I have an A7A266 with a 1.33 o/c too 1510...Everything was working fine until i tried a procedure mentioned by someone in the forums to adjust irqs (it involved changing the comp in device manager to standard computer apposed to ASPI) Well that never worked...so i changed it back...when i came back my cd drives (2 scsi plextors connected to a 2930C card) wouldnt work right...They would not autostart a cd and i couldnt burn a cd...also i couldnt boot to a cd, it seemed like it could only read or write to the first part of the cd. So i formatted figuring thats gotta fix the problem....installed everything again...still same problems..So i tried the scsi card in another comp...and it works fine...anyone have any ideas what it could be???