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Troubleshooting
2-3
If you are running Diagnostics from a diskette, complete the following steps:
a. Insert the Diagnostics diskette into the diskette drive and turn on the computer.
b. At the Welcome Screen, press Enter to accept OK.
c. Select Computer Checkup (TEST).
d. Select Prompted Diagnostics after "Identifying System Hardware" completes.
e. Select Interactive Testing and follow the displayed instructions.
Refer to Chapter 3 for the description and spare part number of the loopback plugs.
After completing the preliminary steps, run POST (Section 2.3) and Computer Checkup
(Section 2.5).
2.2 Clearing the Power-On and Setup Passwords
The power-on password prevents use of the computer until the password is entered. The
setup password prevents unauthorized changes to Computer Setup. To clear the
passwords, you must remove all power from the system board. If you do not know the
passwords, use the following procedure to clear the password:
1. Remove all battery packs from the battery bay and DualBay, if applicable.
2. Disconnect the AC power.
2. Remove the real time clock battery.
4. Wait five minutes.
5. Reconnect the AC power.
6. Restart the computer. During the Power-On Self Test (POST), a "162 System
Options not Set" message appears. (See Section 2.4 for additional POST error
messages).
7. Shut down the computer, then turn off the power again.
8. Replace the real time clock battery.
9. Install the battery pack(s).
10. Proceed with the troubleshooting procedures.