2 resetting the computer, 2 resetting the computer –5 – HP V4200 User Manual

Page 11

Product Description

Maintenance and Service Guide

1–5

1.2 Resetting the Computer

If the computer you are servicing has an unknown password,
follow these steps to clear the password. These steps also
clear CMOS:

1. Prepare the computer for disassembly (refer to

for more

information).

2. Remove the real-time clock (RTC) battery (refer to

for more information on

removing and replacing the RTC battery).

3. Wait approximately 5 minutes.

4. Replace the RTC battery and reassemble the computer.

5. Connect AC power to the computer. Do not reinsert any

battery packs at this time.

6. Turn on the computer.

All passwords and all CMOS settings have been cleared.

✎

This procedure does not clear a DriveLock password that has
been set.