Laptop Turns On For A Moment And Restarts On Its Own

Problem description:

The laptop turns on for a moment and restarts on its own. The cycle repeats over and over until you remove the battery. The power light turns on, stays on for a moment, goes off, and turns on again. There is no video when the laptop is on. The problem happens when the laptop runs on AC or battery power.

Possible cause:

1. Memory failure.
2. Motherboard failure.

Possible troubleshooting steps and repair solution:

1. Try reseating the memory module, maybe it’s not making good contact with the motherboard.
Try replacing memory with another known good module and test again.

If you have two memory modules installed in the laptop, try removing them one by one and test the laptop with each module separately. If one of the memory modules is faulty, replace it with a good one.

2. If reseating/replacing memory modules do not help, most likely this is the motherboard problem. Replace the motherboard.

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