Compaq Presario R4000 HP Pavilion zv6000 Notebook PC and Compaq Presario R4000 - Page 8

Resetting the Notebook, Preparing the Notebook for Disassembly, System Board

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Product Description 1.2 Resetting the Notebook If the notebook you are servicing has an unknown password, follow these steps to clear the password. These steps also clear CMOS: 1. Prepare the notebook for disassembly (refer to Section 5.3, "Preparing the Notebook for Disassembly," for more information). 2. Remove the real-time clock (RTC) battery (refer to Section 5.22, "System Board," for more information on removing and replacing the RTC battery). 3. Wait approximately 5 minutes. 4. Replace the RTC battery and reassemble the notebook. 5. Connect AC power to the notebook. Do not reinsert any battery packs at this time. 6. Turn on the notebook. All passwords and all CMOS settings have been cleared. 1-4 Maintenance and Service Guide

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1–4
Maintenance and Service Guide
Product Description
1.2
Resetting the Notebook
If the notebook you are servicing has an unknown password,
follow these steps to clear the password. These steps also
clear CMOS:
1. Prepare the notebook for disassembly (refer to
Section 5.3,
“Preparing the Notebook for Disassembly,”
for more
information).
2. Remove the real-time clock (RTC) battery (refer to
Section 5.22, “System Board,”
for more information on
removing and replacing the RTC battery).
3. Wait approximately 5 minutes.
4. Replace the RTC battery and reassemble the notebook.
5. Connect AC power to the notebook. Do not reinsert any
battery packs at this time.
6. Turn on the notebook.
All passwords and all CMOS settings have been cleared.