Compaq.com - Compaq Presario Maintenance and Service Guide - 4900, 5000, & 5100 Series
United States December 9, 2002
Maintenance and Service Guide
Compaq Presario 4900, 5000, & 5100 Series Computers
Home
Product Description
Troubleshooting
Illustrated Parts Catalog
Removal & Replacement
Jumper & Switch Information
Specifications
Clearing
CMOS
Power-On Self
Test (POST)
Configuration
Diagnostic error
codes
Troubleshooting
without
diagnostics
l
TROUBLESHOOTING
Clearing CMOS
If the power-on password is unknown, clearing CMOS will disable the password and allow the
computer to be operated.
The board shown is one used for the 5000/5100 Series computers. If you have a
4900 Series
computer
, click the link for the correct board and CMOS location.
CMOS jumper location
1
Complete the
preparation for
disassembly procedures.
2
Remove the hood
.
3
Remove the fax/modem board
.
4
Open the system board bracket
.
NOTE:
If your board is different
from the one shown,
click
here
to see two
alternative boards used
on 5000/5100 Series
computers.
5
To disable the password, move the
jumper (J22) from pins 1-2 to pins
2-3 for 10 seconds, then return to
pins 1-2.
6
Replace the system board bracket and
perform the desired troubleshooting.
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