Question Pc randomly crashes and doesn't boot

Absolute.Red

Commendable
Jun 17, 2020
33
2
1,535
I've been having these weird crashed recently and after the crash i turn off the machine by removing the power and then when i try to boot, it does nothing. The fans just keep spinning and no image on screen.
But if i leave the system powered off overnight, it turns on fine and work for couple of hours and crashes again.
Anyway i checked the window error reports and found memory error.
So i checked with memtest and found 0 errors.
Now i think maybe its cpu.
Any ideas?