption of mechanical hard disk itself is not large, and the power consumption of mechanical hard disk is almost the same regardless of large capacity or small capacity. Look at the picture, it's a 4tb mechanical hard disk
working current 5V 430ma, 12V 400mA, calculated power consumption = 5 * 0.43 + 12 * 0.4 = 6.95w, no more than 10W< br />
different hard disks have different power 2. The power of monitoring hard disk is relatively low, generally about 8W. That's the advantage of monitoring hard drives 3. The power of hard disk is different when it starts and runs. When starting, the general home hard disk is about 12W, but after starting to run, it is generally about 9W hard disk is one of the main storage media of computer, which is composed of one or more aluminum or glass discs. The disk is covered with ferromagnetic material extension data is too laggy to +12V if the power supply voltage of the main power supply is below 11V (and even to 10V or below). The speed of the hard drive motor will not meet the requirements. It will cause the hard disk to read repeatedly and repeatedly. Because of the difficulty in reading the data, it will appear to be suspended or stuck. The hard disk light is always on and the sound is always on it is necessary to use a stable power supply. If the power supply is not pure or insufficient, it is easy to cause data loss or even hard disk damage there are solid state hard disk (SSD disk, new hard disk), mechanical hard disk (HDD traditional hard disk) and hybrid hard disk (HHD, a new hard disk based on traditional mechanical hard disk). SSD uses flash memory particles to store, HDD uses magnetic disk to store, hybrid hard disk (HHD) is a kind of hard disk that integrates magnetic hard disk and flash memory. Most hard disks are fixed hard disks, which are permanently sealed and fixed in hard disk drives
turn on the CPU and turn off the display screen. The power saved is enough for a lot of hard disks.
the working state of the hard disk is 15 or 16 watts. If it flashes, it's so high power, and it's very small if it doesn't read or write, about a few watts
however, some are calculated according to 1t = 1000gb, that is, the base is 1000
so the actual capacity of 4T hard disk on the computer should be 4000 * 1000 * 1000 * 1000 / 1024 / 1024
about 3725.29gb
so the manufacturers are not the same.
When a hard disk with a nominal capacity of 4tb is viewed in a computer system, the theoretical capacity is about 3725gb, but the actual capacity is slightly less than this value
the reason for the "shrinkage" of the capacity is that the nominal capacity of the hard disk is different from the calculation method of the computer system. For storage procts including hard disk, the manufacturer calculates the nominal capacity in decimal system:
1KB = 1000bytes, 1MB = 1000KB, 1GB = 1000mb, 1TB = 1000gb; The computer operating system is binary: 1KB = 1024bytes, 1MB = 1024KB, 1GB = 1024MB, 1TB = 1024gb way to calculate capacity
therefore, the actual hard disk capacity seen in the computer will be different from the nominal capacity of the manufacturer
extended data
basic parameters of hard disk
1, capacity
as data storage of computer system, capacity is the most important parameter of hard disk
the capacity index of hard disk also includes the single disk capacity of hard disk. The capacity of a single disk refers to the capacity of a single disk of a hard disk. The larger the capacity of a single disk, the lower the unit cost and the shorter the average access time
generally, the larger the capacity of a hard disk is, the cheaper the unit byte is, but the hard disk beyond the mainstream capacity is slightly exceptional
when we bought a hard disk, we said it was 500g, but the actual capacity was smaller than 500g. Because the manufacturer is converted by 1MB = 1000KB, so we buy a new hard disk, which is smaller than the actual consumption
2, rotational speed
speed (rotational speed or spindle speed) is the rotational speed of the motor spindle in the hard disk, that is, the maximum number of revolutions that the hard disk can complete in one minute. The speed of speed is one of the important parameters to mark the grade of the hard disk. It is one of the key factors to determine the internal transmission rate of the hard disk, which directly affects the speed of the hard disk to a great extent
the faster the speed of the hard disk is, the faster the hard disk can find files, and the transmission speed of the relative hard disk is also improved. The speed of the hard disk is expressed in RPM, which is the abbreviation of revolutions per minute and is RPM / min. The larger the rpm value, the faster the internal transfer rate, the shorter the access time, and the better the overall performance of the hard disk
the spindle motor of the hard disk drives the disk to rotate at high speed, which proces buoyancy and makes the magnetic head float above the disk. The faster the speed is, the shorter the waiting time is. Therefore, the speed of the hard disk is largely determined by the rotational speed
There are 5400rpm and 7200rpm common hard disks for home use, which are also the first choice for desktop users; For notebook users, it is mainly 4200rpm and 5400rpm. Although some companies have released 10000rpm notebook hard disk, it is rare in the marketserver users have the highest requirements for the performance of hard disks. The rotational speed of SCSI hard disks used in the server is basically 10000 rpm, even 15000 rpm, which is much higher than that of household procts
Higher speed can shorten the average seek time and the actual read-write time of the hard disk, but with the continuous increase of the speed of the hard disk, it also brings negative effects such as the increase of the temperature, the increase of the wear of the motor spindle and the increase of the working noiseActual usable capacity of 4T desktop hard disk of Western data: 3725.90gb
4tb is currently 4-disc or 3-Disc
while 500g is a single disk with only half capacity (or old-fashioned hard disk, multi disk)
but the overall power consumption is almost the same. The difference is not obvious.