If your PC won’t boot, the problem is most likely caused by your power supply. While the previous video outlined some possible signs of a failing power supply, this video covers basic troubleshooting to isolate and hopefully fix the issue.
First, we need to make sure this is not a localized electrical problem.
- Test to see if the problem is related to the wall outlet or buying a fuse that plugs the PC into a known working outlet.
- Make sure the power cable is not the problem by swapping it with a known good cable
- Check all power cable connections.
- Check the power switch on the back of the PSU and make sure it is on |position
- Check the PSU for external wear or damage that may have been caused by overheating
If your PC still won’t boot after completing these steps, you can run a so-called jumper test to assess the functionality of the PSU itself.
- Completely disconnect the power supply from the motherboard and power cable. For modular power, leave the 20-pin connector attached. you will need it soon.
- Bend a metal clip into a U shape
- With the power switch in the O position and unplugged, insert one end of the clip into the green pin and the other into the black pin.
- Connect the PSU and turn on the power switch. If the PSU fan is spinning, it means it’s getting power and hasn’t completely failed. This could mean that a partial failure is the cause of the problem, but it could also mean that the problem lies elsewhere. If the fan is not spinning, it’s time to replace that power supply.
that’s it! Check out Velocity Micro’s blog for PC troubleshooting tips and tricks.
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Charlie has been a member of the Velocity Micro team since 2018. He loves both graphics he designs and he PC games.
