this post was submitted on 10 Aug 2023
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As stated in the title my PC suddenly completely shuts down as if i would lose power. I am pretty sure that it is the Power supply but i wanted to ask if it even is possible for a CPU or GPU to just let the whole computer lose electricity before i buy a new PSU

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[–] Fubar91@lemmy.world 1 points 1 year ago* (last edited 1 year ago) (1 children)

Few things to check:

  • make sure all wires are secure and snuggly attached to everything. Including the rest/power button switches, PCIe devices, sata devices, etc.

  • double check temps before crash to see if theres any issues while idle or under load there.

  • check and possibly post your windows logs and event viewer logs to look for possible issues leading up to right before the power fail events.

  • do you have any overclocks applied? (Including xmp/amp) if so set your motherboard back to defaults and test again.

  • make sure BIOS firmware is up to date (might as well make sure all your other drivers are up to date as well).

  • try each ram dimm one at a time in both primary slots, this may help determine a dimm issue.

Borrow or using another power supply would be the best way to full confirm or deny the issue being a power supply failure. When a computer just instantly powers off like that its usually either a power failure or some kind of critical harware failure hitting a failsafe and shutting down. Normally this issue points to motherboard or psu issues in my experience.