Power consumption of power board

1.

It is reported that the performance of bm1385 chip is more than twice that of bm1384

The power supply scheme of S7 is similar to that of S5. The S5 + mode of dense chip arrangement is adopted, which makes the arrangement structure more compact. Under the same space, 60 chips are placed in S5 and 162 chips are placed in S7

The price of S7 is 1823 US dollars, equivalent to 11650 RMB yuan, and the delivery time is from September 21 to September 30. At the same time, the official announced the parameters of ant mining machine S7. The chip adopts bm1385, a 28nm fully customized chip independently developed by bitcontinental, with a computing power of 4.86t and a power consumption of 1201w. Ant miner S7 is the best miner with the best power consumption ratio so far, and the power per T is about 250W

official website is not open for sale at the moment. Users of early adopters can place their orders in overseas official website. The delivery address is 17% of the Chinese mainland tax and the purchase price is 13630 yuan. p>

ant mining machine S7 specification parameters:

1. rated calculation force: 4.86 Th / S ± 5%

2. wall power consumption: 1210 watts (bit mainland apw3-1600 watt power supply, 93% AC / DC efficiency, 25 ℃ ambient temperature)

3. power efficiency: 0.25 Joule / GH (wall, 93% AC / DC efficiency, 25 ℃) ° C)

4. rated voltage: 12V ± 5%, which should not be lower than 12.0V

5. number of single power board chips: 162x bm1385

6. overall dimension: 301 mm (L) * 123 mm (W) * 155 mm (H)

7. cooling: 2 × 12038 fan

8. working temperature: 0 ℃ to 40 ℃

9. network connection: Ethernet

< / OL >

for details, please see "ant S7 miner start pre sale"

2. bitcoin mining machine
mining is definitely the first professional mining machine, many new children's shoes will choose to use graphics card mining, but the graphics card mining is just like using "magic oil" to do a professional thing, but the efficiency is certainly not high. To dig bitcoin, we should pay attention to the following points: first, computing power (i.e. mining speed), second, power consumption, and third, stable performance. Computing power, bitcoin mining is faster than problem-solving speed, so it is self-evident that speed is more important; Power consumption is directly related to efficiency, that is, the issue of cost expenditure; The stability of performance mainly depends on the stability of calculation force when the working frequency is constant. Just think about it, no one wants the miner to lose its computing power every so often, or even break down. After all, it's all money ~
the general computing power of the graphics card is a few gigabytes, while the professional miner chip is as high as several thousand gigabytes. Take bm1387, the chip with the lowest power consumption in the world, as an example, the S9's computing power is as high as 14T, the power consumption on the wall is only 1400W, and the rated computing power reaches 13.5 Th / s ± 1 J / GH + 12% (wall, AC / DC 93% efficiency, 25 ° Rated voltage: 11.6 ~ 13.0v, in addition, in the case of non independent power supply, three power calculation boards can be connected to different power supply respectively, but each power calculation board can not be connected to multiple power supply, and ensure that the power calculation board is finally powered on
among the mining machines, ant mining machine is my favorite. At the same time, based on the average investment cost of bitcoin in the early stage, ant S9 can basically recover the capital in about five months, and the income in the later stage is immeasurable.

3. There are many reasons for the low computing power of S7 bitcoin
1. It may be the problem of temperature. Low or high temperature will affect the calculation power of the miner
2. There are problems in the miner itself, which lead to abnormal calculation force
3. The aging of mining machine leads to the decrease of calculation power, and the calculation power of second-hand mining machine is relatively the first
bitcoin, Leyte coin, sand coin and all the mining machines that need mining are like this.

4.

Article / by

5g will become the most frequently used word in 2020. In the past year, 45 telecom operators around the world have begun to deploy 5g. Obviously, 5g will change our lives at a speed far faster than 4G. As the world's largest mobile phone chip supplier, at this CES, Qualcomm also showed its overall layout of 5g era for the first time, initially completing the comprehensive coverage of mobile phones, computers, cars and cloud

different from the previous press conference in which mobile phone business occupied the C position, the biggest space of this CES press conference of Qualcomm was about the automobile business. For the first time, the automotive field has become the focus of Qualcomm's layout. In addition to the Internet of vehicles business that has been laid out before, this time, Qualcomm has also extended its tentacles to automatic driving

automatic driving platform with more flexibility and lower power consumption at the press conference of Qualcomm on the eve of CES, Qualcomm officially launched the new snapdragonride platform, officially listed various problems encountered in current automatic driving, and said that its own platform is one of the most advanced and scalable open automatic driving solutions in the automotive instry. This kind of scene is like, one day, a former mobile phone chip maker suddenly stood in front of a pile of car Tier1 and sighed: "there is no one who can take a taxi. I have to come to the automatic driving solution."

with the development of 5g and artificial intelligence technology, more and more technology companies have joined the automotive instry, using the advantages of chips and software to enable intelligent vehicles and accelerate the intelligent and networking process of vehicles. Perhaps, owning a more intelligent and convenient car will come true earlier than we think

this article comes from the author of car home, which does not represent the standpoint of car home

5.

About

} are black sesame CEO and coo Liu Weihong

black sesame CEO. Previously, he was a member of the founding team of omnivision, a global vision chip leader. He has worked in Silicon Valley chip instry for more than 20 years and has rich experience and technology accumulation in image processing chip and software algorithm

CTO Qi Zheng is the main design member of Intel Pentium II chip, CSO Zeng Daibing is the chief engineer of ZTE microelectronics, and coo Liu Weihong was the president of chassis and control system division of Bosch China ADAS

because of its strong R & D team, heima, a start-up company, can make the ADAS chip huashan-1 A500 within three years and launch it in mass proction. This year, it will launch huashan-2 a1000 chip and launch the fad automatic driving platform

since the beginning of this year, if new cars are not equipped with L1 / L2 automatic driving, they are "embarrassed to sell", the popularity of automatic driving is rapidly increasing, and the higher level of L3 or even L4 automatic driving is on the eve of mass proction, and the demand for automatic driving chips and computing platform solutions in the instry is explosive growth. The market scale of autopilot chips alone is expected to reach trillion US dollars, becoming the largest single market in the semiconctor instry

Therefore, it is right time for fad to enter the automatic driving market

in August this year, FAW Intelligent Network Development Institute reached a technical cooperation agreement with heima. FAW Intelligent Network Development Institute will start the development of intelligent driving platform based on huashan-2 a1000 to meet the demand of subsequent mass proction models. The two sides will jointly promote the application of artificial intelligence technology in the automotive instry and accelerate the instrialization of domestic intelligent driving chips

in addition, heima has signed a number of fad fixed-point models, and it is expected that there will be models equipped with fad automatic driving platform on the market next year. In addition, many enterprises at home and abroad have begun to test fad automatic driving platform, and the test vehicles have been on the road

the great success of black sesame in automatic driving chip and domain controller makes instry research institutions begin to pay attention to this start-up company which has just been established for more than four years. In April this year, cbinsights, one of the strongest think tanks in Silicon Valley, released the list of Chinese chip design enterprises. Black sesame was listed in the field of vehicle chip, becoming one of the top 65 Chinese chip design enterprises

in July this year, black sesame Huashan No.2 a1000 chip also appeared in the world artificial intelligence conference, together with pingtouge, Yitu, Cambrian and other high-end artificial intelligence chips

it can be said that after more than four years of development, black sesame has become the world's leading autopilot chip design company, and even has the ability to compete with the eldest brother in the chip instry. At the same time, the rapid progress of black sesame also promotes the domestic automatic driving chip design to a new level

in the conversation with the two founders, they also revealed a colorful egg. Next year, hei mahjong will release a chip with stronger performance. At that time, the highest computing power of fad automatic driving platform equipped with this chip is expected to exceed 1000tops, and its computing power can be fully automatic driving

this article comes from the author of car home, which does not represent the standpoint of car home

6.

[car home? New energy]? At 1:30 a.m. on June 24, NVIDIA founder and CEO Huang Renxun and Olak? Llenius, global president of Mercedes Benz group, jointly announced in the live media event that the two companies will jointly develop "software defined vehicles" and will carry NVIDIA driveagxorin computing platform from the next generation of Mercedes Benz

according to the on-board computing platform released by NVIDIA at the GTC conference in May this year, we can see that NVIDIA's new NVIDIA drive computing platform has good performance in terms of power consumption and computing performance, among which the computing platform that officially claims to have "L2 + level assisted driving" function will have 200tops computing power, while its power consumption is only 45W; The computing platform with "L5 level automatic driving" function will have the computing power of 2000tops, and its power consumption is only 800W. In contrast, Tesla has achieved mass proction of "fully automatic driving chip" with a computing power of 144tops and a power consumption of 250W on its motherboard. As for the latest progress of cooperation between Mercedes Benz and NVIDIA, please continue to pay attention to the follow-up report of auto home (Hu Yongbin)