4-22
Diagnostic Tools
Diagnostic Error Codes
Diagnostic error codes occur if the system recognizes a problem while running Diagnostics
utilities. These error codes help identify possibly defective subassemblies.
The following tables list possible error codes, descriptions of each error condition, and actions
required to resolve the error condition. For assistance in the removal and replacement of a
particular subassembly, see Chapter 3.
NOTE: Retest the system after completing each step. If the problem has been resolved, do not
proceed with the remaining steps.
If you encounter an error condition, complete the following steps before starting problem
isolation procedures:
1.
Ensure proper ventilation. The workstation should have a 6-inch (15-cm) clearance at
the rear of the chassis.
2.
Turn off the workstation and peripheral devices.
CAUTION: Always be sure the power is off before disconnecting or reconnecting
the mouse, keyboard, or any other peripheral devices. Disconnecting or
connecting any peripheral devices while the unit power is on can damage the
system board.
3.
Disconnect any peripheral devices other than the monitor and keyboard. Do not
disconnect the printer if you want to test it or use it to log error messages.
4.
Delete the Power-On Password, if set.
If a key icon (
) appears on the screen when POST completes, the Power-On
Password is set. If this occurs, you must enter the password to continue. To delete the
password, type the current password, then press Enter. If you do not have access to the
password, you must disable it through the SW1 switch on the system board.
5.
Install loop-back and terminating plugs for complete testing.
6.
Run the Diagnostics diskette.
