Troubleshooting; Power-On Password - Compaq DESKPRO 2000 SERIES Maintenance & Service Manual

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chapter
T
ROUBLESHOOTING
This chapter provides troubleshooting information for the Compaq 2000 Series of Personal Computers.
The four levels of troubleshooting for the computer are:
Power-On Self-Test (POST)
Computer Setup
Compaq Diagnostics
Troubleshooting without diagnostics
Power-On Self-Test (POST) messages, Diagnostics error codes, and memory error codes are included
in the tables.
The messages and codes appear in tables that include a description of the error, the probable cause, and
the recommended action that should be taken to resolve the error condition.
Adherence to the procedures and precautions described in this chapter is essential for proper service.

2.1 Power-On Password

The power-on password prevents use of the computer until the password is entered.
If the power-on password is set, a key icon ( ) appears on the screen when POST completes. If this
occurs, enter the password to continue. If you enter the password incorrectly, a broken key icon (
displayed. Try again. After three unsuccessful tries, you must turn off the computer, then on again
before you can continue. To delete the password, type the current password immediately followed by a
slash (/) and press Enter.
If you don't have access to the power-on password, disable the power-on password by completing
the following procedures:
1. Complete the preparation for disassembly procedures in Chapter 4.
2. If your computer is a desktop model, remove the hood. This is described in Chapter 5.
If your computer is a minitower model, remove the left side access panel as described in Chapter 5.
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Compaq Deskpro 2000 2-1