Greetings!
I'm getting random reboots since I built my PC on 2020 and never managed to fix it. The only clue that I had was "Cache Hierarchy Error" from windows event log
I tought my problems would end after I RMA both CPU (Ryzen 5 3600) and GPU (RX 5700 xt). I got a refund from the CPU, from which I bought a Ryzen 7 5800x3d, and the GPU was fixed (the report said it had a corrupted BIOS).
Surprisingly I'm experiencing the same problem.
My specs:
-MSI Bazooka v2 B450m
-AMD Ryzen 7 5800x3d
-AMD RX 5700xt
-Crucial Ballistix 2x8gb, 3000mhz BL8G30C15U4B
-PSU XPG 650w 80Gold
Troubleshooting:
Mobo BIOS is up to date, so is the chipset and gpu drivers.
Clean Install Windows.
Set the RAM timings manually
I did some stability tests with OCCT (CPU and RAM) and returned 0 erros
PS.: sorry about the mistakes, english isn't my native language