Resetting The Notebook; Power Management - HP Compaq nx8220 Maintenance And Service Manual

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
"Preparing the Notebook for Disassembly,"
information).
2. Remove the real-time clock (RTC) battery (refer to
Section 5.11, "RTC Battery,"
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.

1.3 Power Management

The notebook comes with power management features that
extend battery operating time and conserve power. The
notebook supports the following power management features:
■
Standby
■
Hibernation
■
Setting customization by the user
■
Hotkeys for setting the level of performance
■
Battery calibration
■
Lid switch standby/resume
■
Power/standby button
■
Advanced Configuration and Power Management (ACPM)
compliance
Maintenance and Service Guide
for more information on
Product Description
Section 5.3,
for more
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