Compaq.com - Compaq Presario Maintenance and Service Guide - Series
United States December 10, 2002
Maintenance and Service Guide
Compaq Presario EZ2000 Series Computers
Product Description Troubleshooting Illustrated Parts Catalog
Home Removal & Replacement Jumper & Switch Information Specifications
Clearing CMOS
Power-On Self
Test (POST)
Configuration
Diagnostic error
codes
Troubleshooting
without
diagnostics
TROUBLESHOOTING
Clearing CMOS
If the power-on password is unknown, clearing CMOS will disable the password and allow the computer to be
operated.
The location of the Real-time Clock (RTC) battery is shown on the system board illustration below.
1
Complete the
preparation for
disassembly.
2
Remove the Left Side Easy access
panel .
3
Remove the drive cage.
4
To disable the password, move the
jumper (JP1) from pins 1-2 (normal)
to pins 2-3 (clear CMOS) for 10
seconds, then return to pins 1-2.
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