this post was submitted on 21 May 2026
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PC Master Race

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PC randomly restarts out of nowhere (sh.itjust.works)
submitted 21 hours ago* (last edited 16 hours ago) by HerbalGamer@sh.itjust.works to c/pcmasterrace@lemmy.world
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As title suggests.
Coming home the other day I find my PC started to restart out of nowhere, with no warning before or errors afterwards. I haven't changed anything and haven't had this problem before.

Any suggestions on what to do?

Device specs:
Processor Intel(R) Core(TM) i9-9900K CPU @ 3.60GHz 3.60 GHz
Installed RAM 64.0 GB
Storage 233 GB HDD ST9250315AS, 112 GB SSD OCZ-VERTEX2, 466 GB SSD Samsung SSD 970 EVO Plus 500GB
Graphics Card NVIDIA GeForce RTX 3060 (12 GB)
System Type 64-bit operating system, x64-based processor
OS Windows 10

UPDATE: Memtest got through 2 out of 4 passes in under 4 hours before I got fed up with waiting, which in itself seems a good sign since it didn't restart there.
Event viewer showed one odd Event: The process C:\WINDOWS\Explorer.EXE (ANDROID-17) has initiated the restart of computer ANDROID-17 on behalf of user ANDROID-17\smuld for the following reason: Anderer Grund (geplant) Reason Code: 0x80000000 Shut-down Type: restart Comment:

No idea why because automatic restart is disabled.

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[–] the_riviera_kid@lemmy.world 3 points 20 hours ago (1 children)

Maybe faulty ram? Pull out all ram sticks but one and see if it happens again if it does swap ram sticks until it doesn't.

If that doesn't solve it it may be a failing PSU or other major component like the GPU or HDD.

A good starting point is removing everything not needed to boot and slowly adding them back again until it fails.

[–] HerbalGamer@sh.itjust.works 2 points 20 hours ago (1 children)

Those were my ideas as well. Here's hoping it's the RAM because I could work with less and don't have the money for a PSU replacement.

[–] EpeeGnome@feddit.online 2 points 20 hours ago

Yeah, PSU is my top guess based on what all you've said. My next step would be to swap to a test PSU to see if it behaves, but since that's not an option for you now, testing the other things people have suggested is worth a shot and can't hurt.