[SOLVED] Upgraded high-end system. Crashes while gaming under good temps

[roeliekt]

Recently I upgraded my old system with a new CPU, motherboard and case. Unfortunately since then I have been having issues while gaming. Mostly after 10-45mins the PC instantly powers off and automatically restarts after a minute or so. The power button is unresponsive during this minute. Temperatures are pretty good, CPU sits at 40°C and GPU around 50°C. My guess would be problems with the PSU, but it was working fine in the previous build a while ago (never had crashing issues back then). The only change that I'm not sure about is the 8 + 4pin connector for the CPU. At first I added an extra cable to the PSU and connected them both. I read mixed results about the second 4 pin not being required so I tried both, but the PC crashed in both cases.

	Old specs	New upgraded specs
Motherboard	ASUS Z170 Pro Gaming	MSI Z490 Gaming Plus
CPU	Intel i7 6700k	Intel i7 10700k
CPU cooler	Scythe Mugen 5	Corsair h115i RGB Platinum
GPU	RTX 2080 TI 11gb Extreme	RTX 2080 TI 11gb Extreme
Memory	Corsair Vengaence LPX 2x16gb (3200)	Corsair Vengaence LPX 2x16gb (3200)
Storage	Samsung 960 EVO 500gb m2 and a bunch of random HD's	Samsung 960 EVO 500gb m2 and a bunch of random HD's
PSU	SeaSonic M12II EVO 850W 80+ Bronze	SeaSonic M12II EVO 850W 80+ Bronze
Case	Antec p100 (or another similar version)	Corsair Obsidian 750D Big Tower

While upgrading the PC I re-used the (m2) drives, PSU, GPU and RAM from my old setup. At first I just booted my old startup disk and tried installing the new drivers. It worked but got me the same crashes. Now I'm on a clean install with updated drivers & windows and am still having the same results.

I checked all the cables, graphics card & ram is seated correctly. The only thing I can think of is that the PSU cannot handle the new CPU/motherboard/CPU cooler (with xmp enabled)? But I'm at a brick wall because I think 850w should be good enough right? Is there anything else I can try or check before getting a new PSU?

Thanks a lot for taking the time to read this!

 

[Phaaze88]

Common causes of sudden shut offs/restarts, and what you can do about them:
1)Missing or corrupt Windows drivers
A)Make sure PC is clean - run antivirus and antimalware programs.
B)https://support.microsoft.com/en-us/help/4026529/windows-10-using-system-file-checker
C)Reinstall Windows - especially after changing motherboards

2)Memory failure
A)Memtest86 free version: https://www.memtest86.com/
It does take a few hours, so run it overnight.

3)Insufficient power supply
That's an old platform from 7-8 years ago. 5 year warranty. It was great budget unit back in the day - it's 'meh' now.
A)Replace it. That's all you can do here.

4)Overheating power supply - it refuses to turn on for a set period of time
Either due to fan failure, or the loads are simply too much for the internal components to deal with anymore...
A)Same as number 3.

 

[roeliekt]

My PSU was indeed getting quite warm so I replaced it with a newer 850w unit. Been running great so far, thanks alot Phaaze88!

 

[Phaaze88]

You're welcome!