Hi, I have a very old P2 400 PC, and I had an IDE cable connected to the Primary IDE connector on the mobo, and the cable does not connected to any devices, and my PC won't POST up, all I got is a blank screen. IF I remove that cable, my mobo would boot up to the point where it find there is no OS. Is this means I have a bad IDE cable or bad IDE connector on the mobo? or in another word, does the IDE cable on the mobo need to connect to some device? Thanks in advance!