I just got myself a Gigabyte GA-965P-DS3, and I installed a Western Digital SATA hard drive for the main drive, with a Seagate SATA drive for backup. They are both hooked up to SATA connectors on the board (the orange ones closes to the memory, if that matters). I got the system up and running, using my old Pioneer DVD-106S DVD-ROM drive to install software, but when I added the second hard drive, I lost the DVD drive. It still shows up in BIOS, but I can't get it to work in Windows XP Pro. To be clear, I built the system with only the WD hard drive, and then I added the second hard drive later. The DVD is on an IDE cable, all by itself. The jumper is out of the back; can't find info on where to put it. I want this thing to be the master IDE drive, and I want to put my old Lite-On CD burner on the same cable as a slave. Any idea what I did wrong, other than thinking I could upgrade my own PC?

I have also had windows not report my second hard drive in the past. I went into control panel-administrative tools-computer management.Then click on disk management in the left menu. If you scroll the page to the bottom right, you may see some un-assigned space, that is your hard drive. Just right click on it and you can assign a drive letter, disk type and format it from there. P4 3.0 HT 800mhz FSB Asrock P4I65G M/B 2 x 512mb Kingston Value DDR 400 Dual Channel 80GB Diamondmax9+ SATA 160GB Diamondmax10 SATA Club3D GeForce6600 256mb SumVision 450W PSU/+12=21A

Oops, sorry. I totally mis-read the question. I thought you had "lost" your hard drive. Does it still show in device manager? You could still take a look in disk management, maybe it just needs a drive letter? P4 3.0 HT 800mhz FSB Asrock P4I65G M/B 2 x 512mb Kingston Value DDR 400 Dual Channel 80GB Diamondmax9+ SATA 160GB Diamondmax10 SATA Club3D GeForce6600 256mb SumVision 450W PSU/+12=21A

Thanks for the reply. The hard drives work fine. It's the DVD-ROM and the CD burner that don't work. I'm pretty sure it's a motherboard thing, since I can get the DVD or the hard drives to work in DOS, but not both.

I don't think it is a "motherboard thing" as it is ok in the bios and it's only windows where it's messed up. Does in show in device manager or computer management? P4 3.0HT 800mhz FSB Asrock P4I65G 2x512mb Kingston Value DDR400 Dual Channel@2.5-3-3-6 80GB Diamondmax9+ SATA 160GB Diamondmax10 SATA Club3D GeForce6600 256mb @ 375/500 SumVision 45

It shows up as installed, but Windows claims the driver, which worked yesterday, is corrupted. Same for the CD burner. Uninstalling doesn't help.

Try a repair install of XP. P4 3.0HT 800mhz FSB Asrock P4I65G 2x512mb Kingston Value DDR400 Dual Channel@2.5-3-3-6 80GB Diamondmax9+ SATA 160GB Diamondmax10 SATA GeForce6600 256mb@375/500 SumVision 450W +12/21A