BIOS not detecting hard drive

[asv2026]

I had a fully working system running of a Hitachi ATA hard drive. I was running Ubuntu. On one bootup, the terminal window was not coming up so I rebooted the machine. After that, my hard drive is not being detected in the system, even by the BIOS. I tried switching data and power cables but no success. Anyone know a way to fix this?

Thanks.

 

[ncc74656]

does the HD spin up? can you hear the heads tracking? if so then it must be an issue with the ports or controller. if it does not spin up then its a dead HD and from there it becomes very complicated