PC randomly restarting - help!

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Radioboy

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Hi y'all.

I need some advice.

The other day I did a clean install of Windows 10 on my SSD and also added another HHD to my rig.

Now all of a sudden my PC would randomly restart. The fans and everything would stay on - but the PC would reboot. Sometimes multiple times in a row.

There is no pattern though. Sometimes it is during gaming and other times its during normal web browsing. Windows event viewer doesnt give me much to go on - apart from saying that the PC wasn't shut down properly.

I have reinstalled all drivers and done every malware scan known to man.
Several Memtest86 passes found no errors.
Temps look good.
I checked all slots,cables and everything looks ok.

Specs:
Win 10 Pro
I5 3570k & Aftermarket air cooler
GTX 1070
24 Gb DDR3 Ram at 1600mhz
1 Tb SSD
250 Gb SSB
5 Tb HHD over 3 drives
No optical drive
620 80 Bronze+ PSU
6 case fans
Everything running stock speeds

Something is dying, im sure. My first thought would be the PSU - but can it be seeing as my PC restarts even when sitting idle ?

Any ideas ?
 
Have you tried removing the new HDD as seeing if it still happens?

I agree that it's unlikely to be the PSU. That would normally cause a restart when starting to game.
Can you remove one of the dims in turn to see if that makes a difference?
 
Disconnect all the hard drives leaving only the boot ssd and see what happens. psus do degrade over time and you just added another drive to the psu load.
 
ponder said:
Disconnect all the hard drives leaving only the boot ssd and see what happens. psus do degrade over time and you just added another drive to the psu load.
Click to expand...

Wouldn't a bad PSU cause the PC to shut down and not reboot?
 
Could be the house power supply, takes a dip and then the PSU falters just enough for that second.... if you are on a UPS check if the batteries are still in good condition since bad batteries make a UPS simply a heavy multi-plug. Had the same thing years back, simply putting the PC on a different power circuit might also do the job but.... get a good UPS anyway.

Alternatively it could also be one of the enhancement (lights, overclocking, fan speeds, etc) apps that came with your GPU, tried one once (just installed not even opened once) and it left my PC in a boot loop until I removed it.
 
Last edited:
9 times out of 10 when you are having power issues it's the power supply. At this point it doesn't matter what pushed it over the reliable mark, like adding a hdd, it's gone past the point where you can trust it, so rather replace it.
 
Honey Badger said:
I think it could be heat
Click to expand...

At this time of the year, winter is generally much more computer friendly heat wise ;)

PSU likely, not that adding a HDD to system would increase the power draw all that much, PSU's are strange beasts even a minor draw is enough to cause issues, even when idling, there could be increase draw when a fan starts up or HDD spins up ect.

What some times helps is switching power connectors around or distribute rail load equally, not sure how many PCIe power connectors that GPU has or the PSU my best guess would be two 6pin connectors on the GPU and only one on the PSU ?
 
Thanks for the replies everyone.

So far I have ruled out:
RAM
The GPU
Heat
The HDDs
Power supply of my house
Case fans

It leaves me with the motherboard, PSU, CPU and cables, Windows and the SSD it is on.

The struggle continues.

Thanks again.
 
Radioboy said:
Thanks for the replies everyone.

So far I have ruled out:
RAM
The GPU
Heat
The HDDs
Power supply of my house
Case fans

It leaves me with the motherboard, PSU, CPU and cables, Windows and the SSD it is on.

The struggle continues.

Thanks again.
Click to expand...

---------

My PC did the same, randomly it would restart and all the fans would ran at full rpm... all going mad, I would turn it off for a few minutes and then try again.. no probs... it drove me up the wall because all temps were perfect etc, just a brain fart.

I bit the bullet and changed my PSU to a brand new 650w super flower from Wootware, problem solved :) and the power supply runs perfectly silent as well. A PSU doesn't last forever, it will just start to die or wires corrode inside etc.
 
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