Not sure about the cause of IMC test failure but have you tried the older version of Intel Processor Diag Tool to see they give consistent readings? Apparent some say the Diag Tool itself is the problem. 🤔 Others suggest bios update …
Just keep backing up your data in two external hds in case one fail.
Have a laptop as backup for your work.
Well, long story short my PC cannot be switch off for more than 8 hours as it will give me BSOD after that but will fix it self after several days. Also if I check my system hd I always have the triangle warning. Never managed to solve it after so many years. My PC is about 8 yr old now. Otherwise my computer is perfectly fine but I never switch it off. 😒