HP EliteBook 8770w Maintenance And Service Manual page 112

NOTE: Models that support quad-core processors have four memory slots. Models that support
dual-core processors have two memory slots.
Description
For use in all countries and regions except the People's Republic of China:
●
For use with computer models equipped with Intel quad-core processors
●
For use with computer models equipped with Intel dual-core processors
For use only in the People's Republic of China:
●
For use with computer models equipped with Intel quad-core processors
●
For use with computer models equipped with Intel dual-core processors
Before removing the system board, 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 display assembly (see
10. Remove the fan/graphics board heat sink (see
on page
11. Remove the processor heat sink (see
12. Remove the audio/USB 2.0 board (see
13. Remove the speaker assembly (see
14. Remove the Card reader/USB 3.0 board (see
When replacing the system board, be sure that the following additional components are removed
from the defective system board and installed on the replacement system board:
●
SIM (see
●
Bluetooth module and cable (see
on page
●
WLAN module (see
●
WWAN module (see
●
RTC battery (see
104 Chapter 4 Removal and replacement procedures
Battery on page
Optical drive on page
66).
Keyboard on page
Top cover on page
75).
SIM on page 52)
103)
WLAN module on page
WWAN module on page
RTC battery on page
51).
Service access cover on page
63) or upgrade bay hard drive (see
71).
83).
Display assembly on page
Fan/graphics board heat sink assembly
Processor heat sink on page
Audio/USB 2.0 board on page
Speaker assembly on page
Card reader/USB 3.0 board on page
Bluetooth module on page 59
60)
62)
63)
Spare part number
688746-001
688745-001
690035-001
690034-001
52).
88).
110).
94).
96).
102).
and Bluetooth module cable
Upgrade