I am doing some work on a friends computer and I need some help diagnosing what the problem is. It is a SystemMax computer with a Biostar P4M800-M7A mobo and a pentium d processor. The power supply unit is ruined and I test it with another from mine. The hard drive is good, RAM is ok, I tested both of them in my computer and they run great. The computer powers up and gets through the grub loader, I select to start Linux Mint and it either freezes, gives me a "cpu temp threshold" error msg or it gives me a "cannot sync" error. How can I tell if it is the mobo or cpu? I feel like I have done enough trouble shooting to isolate it to either of those but if anyone has any other ideas they are welcome.