I've made a previous post here about a machine check exception error I get about twice a week. I have tried many things that one would suggest doing to troubleshoot this issue (memtest, bios update, bios reset, temperature tests, storage tests, PSU voltage analysis, windows reinstall) and the crashes still occur. However, it was just brought to my attention that my motherboard (which is an ASUS Z390-A on bios vers. 1201) does not have my CPU (which is an Intel Core i5-9600K) on its compatibility list on the ASUS website. This confused me however because I've seen bundle deals on amazon with this same combination. Could this be the cause of these occasional MACHINE_CHECK_EXCEPTION 0x0000009c blue screen errors, and if so, should I switch to a CPU on the compatibility list?