Whatsminer Introduction, Disassembly and Performance Report

Introduction

MicroBT, also known as Shenzhen Bit Microelectronics Technology Co., Ltd., has come out with their latest WhatsMiner: the M10. The M10 is a bitcoin miner which runs on the new 16nm ASIC (QA1800) chip. Like its predecessors, it includes a controller unit and power supply. What makes the M10 stand out is its improved performance and efficiency. The M10 provides an impressive hash rate of 33.0 Th/s using the SHA-256 algorithm, consuming only 2150W. An important aspect to note is that the input voltage must be 176-246V. This means the regular AC voltage of 120V in North America is not sufficient.

Figure 1: Multiple views of the WhatsMiner M10

Spections

Model Number: P10-12-2200-V1

Chip: 16nm ASIC (QA1800)

Dimensions: 34x20x17cm

Weight: 8.55kg

Operating Temperature: -5°C to 40°C

Input Voltage: 176-246V

Input Current Maximum: 25A

Hash Rate: 33Th/s

Power consumption: 2150W

Disassembly and Part Identification

The following section shows the components of the miner through disassembly. Below, you can see the controller.

Figure 2: (Top-left) Controller connected to power supply, (Top-right) Controller (Bottom) Partially disassembled miner

Each hash board is connected to the power supply using a connector board, as shown below.
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Figure 3: Connector board used to connect each miner to the power supply.

There are two heat sinks that are screwed onto the chips. These two can be removed. The larger heatsink at the back is melded to the board and cannot be removed.

Figure 4: (Left) Removable heat sinks, (Right) Non-removable heat sinks on the back.

A lot of precautions and careful planning were put into the design of this miner. As shown in the picture below, the springs used to fasten the heat sink to the chips includes screws. This allows the product to hold up better to moderate vibration while also spreading out the tension.

Figure 5: Close-up of heat sink screwed onto chips using screws and springs.

Upon removing the heatsinks, we can see that thermal paste was used on the underside of the removable heat sinks and covers all chips. The thermal paste acts as another layer to secure the heatsink to the chip board with minimal heat build-up. Note that towards the bottom-half of the image below, the chips are spaced quite close together with smaller heat sinks between the chips. This is because that portion of the board is closest to the fan and receives the most cooling. As you look towards the top of the photo, the chips are spaced further apart with larger heat sinks to compensate for the lower airflow, ensuring that the unit does not overheat during operation.

Figure 6: Heat sink removed to show ASIC chips. Arrow indicates direction of airflow when fan is turned on.

Figure 7: Close-up of 16nm ASIC chip

Set-up Process

1. Download and install the latest version of the free WhatsMinerTool program. 2. Plug one end of the Ethernet cable into the miner, and the other end into your router/switch. 3. Plug the built-in fan into the miner. 4. Plug one end of the C13 power cord into the miner, and the other end into your electrical socket ensuring it supplies between 176-246V. NB: Because the miner consumes 2150W, ensure your power cord can sustain at least 2.15kW of continuous load. 5. Wait 3-5 minutes after you power up the miner, then open WhatsMinerTool on your computer. 6. The first step is to determine the IP address of the miner. This can be done by either logging into your router or by using WhatsMinerTool. This guide will show you how to do the latter. To begin, click the button outlined in a red box in figure 8 to bring up the IP discovery window.

Figure 8: Start-up screen for WhatsMinerTool.

7. Click the button outlined in a red box in figure 9. This will start the process of discovering the IP address.

Figure 9: IP discovery screen.

8. At the back of the miner, locate and click the IP button (shown in figure 10).

Figure 10: Back of the M10 with the IP Found button circled.

9. After a few minutes, the IP address of the miner will pop-up, in a blue box in figure 9. After this, you can close the window. A pop-up will appear confirming if you want to close the window; you can close this window as well.

10. Copy the discovered IP address and paste it into your preferred web browser.

11. When prompted, enter the following log-in information:
username: root
password: root

12. You will be presented with the summary page upon logging in.
NB: the hash rate will read a lower value, for example 10.8KGH/s. This is due to the miner sweeping through the frequency settings. The hash rate will increase to 33Tz/s after setup, which will take approximately 10-15 minutes, at which point the elapsed time will reset.

Figure 11: Screenshot of the hash rate a few minutes after powering the miner.

Figure 12: Screenshot of the hash rate after the miner has been powered for approximately 10-15 minutes.

13. The next step for setting up is to indicate which pool to mine from. From the top menu bar, select Configuration > CGMiner Config. The page shown in figure 13 will appear.

14. For each pool, select from the dropdown menu (outlined in red below). There are some default pools and a custom option for you to fill the address in.

15. You can individually set the workers username (outlined in blue) and password (outlined in green).

16. Once you have made the appropriate changes on this page, scroll to the bottom and click “Apply changes”.

Figure 13: Screenshot of fields to be changed before mining.

17. Restart the miner either by (a) pressing the “Restart CGMiner” button on the current page.

18. After restarting, allow the system to start-up again then you can begin mining.