if it is the dual channel (its been a while ,now i have the tekram) i had problems burning on the 50 pin channel w/ the adaptec, when it was oc,d. The tekram controller has been great to me.
how out of spec is the pci slot?
if you are a chronic and hopeless oc'er, you are better off w/ a scsi set up. I have had system Smashes w/ide and raid arrays hard drives.
all the rebooting while testing Ect. But w/ the scsi system-KNOCK ON WOOD- i have never had a smash.