Computer keeps freezing

[Shadowdust]

Anyway, what happens is that I will start hearing a quiet sound coming from the direction of the hard disks. When this happens I look at my HDD led light and it remains a solid red. Next thing I know, my computer completely freezes. At first I checked the error log and it said that there was a disk error and that the event code was 11 which gives the description: The driver detected a controller error on \Device\Harddisk0\D. So I look it up and the article suggested replacing the cables. I did that, and it is still having problems.

I've noticed even an ever so slight movement of the power connectors to the hard disks leads to that sound.

So does anyone have any idea what's going on? Am I going to have to get a new power supply or is the problem elsewhere?