I've recently added an extra hard disk via a rack. It now has a total of 4 hard disks - one housed in an internal rack in a 5 1/4 drive bay.
The PC was working fine until I was forced to do a hard reset. The PC had frozen once before when it had 3 internal disks and no rack but for no reason it did bootup again eventually after many attempts.
I've now removed the hard disk in the rack but the rack is still fitted but this has had no effect. Also, I've reset the motherboard via its jumper and removed its battery but again the bois is still 'stuck'.
What should I try next?