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Compaq Deskpro Workstation AP250 Maintenance and Service Guide
Compaq Confidential – Need to Know Required
Writer: Bruce Sullivan Project: Compaq Deskpro Workstation AP250 Maintenance and Service Guide Comments:
Part Number: 118133-001 File Name: e-ch4 Diagnostic Tools.doc Last Saved On: 10/26/99 3:09 PM
Running Diagnostics Utilities for 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. See Chapter 3
for assistance in the removal and replacement of a particular subassembly.
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 3-inch
(7.62-centimeter) 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 Power-On Password:
a.
Turn on or restart the workstation. To delete the Setup Password, run
Computer Setup.
b.
When the key icon appears, type your current password followed by
a slash (/) or alternate delimiter character as shown:
current password/
To enable the Power-On Password, install the jumper. Removing the
jumper will disable the Power-On Password. See Figure 4-1 for the
location of the jumper.
