Instructions for quickly replacing the Antminer L7 hashboard

The Antminer L7 hash board consists of 120 BM1489 ASIC chips per board, and an L7 miner has three hash boards. The hash board is the core hardware for miner operation, relying mainly on its stable performance and efficient hash rate for mining.

When the hash board malfunctions, it can lead to the following consequences:

a. Decreased mining efficiency: This can directly result in unstable operation of the hash board, even complete shutdown, affecting the overall performance of the miner.

b. Reduced mining income: Due to decreased mining efficiency, the amount of currency mined will also decrease, leading to reduced income. This is a significant blow as mining income is the primary source of income for miners.

c. Increased repair costs: After a hash board malfunction, repairs or replacements may be necessary. For some older miners, finding replacement hash boards may be difficult, requiring the replacement of the entire miner, increasing operational costs.

Here is a detailed guide for replacing the L7 hash board:

1. Prepare a brand-new Bitmain Antminer L7 hash board (prepare 3 if 3 hash boards are damaged), and a screwdriver.

2. Check the monitoring software beforehand to see if there are any hash board abnormalities displayed. If so, a replacement is necessary.

3. Turn off the miner and unplug the power cable. Wait for a while to allow the hash board and other components to cool down to prevent scald while handling.

4. Use a screwdriver to dismantle the fixing screws of the miner's shell and take off the protective case.

5. Disconnect and remove the exhaust fan cable.

6. Take out the conductive copper sheets, dismantle all connecting cables, then carefully remove the hash board from the miner, being careful not to touch other components.

7. Before installation, please confirm if the model matches the original miner.

8. Push the new hash board into the miner's housing, ensuring it is positioned accurately.

9. Reconnect all cables. Ensure the positive and negative poles are correctly aligned when installing the conductive copper busbars, then tighten the screws.

10. Install the air outlet fan, connect the remaining cables, then secure the miner's shell.

11. Restore power to the miner and check the operation of the new hash board.

If one of the ASIC chips on the Antminer L7 hashboard is damaged, we can refer to how to quickly replace the Antminer L7 hashboard ASIC chip to replace it.

Restore the operation of miners by promptly replacing faulty hash boards to ensure that miners can continue to participate in the mining activities of the blockchain network in an efficient manner, thereby ensuring stable profits. It also reduces potential mining revenue losses due to decreased hash rate, as well as additional repair costs that may increase due to long-term failures.