The CPU fan and power supply fan only spin briefly and then stop, indicating a problem with the power supply to the CPU, leading to CPU failure. Below are steps to troubleshoot the issue.

　　1. There may be a problem with the power supply or the motherboard BIOS settings. First, remove the motherboard battery, wait two minutes, and then put it back to see if that resolves the issue.

2. Unplug the computer’s power supply and then plug it back in to see if it can start normally. If the problem persists, consider replacing the power supply, as our repair experience suggests that this issue is often related to the power supply.

Note: There can be many other reasons for this issue; the above two suggestions are just one aspect. I hope they can help you.

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