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Cybtc Evaluation: AntMiner S9 bitcoin mining

2016-11-30 10:39 | admin

Roundup:Cybtc Evaluation: AntMiner S9 bitcoin miningAntMiner S9 is a Bitcoin Mining Machine released in June, which uses the latest generation of Bitcoin BM1387, an 11.85 TH, power of 1172 watts. BM1387 chip ...

AntMiner S9 is a Bitcoin Mining Machine released in June, which uses the latest generation of Bitcoin BM1387, an 11.85 TH, power of 1172 watts.

BM1387 chip is the bit of the mainland's own research and development of the 5th generation Bitcoin mining machine chip, the use of TSMC's 16-nanometer FinFET process, the application of full custom design, single chip computing power up to 74GH / S, 0.4V core voltage Power consumption of only 0.08W / GH / s. Is by far the lowest power chip chip history.
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Ant miner S9 official parameters:
Rated power: 11.85 TH / s ± 5%
Wall power consumption: 1172 watts + 12% (bit continent APW3-1600 watts of power, AC / DC efficiency of 93%, 25 ℃ ambient temperature)
Power efficiency: 0.1J / GH + 12% (wall, AC / DC efficiency of 93%, 25 ° C ambient temperature)
Rated voltage: 11.6 ~ 13.0V
Number of chips: 189 pieces

The following is the latest evaluation by Cybtc:

First, out of the box exposure
Ant S9 uses five layers of industrial carton packaging, logistics warehousing graphics, product bar code, QC (quality inspection), brand logo readily available, mining machine with pearl cotton board suspended design, effective protection of the transport safety.
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With a  S9 mine and a double-sided English manual.
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The side of the Ants Miner S9 .
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At the top of the Mineral machine, you can see the machine consists of three pieces of arithmetic board composition, each operator board has three pci-e6pin power jack.
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In front of the machine, you can see the sd card socket (reserved), ip key, network cable jack, reset button and status lights (as well as ant mine logo, qc labels and bar code), and front fan, wind.
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The other side of the machine, there is a warning sign. Rear fan (from this side of the wind).
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Chassis is  the same as s7, the use of aluminum alloy, surrounded by one molding, arithmetic board through the slot inside the chassis interspersed.
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You can see inside each chip has an independent heat sink, the overall structure is very close.
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Put the following physical parameters of the mine.
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Second, installation and commissioning

S9 miner in the installation before the heat sink need to carefully check whether the phenomenon of off.

The test power supply is the APW3-12-1600-B2 ants power supply (1600w gold conversion rate). For more information on this power supply can refer to our previous evaluation. Http://www.cybtc.com/thread-14348-1-2.html

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First, plug in the power cord to the arithmetic board, ant machine three arithmetic board above, respectively, there are three standard pci-E6pin interface. (Wire standard at least 18AWG and above)
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And then plug in the power controller (S9 controller is also pci-E6pin interface), then plug in the cable.
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This is the final wiring diagram of the mine.
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Power, the connection method and the same as ants s7, if the use of two power supply, can not cross-wiring. Can refer to the official document, the following figure for the correct connection (picture s7 miners, but the same principle, the official document screenshot).
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Connected to the power, the mine automatically assign ip address, scan the latest access device ip address into the background. (Ip address of the mine can refer to this post http://www.cybtc.com/thread-9843-1-1.html)

First of all, open the browser ip into the browser, and then enter the password into the background of mining machine. The default user name and password are: root
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And then set the pool, this bit is the bit of the continent's currency coin pool (ant pool), the ant pool of the tutorial can enter this post: http://www.cybtc.com/thread-15465-1-1

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After the setting is completed, the operation will start after about several tens of seconds. The background page can see the mine real-time status.
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Status lights of the mine during normal operation.
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Third, the test

The test room noise is about 38dBa, indoor temperature of about 29 degrees.

The default frequency of 550, running more than one day, the arithmetic power fluctuates between 11.6-12T, with an average of about 11.84T, the arithmetic curve is smooth and does not appear large fluctuations.
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Power measured 1317w.
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Overclocking test, the default frequency of 550, on the mention of third gear to 568.75, run one hour measured the power of about 12.2-12.3T between.
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Power measured 1362w.
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Noise, the background fan speed between 4320-4560 turn, the machine measured about 20cm at 81-86dBa between.
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Distance 1 meter measured about 76dBa.
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By default, the fan speed will automatically adjust with the machine temperature, when the room temperature is low at night, the background fan speed down to 3000-4000, the machine measured about 20cm about 72dBa.
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Temperature, the fan automatically adjust the next (not a percentage), the background chip temperature of 63 degrees, the chassis measured around 36 degrees.
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Inlet intake measured 32.8 degrees.
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Outlet measured 44.9 degrees heat.
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Fourth, simple summary:

1. Ant S9 arithmetic power to achieve the official parameters of the basic, after a long period of time running average 11.84T, the arithmetic curve is smooth without large fluctuations, there is a certain frequency hopping space. Such a large force of the mining machine is very suitable for mining, 86 Taiwanese machine operator can reach 1P.

2. Power measured higher than the official parameters, the default frequency of 550, the power of 11.84T, power 1317w. Despite this, due to the use of 16-nanometer process chip, the performance is currently in the coal mine machine power ratio of the best (the most power -), a world leader.
(Note: Due to the high temperature in the south, the power consumption is increased by 50% for every 10 ℃ rise in ambient temperature, so the measured data of each area will be slightly deviated due to the temperature.

3.S9 The only problem is noise, so far the largest noise in the ants series machine, a long air duct, measured before and after the temperature difference, plus violent fans, if more than one together, the mine room temperature is high, then noise Will be great.

Fifth. Appendix
(A) upgrade the firmware trilogy
1. First enter https://cnshop.bitmain.com/suppo ... 2419599ebY2YSlj06DE download the S9 firmware.
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2. Enter the upgrade interface to select the file you just downloaded (without decompressing).
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3. The last point starts.
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Process 2-3 minutes (note that the upgrade process do not cut off the power), the first mine to stop and then start the two, back to the background interface to upgrade the success of friends.

(B) the back of the common interface Xiangjie

1. IP  settings.
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2. Modify the password to enter the background.
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