Windows 10: Pc shutdown. Psu or cpu issue?

Hi i have had random bsod issues relating to ntoskl.exe even while browsing. I was advised to do memcheck but it causes shutdown after about 3 minutes running the memtest(memory diagnostic runs fine). I have removed/swapped the ram etc so dont think thats the problem plus im sure this would come up with errors rather than a shut down. I therefore think its either cpu overheat or the psu. Can i test the psu without buying an expensive meter? The cpu seems to run at 45-50 in bios and 30-50 whilst browsing via heat monitor so not sure will be that...

Any help would be great. Thanks

:)

 

PC is Suffering Unexpected Shutdowns

Most important detail to me would be whether these shutdowns are sudden, in which case it's likely a short or PSU issue (capacitor aging maybe?) or graceful windows style shutdowns, which suggests software interference.

It could also be overheating components if it's a sudden shutdown. What are your thermals like?

 

PC is Suffering Unexpected Shutdowns

So its been almost two weeks since i last posted and since my PC has shutdown unexpectedly... My original plan was to play around with the RAM to see if that was the issue but after a few days of no shutdowns i figured i would see if the CMOS clear and repairing the corrupt OS had fixed the issue. As i already said its been almost 2 weeks since i first made theses changes and i was fairly certain it had fixed the issue...Unfortunately my PC did shutdown unexpectedly today while i was at work. It seems pretty ridiculous to me that the PC could be on for almost 2 weeks straight and have no issues then just randomly shutdown...I ran the SFC scan to make sure nothing had gone wrong with the OS and it reported no issues. My next step i guess would be to try and eliminate the RAM as the issue but honestly i find i very hard to believe that's the issue after the PC was on for 2 weeks. Surely if this was a hardware issue i would have more regular shutdowns...or at least shutdown while im actually using the PC...What do you guys think?

 

Hard drive/ OS issue

a guy suggested :

• shutdown
• unhooked HDD
• restarted
• yay !!
• reconnected HDD
• restarted
• yay !!

also , try method 3
Fix: 'The Drive Where Windows is Installed is Locked'