I posted a thread about this before but can't find it now. Issue is this. I have a ASUS P5Q SE/R MOBO, Intel P4 3.2 ghz, westgate 320 GB HD SATA drive. Running XP PRo. System was working fine for a while. Now when system gets to Windows boot screen, PC automatically reboots itself and continues to do this until power is turned off. I tried booting in all modes with same result. Also tried booting with just HD connected, got same result. It was suggested that I should try a Windows repair with disc. When I hit f3 to bring up the recovery console, it said that it could not detect the hard drive and to check power to HD etc.. I have no idea what to do next. Please chime in if u have a suggestion. Thanks.