HP EliteBook 8770w Mobile Workstation Maintenance and Service Guide

Before removing the security lock, 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
Battery on page 51).
5. Remove the service access cover (see
Service access cover on page 52).
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).
10. Remove the fan/graphics board heat sink (see
Fan/graphics board heat sink assembly
on page 75).
11. Remove the processor heat sink (see
Processor heat sink on page 110).
12. Remove the audio/USB 2.0 board (see
Audio/USB 2.0 board on page 94).
13. Remove the speaker assembly (see
Speaker assembly on page 96).
14. Remove the Card reader/USB 3.0 board (see
Card reader/USB 3.0 board on page 102).
15. Remove the system board (see
System board on page 103).
Remove the security lock:
1. Position the computer right-side up with the front toward you.
2. Remove the Torx T9M2.5×6.0 screw (1) that secures the security lock to the base enclosure.
Component replacement procedures 109