i have an athlon xp 2200+ with an asus a7n8x deluxe, i recently installed an slk800. it ran fine, the following day my case got knocked over on its side while it was running and the computer froze. now i can go into windows and do some things, but whenever it uses 100% of the cpu the computer freezes and or restarts, i cant reinstall windows for that reason as well, what could be the problem?