I'm trying to put together my old computer and got a used mobo and am having a lot of problems relating to the hard drives. My latest problem is that I have connected an old 10GB IDE hard drive that I know works, and the BIOS won't recognize it, and will only *sometimes* recognize my other 60GB drive. But on this old 10GB drive I successfully installed OpenBSD 4.0 on it, yet can't use it because for some reason the BIOS can't find it. What can I try to fix this problem?