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 16 hours ago* (last edited 11 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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[โ€“] Nighed@feddit.uk 6 points 16 hours ago (1 children)

Testing the external questions:

A stupid one, but check the power cord is in securely and nothing is pressing against the power switch on the power supply!

Plug a lamp into the same extension lead and see if it flickers when the reboot happens.

[โ€“] HerbalGamer@sh.itjust.works 2 points 10 hours ago

Plug a lamp into the same extension lead and see if it flickers when the reboot happens.

The cables are fine but I'm keeping this one in mind