[SOLVED] Custom Pc Build randomly Restarts

[Heyitsalex]

My current build- Just recently built it https://pcpartpicker.com/list/W2TD6s
So, my custom pc randomly restarts. It occurs more often during gaming sessions, but sometimes will randomly occur during light web browsing. It will randomly restart no error message or anything and just boot up. So far Ive completely replaced my power supply, replaced stock cpu cooler with after market air cooler. Ive updated my bios, windows, and I've also done memtest86 and it came back clean.
I've also done gpu and cpu stress tests which I made a quick video here to show what my temperatures were during testing

View: https://www.youtube.com/watch?v=mskXUE77w0s

My temps don't seem to be high enough to be concern. My cpu tests would cause the pc to restart quicker 1-5 minutes compared to the gpu tests 5-10, but both would lead to my pc restarting. I'm lost on what I could do know or what the issue could be. Possibly faulty cpu? Anything helps!

 

[Cem Goker]

Temps do look fine, infact really good from stress testing both for the CPU and GPU. I possibly suspect the PSU could be defective. You could also try reinserting the cables from the PSU to the motherboard and test again which could also help. If that still didn't work then try swapping out your current PSU with a spare one if you have any and run the same test to check if that is the case. If not, it could be the motherboard next. If you have any cheap B450's lying around, then try swapping those after you try the PSU. Before you any of that though, may I ask what aftermarket CPU cooler you are using? It wasn't in the pcpartpicker list. Really nice build by the way.

 

[Heyitsalex]

Temps do look fine, infact really good from stress testing both for the CPU and GPU. I possibly suspect the PSU could be defective. You could also try reinserting the cables from the PSU to the motherboard and test again which could also help. If that still didn't work then try swapping out your current PSU with a spare one if you have any and run the same test to check if that is the case. If not, it could be the motherboard next. If you have any cheap B450's lying around, then try swapping those after you try the PSU. Before you any of that though, may I ask what aftermarket CPU cooler you are using? It wasn't in the pcpartpicker list. Really nice build by the way.

Thanks for the reply! Ive already switched out the psu and the problem is still occurring. I didn't think about the motherboard so Ill definitely try using another one. But this is my aftermarket cpu cooler https://www.amazon.com/Scythe-120mm-Cooler-LGA1151-Towers/dp/B07RFNG89S
What do you think?

 

[Cem Goker]

Thanks for the reply! Ive already switched out the psu and the problem is still occurring. I didn't think about the motherboard so Ill definitely try using another one. But this is my aftermarket cpu cooler https://www.amazon.com/Scythe-120mm-Cooler-LGA1151-Towers/dp/B07RFNG89S
What do you think?

That is an excellent CPU Cooler and its more than capable of handling that beastly CPU of yours. Have you also checked your wall outlet? That could be another cause. Try powering up your PC on another wall socket and give your stress tests. If your PC still has issues, then we have narrowed down your issue to the motherboard or CPU. Let me know once you do swap your motherboard. Also do check if the motherboard you will pick for testing comes with an updated BIOS out of the box. Some of them don't so you might have to end up using a 2nd gen Ryzen just to update it before putting your 3700X back.