HP Compaq 8510p - Compaq Business Notebook User Manual

Unknown user password
If the computer you are servicing has an unknown user password, follow these steps to clear the
password:
NOTE: These steps also clear CMOS.
1. Shut down the computer. If you are unsure whether the computer is off or in Hibernation, turn the
computer on, and then shut it down through the operating system.
2. Disconnect all external devices connected to the computer.
3. Disconnect the power from the computer by first unplugging the power cord from the AC outlet and
then unplugging the AC adapter from the computer.
4. Remove the battery (see
Battery on page 45).
5. Remove the real-time clock (RTC) battery (see
RTC battery on page 74).
6. Wait approximately 5 minutes.
7. Replace the RTC battery and reassemble the computer.
8. Connect AC power to the computer. Do not reinsert any batteries at this time.
9. Turn on the computer.
All passwords and all CMOS settings have been cleared.
42 Chapter 4 Removal and replacement procedures

HP Compaq 8510p - Compaq Business Notebook Specifications

General

RAM	Up to 4 GB DDR2
Processor	Intel Core 2 Duo
Display	15.4-inch
Storage	80GB, 120GB, 160GB HDD
Graphics	ATI Mobility Radeon HD 2600
Operating System	Windows Vista
Weight	2.8 kg (6.2 lbs)
Battery	6-cell Li-Ion
Chipset	Intel PM965
Optical Drive	DVD+/-RW SuperMulti
Networking	Gigabit Ethernet
Audio	Integrated stereo speakers
Ports	3 USB 2.0, VGA, headphone, microphone
Slots	ExpressCard/54