Strangest intermittent issue.

[AstroTurf]

So my home pc is resetting itself at random (turns off instantly, second or two later turns on again).

Sometimes minutes after logging in, sometimes hours, sometimes even days.

I have tried swapping the PSU, Checked the ram (mdsched) and even removed the chips one at a time.

Come to the conclusion either my ssd, gpu, motherboard or pci wifi card are to blame.

Anything else I should be checking or possibly a way to check the above without swapping them out?

I have spares for most parts but don't want the schlep of swapping out constantly...

 

[UrBaN963]

Not maybe shorting? Check for any loose screws or standoffs under the motherboard.

Have you monitored thermals?

 

[Ho3n3r]

1. Remove CPU, clear dust, clean CPU, re-apply thermal paste, reseat properly. Might be overheating sometimes due to old thermal paste/badly seated cooler.
2. Try different PSU.

That's where I'd start.

 

[AstroTurf]

Not maybe shorting? Check for any loose screws or standoffs under the motherboard.

Have you monitored thermals?

Yea Thermals all in good range.

I'll check if shorting but doubt it, been the same pc for years now...

 

[AstroTurf]

1. Remove CPU, clear dust, clean CPU, re-apply thermal paste, reseat properly. Might be overheating sometimes due to old thermal paste/badly seated cooler.
2. Try different PSU.

That's where I'd start.

Might be the cpu thermal paste, motherboard and all is clean (no dust) and already tried a different PSU, also, cpu rarely goes over around 65'c

 

[Ho3n3r]

Might be the cpu thermal paste, motherboard and all is clean (no dust) and already tried a different PSU, also, cpu rarely goes over around 65'c

If it doesn't even go over 65 when gaming, re-pasting and reseating will do jack.

 

[Ryder_JHB]

Check that the case's plastic power button is not dusty / sticking or somehow causing this. Have seen same thing before...

 

[AstroTurf]

Check that the case's plastic power button is not dusty / sticking or somehow causing this. Have seen same thing before...

Actually starting to think I have a swollen cap on the motherboard or something...

 

[AstroTurf]

Seems it was my PCI wifi card.