Mystery Freezing/Crashing

[voidbugz]

I'm at my wit's end over my computer "randomly" freezing. This started in March and has gotten more and more common as time goes on. I've been keeping a log of the freezes and there doesn't seem to be a trend. Sometimes it only partially freezes (I can still use ctrl+alt+del but the task manager won't open, the Win key still works) and sometimes it completely locks up. Sometimes the audio goes out about 5-10 minutes before it freezes, sometimes there's no warning, sometimes the audio loops while the computer is frozen. Sometimes it happens while I'm gaming, other times it happens when the PC is sitting idle (literally while I'm asleep). No matter what the only way to unfreeze it is to manually power down my PC. At this point I just feel like my PC is cursed. Please let me know if I've just overlooked something stupid (I hope I have) cause I'm pulling my hair out over here. 

 

Fixes I've tried:

-reinstalling/uninstalling most of my software (short of a clean install of Windows, which I plan to try tomorrow)

-cleared temp files

-updated my BIOS/drivers

-ran DDU on NVIDIA drivers in Safe Mode

-disabled/enabled NVIDIA High Definition Audio (froze regardless)

-physically cleaned my PC (twice)

-cleaned and reseated my GPU

-ran a full 4 passes of MemTest86 (no issues)

-ran SFC /scannow, DISM /Online /Cleanup-Image /CheckHealth, DISM /Online /Cleanup-Image /ScanHealth and DISM /Online /Cleanup-Image /RestoreHealth (no issues)

-disabled Steam friends notifications (found a weird bug from the steam friends service that causes RealTek to crash your PC)

-disabled xBox Game Bar

-benchmarked both my drives with Samsung Magician (both are healthy)

-checked my thermals (CPU doesn't break 65-66C under load, idles between 35-45C, GPU never breaks 70C under load, idles between 33-40C)

-cleaned and reseated my reservoir

-disabled Global C States

-enabled/disabled A-XMP (froze regardless)

-changed power plan (crashed on Balanced and High Performance)

 

At this point Google only directs me to useless MS help threads or to vague articles that say my computer is freezing because something is wrong. The computer is just about a year old (built in myself last March) and every piece was bought new. Nothing is overclocked, just running straight out of the box.

 

Build:

CPU: AMD Ryzen 5 3600

Cooler: NZXT Kraken X63 280mm

GPU: MSI GTX 1660 Super Gaming X

RAM: Corsair Vengeance RGB Pro 3600 16GB (2 sticks)

MOBO: MSI B450 Tomahawk Max

PSU: SeaSonic Focus GM-650 (80+ GOLD)

OS: Win10 Pro, Version 20H2

Storage: Samsung SSD 970 EVO Plus 250GB (main drive), Samsung SSD 860 EVO 1TB (games storage)