Reprinted [Caiyun Review] BitMicro-Shenma M10 Bitcoin Mining Machine 65W/T

On September 19, 2018, MicroBit officially released the Shenma M10 Bitcoin mining machine at the Sea World Hall of Hilton Hotel on Wanghai Road, Nanshan District, Shenzhen! (For the press conference, please go to: MicroBit -Shenma M10 new product press conference live broadcast! )

The company was established in July 2016. Its main business is the research and development, production and sales of ASIC chips and products/solutions in the fields of blockchain and artificial intelligence, and it provides corresponding system solutions and technical services. At present, its main products are blockchain servers and their ASIC chips. Its independently developed chip products have greatly improved computing performance and reduced system costs compared to the GPU and FPGA solutions previously used in the industry, and have obvious competitive advantages in the field of blockchain computing.
Whatsma M10 official parameters:

Hashrate: 30.0- 33.5 TH/s @ SHA256
Power consumption: 2000W – 2300W
Dimensions: 390mm (L): 130mm (W): 220mm (H)
Chip: 315 Temperature control: Fan*2
Operating temperature: -5℃-40℃
Power supply: 3200W (220V)
Warranty period: 180 days Net weight: 8.55 kg
1. Unboxing photos <br />The outer packaging is similar. The machine reviewed is an engineering prototype. The whole piece received was packaged in an industrial carton with a gross weight of approximately 9.6KG.

The protective layer inside the box is wrapped in a dustproof and waterproof bag and an EPE board is added to enhance the shock absorption effect. The EPE board is customized to fit the main body and comes with a power cord.

The power cord uses the national standard 300/500V 3-core*1.5mm wire diameter, which is obviously thicker than the common 3*0.75 national standard wire on the market.
Appearance and workmanship ▼The body shell of Shenma M10 is made of aluminum alloy precision die-casting design, which can provide strong protection for the hashboard and improve the heat dissipation efficiency by using the overall heat dissipation of the mining machine body shell. The mining machine's dimensions: length 385mm*width 130mm*height 210mm (manual measurement, slight error), net weight 8.55KG.

▼On the nameplate side, the mining machine has its own power supply. The whole machine is very simple, with only two fan power cables exposed.

▼ Wiring port side (air inlet)

▼Warning sign side

▼Air outlet side
▼The power supply model is Whatsminer P10, with a rated power of 2250W, 12.5V*180A DC output, and also provides 12V DC output, using 6.4A*2 dual fans for heat dissipation.

▼The interface side has a power interface, network cable interface, status indicator light, restart button, IP address reset button, TF card slot and network card MAC address.

▼The line connection between the power supply and the mining machine hashboard no longer uses the traditional PCI-E6pin interface, but uses a copper terminal connection. The advantages are that the contact area is increased, the connection is tighter, it can withstand a larger current load, the resistance is small, and the loss is correspondingly reduced.

▼The control board uses an embedded system, and the mining software is CGMiner, which is very familiar to veteran miners.

▼Through disassembly, you can see the details of the aluminum alloy heat sink used in the hash board. There are heat sinks on both sides of each hash board. The front side is made of 3M thermal conductive glue, the back side is made of silicone grease and reinforced with spring screws.

▼The hashboard uses a series power supply design. Each mining machine has three hashboards built in. Each hashboard has 105 chips, forming 3*105 chips in total to provide 34TH/s SHA256 computing power.

▼Full diagram of the mining machine disassembly (it is not recommended for users to disassemble the mining machine by themselves, and the mining machine that has been disassembled by themselves will not be provided with warranty)

2. Installation and debugging
The hardware connection and installation of the mining machine is very simple. You can mine Bitcoin by just plugging in the power cord and network cable.
Debugging step 1: Find the mining machine IP address

The mining machine uses DHCP to automatically assign an IP address by default. After the mining machine is powered on, plug in the network cable and enter the local router. You can find the currently assigned IP address through the mining machine's MAC address. You can also refer to this post "Mining machine IP related information" to find the mining machine's IP address.
Step 2: Enter the mining machine backend

Open the browser, enter the mining machine IP address in the address bar, enter the login page, the default username: root, password: root, enter the home page.
Step 3: Modify the mining pool address and miner name

Click "Configuration/CGMiner Configuration" in the upper menu bar to enter the mining software settings interface and modify the following items:
1. Modify the main mining pool address of "Pool 1"
2. Modify the miner name of "Pool 1 worker" (see the mining pool help)
3. Modify the miner password "Pool 1 password" (any alphanumeric characters)
The backup mining pools "Pool 2" and "Pool 3" do not need to be modified.
Step 4: Modify the IP address (applicable to the management of large quantities of mining machines in mining factories, and can be skipped for a small number of mining machines)

Click "Configuration/Interfaces" on the upper menu bar to enter the mining software IP address setting interface, and click "Edit" to set the IP address to a fixed IP.
After completing the modification of each project, click "Status/CGMiner Status" in the upper menu bar to return to the home page.
The current version of CGMiner does not support Chinese, so a simple translation of the CGMiner interface is made:
▼CGMiner menu bar

▼Home page indicators

3. Project Testing
The room temperature of the test site is about 25 degrees, the noise level is about 45 decibels, and the fan will run at full speed after the mining machine is powered on, the noise level is about 92 decibels, and the standby power is 17W
▼At this time, plug in the network cable, the mining machine chip will start working, and various indicators such as mining machine computing power, temperature, fan speed and noise will increase. After running for about ten minutes, various parameter indicators will reach a constant value.

According to Caiyun’s observations during the test, the overall power consumption of the mining machine is constant between 2200-2205W, with little fluctuation.
The noise level fluctuated slightly between 90-94 decibels, with the highest level at the air outlet reaching 94 decibels.
The temperature varies depending on the test points. The average temperature at the air inlet is 26 degrees, the average temperature in the middle of the mining machine shell is 48 degrees, and the average temperature at the air outlet is 58 degrees. The heat dissipation performance is still outstanding.
The wind speed at the air outlet is 17.3 m/s.
▼After 24 hours of F2Pool testing, the hashrate curve was stable with small fluctuations, which can be described as "beautiful". The 24-hour average hashrate was 34.2T.

▼The mining machine control software shows that all parameters are also stable

IV. Conclusion

1. For the first time, the power supply and hashboard use an integrated connection method, which reduces line loss and can withstand higher power loads while also speeding up the efficiency of the machine.
2. The overall average computing power is 34T, the power consumption is 2200W, and the comprehensive unit computing power consumption ratio is 65W/T. It can be said to be a mining machine with the best power consumption ratio on the market.
3. The whole machine is provided with 180 days of after-sales service, and the service quality is guaranteed.
4. After testing the whole machine, Caiyun concluded that it was stable. The mining machine ran stably without any failures or problems. The computing power, power and temperature were stable.
Tips:
1. Because the power of the whole machine has exceeded 2200W, it is not recommended to use a 10A ordinary socket. Try to use a 16A socket.
2. When the power is off and the machine is shut down, the fan will also be turned off and unable to dissipate heat. The temperature inside the machine is still high. It is recommended to unplug the network cable before shutting down the machine to stop the chip from running. Wait for the fan to continue running for about 2 minutes, and then unplug the power cord when the outlet temperature is close to room temperature.