|This is what dell says, of course it is utterly useless, but you may want to reseat all the cable in the computer. |
Ensure that the cables are properly connected to the system board from the hard drive, CD drive, and DVD drive.
Check the computer message that appears on your monitor screen.
If the problem persists, contact Dell.
With dell saying that you need to check the cables, it sounds like it is some sort of IO error. This leads me to think that your hard drive maybe spinning down do to a lack of power. You may want to take you power supply out, open it up, unplugged of course, and have a look at the caps in there.