I have an XP machine that I'm working on. The thing is stuck in a restart loop.
Running a hardware test revealed that the firmware failed the ACPI tests. This is Eurosoft PC Check.
Trying to boot into safe mode, it gets to agpCPQ.sys before it crashes.
I booted a live CD. When it tried to change the screen resolution, it crashed and restarted itself.
FX-8350 @ 4.7 cooled by H80, 32GB Mushkin Enhanced Blackline 2133, Asus Sabertooth 990FX, 2x Radeon HD 7850 2GB in X-fire, 500GB Samsung 850 Evo, 4TB Seagate, 3TB WD Black, 2x 1TB WD RED in RAID 0