5.Did you install a hard disk drive that has its controller on an option card? If so, and if your computer came with a hard disk drive that you are no longer using, be sure the cable leading from that drive to the main system board and the hard disk drive power cable are disconnected.

6.If you used the option card to add an external device to your computer, did you use the proper cable to connect the device to the option card connector on the back panel?

7.Did you perform the correct setup procedures for the software you are using with the option card? If necessary, see your software manual for instructions on running the software setup procedure.

M o u s e P r o b l e m s

If you are having a problem with your mouse, you may see one of the following error messages:

0 8601 Auxiliary device failure

0 8602 Auxiliary device failure

D 8603 Auxiliary device failure.

If you see one of these messages, make sure that the mouse cable is securely connected to the mouse port and not the keyboard port. See Chapter 1 for more information.

A-26Troubleshooting