Pc randomly shutting down

thegrayspirit

Prominent
Nov 7, 2017
1
0
510
I have a problem where my computer randomly shuts down, mostly not long after being powered on, like 10-30min.

it just suddenly shuts down, like if the power goes, then it restarts, i can play games, and do other things, maybe even use the computer for many hours, and then it just shuts down, its more annoying then a problem.
i have a feeling that it is the psu, but i don't want to change it if that is not the case

Pc parts.
PSU: RM850i 850w
CPU: i7-4790k 4.00GHz
GPU Gtx titan x pascal With EVGA Hybrid cooler
CPU cooler: EVGA CLC 280 cooler

I dont think there is anything else that draws enough power to be important to mention.
And sorry for my grammar, not good with english, and my first thread here c:
 
Solution
My canned random reboot Rant
Random reboots are usually caused by the PSU, the RAM or software AND in that order of likely-hood.
PSU - If you can borrow/swap a PSU for testing. sibling/friend you can swap out the PSU and each system will be testing the other.
RAM - run the system with one stick of RAM see if stability returns if not Test all the RAM with memtest 86 for three passes or overnight. if you get no 0 errors after more than three passes the ram is good. with the random reboots I would suggest running this test after the PSU swap or after the PSU has been cleared.
Software - Drivers or other issues can cause reboots. Boot to a linux distro on a USB drive. mint linux will boot to memtest86. you can run the OS from the USB and...

R_1

Expert
Ambassador
My canned random reboot Rant
Random reboots are usually caused by the PSU, the RAM or software AND in that order of likely-hood.
PSU - If you can borrow/swap a PSU for testing. sibling/friend you can swap out the PSU and each system will be testing the other.
RAM - run the system with one stick of RAM see if stability returns if not Test all the RAM with memtest 86 for three passes or overnight. if you get no 0 errors after more than three passes the ram is good. with the random reboots I would suggest running this test after the PSU swap or after the PSU has been cleared.
Software - Drivers or other issues can cause reboots. Boot to a linux distro on a USB drive. mint linux will boot to memtest86. you can run the OS from the USB and await reboot.
end canned rant
 
Solution