Sounds good - I'll check for BIOS version update next.
So I ran memtest86 and no errors after 2 passes. I did notice my memory by default is running at almost 4700 MHz. Could that be causing issues? Should I consider lowering the speed below the default? Reading up on the Ryzen 9 specs it looks like if I have 4 sticks I shouldn't be running faster than 3600 MHz.
https://www.amd.com/en/products/cpu/amd-ryzen-9-7900x#:~:text=vary by manufacturer.-,Connectivity,-System Memory Type
I'll try reducing that and see things stabilize