Processor Heat Sink - HP EliteBook 8770w Maintenance And Service Manual

3. Rotate the security lock away from the base enclosure and remove the security lock from the
base enclosure (2).
Reverse this procedure to install the security lock.

Processor heat sink

Description
For use only with computer models equipped with quad-core processors
For use only with computer models equipped with dual-core processors
Before removing the processor heat sink, follow these steps:
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
5. Remove the service access cover (see
6. Remove the optical drive (see
bay hard drive on page
7. Remove the keyboard (see
8. Remove the top cover (see
9. Remove the fan/graphics board heat sink assembly (see
on page
Battery on page
Optical drive on page
57).
Keyboard on page
Top cover on page
65).
42)
Service access cover on page
54) or upgrade bay hard drive (see
62).
73).
Fan/graphics board heat sink assembly
Component replacement procedures
Spare part number
653629-001
652542-001
43).
Upgrade
99