I could not find a forum for this Dell Precision 690 tower, OS Win 7 Home 32 bit. My room mate told me that his USB mouse wasn't  working. While investigating the mouse problem. I found a "low bios battery voltage" warning on the top of the screen. To this point windows was working fine except for the mouse. I shut down the tower and replaced the bios battery, and fired up the tower. Now the tower won't get past the bios screen. The bios reports everything is fine except for the following items are missing:

The hard drive

The optical drive

The USB ports

The network controller

and the floppy drive

What gives?

 

Steve