I’m hoping it’s not my CPU, I’m going to be pretty annoyed if it is. I believe it’s either CPU, motherboard, RAM, or software related since the GPU and PSU have been upcycled from Xeon where they never had a problem.
For now though it’s about 10 hours into Memtest. Assuming no errors it’ll be onto Prime95 for a day or so.
Probably just Windows being stupid per the norm.