You have Bios issues if your getting any exception_not_handled messages.
you might also have a bad drive.
if it was MB/ram/cpu you'd get a BlueScreen with something or other like
STOP: 0x0000009C (0x00000004, 0x00000000, 0xb2000000, 0x00020151) "MACHINE_CHECK_EXCEPTION"
Thats when you know you smoked the MB/CPU/or RAM... hehe
http://support.microsoft.com/?kbid=314451
http://support.microsoft.com/?kbid=161703
http://www.microsoft.com/technet/tre...d_stp_oweb.asp