I have a problem with my ASUS P5Q recognizing my Hard drive. It is in Bios but not at boot-up. I tried everything, incl. changing sata position, some Bios advises and trying another HDD with this board. There was a hint to reinstall the Windows on the HDD as I had my HDD from the previous PC. If this helps to solve my issue, thanks God, but I think it is just crap not to recognize your HW if it is shown in Bios.