Replacement method for Avalon power supply fan W40S12BMD5-01Z90

The W40S12BMD5-01Z90 12V 0.64A PSU cooling fan, size 40*40x28mm, fan speed 18000 RPM. Equipped with full copper motor and double ball bearings, its lifespan can up to 50,000 hours. Its strong air volume ensures efficient heat dissipation of the power supply, which can widely used for most miners such as Avalon, Antminer, Whatsminer, Innosilicon.

Long-term high-load operation, dust accumulation, bearing wear will affect the performance and service life of PSU fan. If the miner's power supply appears abnormal noise or the temperature rises significantly, it's likely a sign of the damaged PSU fan. If it is not replaced in time, it may lead to the power supply overheating, thereby affecting the normal operation of the machine.

Making Avalon 1366 miner as an example, the specific replacement steps for the W40S12BMD5-01Z90 PSU fan are as follows:

1. Turn off the miner, then unplug the power cord, disconnect all plugs connected to the control board, and remove the protective cover plate on the top of the machine.

2. After removing the fixing screws of the conductive copper sheets, carefully take out the power supply, then place it on an insulated workbench.

3. Disassemble the PSU protective case, next find the location of the faulty fan.

4. Remove the protective net of the faulty fan, unplug its plug, then lightly take it out.

5. Inspect the new W40S12BMD5-01Z90 PSU fan, and then align it with the original position for installation, fix its net with screws.

6. Insert the fan connector into the fan interface of the power board, ensuring a tight connection.

7. Install the PSU protective case, reinstall the power supply on the miner case, connect the conductive copper sheets and fix the top protective cover plate.

8. Reconnect the plugs to the corresponding interfaces of the control board, ensuring there is no loosening.

9. Connect the power cord to restart the miner, monitor its temperature and the operation of the fan, making sure a successful replacement for normal heat dissipation effects.

The power supply fan plays a crucial role in maintaining the normal operation of the miner. Timely replacement can effectively prevent the machine from overheating to ensure its long-term stable and efficient operation.