Question Random reset, sometimes black screen GPU fans at full speed

Nov 13, 2021
Hey guys, I'm running out of hope, so any help is much appreciated!

At first my PC was randomly shutting down for about 3 to 4 months, I thought it was the PSU so I bought a new one and the problem kept happening. After some research I found out that a faulty case fan/rgb controller was causing a short circuit so I replaced it and it was good for a couple days, but now instead of shutdowns I'm facing 2 different situations:

  • Random resets
  • Black screen and GPU fans at full speed after a couple minutes playing any game or 3d modeling (sometimes right after I fire up the game)
What I already tried:
  • Replacing PSU (from 1000w to 1200w to 1600w)
  • Different wall plugs (even tried another apartment)
  • Replacing GPU (2080ti to 1080ti to 3090ti)
  • Memtest (all good)
  • removed all USB cables
  • removed PSU cable extenders
  • reinstalled Windows (from 10 to 11 then back to 10)
I really don't wanna buy another mobo or CPU because they're pretty expensive and now it's kinda hard to find, so I'm taking any suggestions!

Threadripper 3970x
ROG Strix TRX40-E Gaming
ROG Strix RTX 2080ti
G.Skill Trident Z Neo DDR4 64GB 4X16GB 3600MHZ running at 3000mhz
AIO Thermaltake Floe Riing RGB 360 TR4 Edition
The case is the CM C700M

I also have some spare parts if you want me to try out replacing something ᕙ(⇀‸↼‶)ᕗ

Thank you in advance!