Hi. This is the first time i've posted for help. I just built a computer and the bios will not detect my hard drive. I have a Gigabyte GA-880GA-UD3H motherboard, AMD Phenom II x4 955 black edition processor, WD Caviar Blue WD5000AAKX 500gb hard drive, Gforce GTX 550 ti graphics card, G.Skill Ripjaws X Series 8GB memory, Cooler Master HAF 912 Mid Tower ATX Case. I've tried to install Windows 7 and Windows XP but neither detect the drive and it doesn't show up in BIOS. Can anyone help?