I've been working with Seagate tech support to try to get my 120GB SATA drive to work correctly. The drive is a Seagate ST3120026AS SATA drive connected to a Chaintech 9VJL5 mobo with onboard SATA controller. The problem is that the drive is only detected when the system is booting from a hard power off. If you ctl-alt-del the system, hit the restet switch or reboot via Win-XP shutdown command the drive is not detected. As soon as you power off and power on the system the drive detects. I'm starting to suspect a mobo problem since the PS/2 mouse port failed a couple of days after I installed the board and started using it. I figure this has to be a problem at the hardware or BIOS level since the OS doesn't necessarily have to be invoked to see the problem at work. I've tried tweaking every setting imaginable in the bios including disabling quick self testing, changing SATA mode from IDE to RAID and back, removing all other devices from the system except the SATA drive and video card, etc. I've been through all the BIOS settings that would apply to power cycling the machine, the SATA controller and the IDE controllers. I've checked Chaintechs website and loaded the latest BIOS (9/30/2003). Seagate tech support seems very responsive but their advice has been time consuming and has not solved the problem. Chaintech's tech support has not responded (72 hours and counting) with so much as an automated reply. I've spent hours scouring the internet for a similar problem, but I haven't seen anything. Any suggestions would be appreciated.