On 4/3/06, jim scott <jimdscott at gmail.com> wrote: > I have a four month old SATA HD in my FC 4 system. A few days ago I > installed an IDE HD that a friend couldn't use any more. Since then, my > system has been very unstable. The system spontaneously reboots and leaves > me at a boot up screen with a message saying it can't find my SATA drive. > > I changed the bay on my SATA drive during the install, so I checked the > power and SATA cables. Those both looked good, but I reseated them both to > be sure. Are there any system messages that I should look for? Any other > potential traps when adding an IDE HD to a system? Thanks for any clues. If the motherboard doesn't turn out to be the problem, it would probably be worth installing the smartmontools package. It will allow you to check the internal SMART attributes of the drive - you can usually spot a failing drive by doing this.