So I have installed windows 7 64 bit on a hard drive that is plugged in through the IDE port. The optical drive and the other two hard drives are plugged in through the SATA ports. The Bios recognizes all of the drives but when I try to boot the OS it wont boot. When I unplug the other two hard drives the OS boots just fine. In the Bios I have the IDE hard drive set as the primary drive to boot and the other two as the second and third . I am wondering what I need to change so that the OS will boot from the right hard drive and the other two will be storage. Let me know if you need anymore info to help me solve this issue.