PC randomly powers off after overclock

mxknight77 · Dec 24, 2015

First I'd like to mention I've read around the forums about similar issues, but I didn't find the exact same problem or a solution to it. I've checked my power settings in windows 10 and my pc should never shut off. Secondly I have my i5 3570k overclocked to 4.7 ghz and my ddr 1600 ram overclocked to 1866 with the timings slacked a little bit. I've ran memtest and I've received no errors. I've also ran prime95 for 6 hours straight and my computer never crashed. CPU temps went up to 88C at the highest but stayed at 80 on average. It just seems to randomly shut down whenever I do no use it. Any thoughts on the matter? I also have a 750 watt power supply with a non overclocked GTX 750 ti so I know for a fact that I shouldn't be having power issues.

Mac070 · Dec 24, 2015

Don't Overclock It might have better performance. In the long run , it degrades the time / life span of the chip . It also voids warranty

BadActor · Dec 24, 2015

I would say the you either need to try dialing your overclock down or test the PSU. What are your system voltages?

mxknight77 · Dec 24, 2015

BadActor :

1.295 vcore
1.5 vram
Level 1 LLC
All the other voltages are set to auto

BadActor · Dec 24, 2015

What are the 12v+, 5.0, and 3.3 voltages?

mxknight77 · Dec 24, 2015

BadActor :

Not sure if you're asking for this.
+5V@24A
+3.3V@24A
+12V@62.4A

This is the PSU

BadActor · Dec 25, 2015

Those are the rated voltages, I'm looking for the actual voltages. Download and run Speccy, it should give you these voltages.

https://www.piriform.com/speccy/download

i just want to see if anything is amiss with the PSU. More than likely you just need to drop down to 4.5/4.6 on your overclock and see if your stability returns.

Sergeant_Sneaky · Dec 25, 2015

If the overclock is unstable it should bluescreen, this is why I believe the PSU is struggling to power your system with the extra requirement from the overclock. Which brand/model is the power supply?

mxknight77 · Dec 25, 2015

BadActor :

Sorry, I don't see those.
Here's an image showing you the voltages of some things I could find.

I have a strong feeling lowering it to 4.6 or 4.5 will fix the issue. I keep thinking just because it's fine on a stress test it's stable. Still not use to my PC just randomly powering off instead of a BSOD or freeze.

Thanks for the help I'll post if my system stays on through the night at 4.5 ghz or not.

BadActor · Dec 25, 2015

What makes me suspect it's the overclock is that your temperatures are rather high. Try lowering the overclock and see if the problem goes away.

mxknight77 · Dec 25, 2015

Sergeant_Sneaky :

It's a 750w EVGA Supernova 2. The only other thing I can see being heavy on the power is the GPU. Mine only uses 60 watts of TDP so I should be good in that aspect.

mxknight77 · Dec 25, 2015

BadActor :

4.6 ghz still had the PC randomly shutting down.
4.5 ghz did the trick. Kind of a bummer tho because I feel like the cpu is capable of more. It only gets to 68 C worst case scenario after 6-8 hours of P95. I also only need the voltages at 1.21 to run it at 4.5. Thanks bad actor.

BadActor · Dec 25, 2015

Your welcome. Don't feel bad though, 4.5 is still very respectable.

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