I really had a strange experience with my tbird.
Swapped out my old Abit BX6-2 with Celeron with a brand new A7V/850.
Fired it up, watched Windows hum along, and everything went fine.
Thought to myself, Let's install my SCSI drive. Bad Move. Windows crashes, GPF's.. wouldn't load anymore. "Uh oh!"
Time to reinstall windows (had no choice at this point). Wouldn't install, comes back with "MSDOS performed extended header fault" (or something to that effect).
After 2 days, I finally am like "Maybe its overheating!" (I didnt think that before because I was running perfectly fine before installing the SCSI adapter). Sure enough, that was the problem.
I promptly beat the golden orb and bought a 6035.
Moral of the story: Reinstalling windows may be a better option in the long run.