Today is now tomorrow and before taking it apart I'm testing the
RAM with Memtest86 (currently on pass 3 no errors found).
If the RAM is fine I'll use crystal Disk to test the SSDs next, then if they are okay I'II completely delete BG3 and reinstall from scratch. I have previously verified the file integrity through steam and it found no issues, even cleared the cache in the APPDATA Larian folder.
Something I'm not seeing here and disassembly / new PSU is last resort will update when I finish testing on whether I can get it working.
Not entirely sure but I think Saving/Loading may be a trigger in there’s critical system error as I can usually replicate it by repeatedly quick loading/going to game main menu and loading.
