I have my operating system on a 80 gig HD which is fine. Recently I got a new Power Supply and Grpahics card. I re-installed XP Pro Sp3. It's all working Ok But... Now I can not see my 500g HD in My Computer? (both Sata) It shows in Device Manager as Working Ok, and also shows up in Bios. Is there anyway of fixing this? Thanks
Is that a new Hard drive have you formatted it in disk management. run windows explorer right click on manage from context menu and then when in computer management select disk management.
Maybe you need a chipset drivers for your motherboard, which often has sata and pata utilities. Just a guess. I assume formatting your 500 GB drive is out of the question?