HP EliteBook 8770w Mobile Workstation Maintenance and Service Guide

5. Remove the service access cover (see Service access cover).
6. Remove the optical drive (see
Optical drive on page 63) or upgrade bay hard drive (see Upgrade
bay hard drive on page 66).
7. Remove the keyboard (see
Keyboard on page 71).
8. Remove the top cover (see
Top cover on page 83)
9. Remove the display assembly (see
Display assembly on page 88).
Remove the fan/graphics board heat sink assembly:
NOTE: Before proceeding, make sure you disconnect the power button board cable and the RJ-45
cable.
1. Following the sequence stamped into the graphics board heat sink, loosen the 4 Phillips captive
screws (1) that secure the graphics board heat sink/fan assembly to the system board.
76 Chapter 4 Removal and replacement procedures