I've done many methods for this problem. -Disconnect each drive and try one at a time -Use new ribbon cable -Switch from CS to MASTER on HARDDRIVE The last method I have done was, resetting CMOS through jumper. Did the usual method and booted PC. Voila! It worked. So I shut down the computer and boot it back up. I am now stuck on BIOS again while Detecting IDE Drives. Also, I hear a clicking sound from the PC. What's going on?