Computer randomly restarts.

May 16, 2018
2
0
10
My computer randomly reboots without warning, this happens regardless of load. The screen goes blank, then the bios screen appears. I have already run stress tests on my CPU and graphics card, I have also checked my power supply voltage using HWinfo, as recommended by someone on the forums, for someone with a similar issue. I have run the windows built-in ram test, all without any issues. I have checked event viewer, and I noticed that the error "Session "" failed to start with the following error: 0xC000003A" was occurring every time my computer crashes.

Specs
OS- Windows 10
CPU- AMD FX-4350
Motherboard- Asus m5a78l-m/usb3
Graphics card- GTX 1050ti
Hard drive- seagate firecuda 1Tb sshd (os drive) & WD Blue 1Tb hdd
RAM- 16Gb (2x8) Gskill Ares 1866 ram (clocked at 1600, because motherboard issues)
Power supply- CoolerMaster MasterWatt 650 (replaced Rosewill ARC750 to see if that fixed the problem)
 
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
May 16, 2018
2
0
10


Just finished running memtest 86 overnight, I'll use linux as my primary OS to see if the crashing continues, I had just replaced my PSU to address the crashes, so I don't think that is the issue.

**EDIT**
When I went to get some files I wanted to work on while using linux, the windows startup repair started, after booting into windows from that, it immediately said that my password was incorrect, even though the lock screen hadn't loaded. Because of that I'm going to reinstall windows.