HP G4 Maintenance And Service Manual page 81

Description
For use only with computer models equipped with an HM55 chipset and a graphics subsystem with
512-MB of discrete video memory
For use only with computer models equipped with an HM65 chipset and a graphics subsystem with
UMA video memory
For use only with computer models equipped with an HM55 chipset and a graphics subsystem with
UMA video memory
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
●
Optical drive (see
●
Hard drive (see
●
WLAN module (see
●
Keyboard (see
●
Top cover (see
When replacing the system board, be sure that the following components are removed from
the defective system board and installed on the replacement system board:
●
Memory module (see
●
RTC battery (see
●
Fan and heat sink (see
●
Processor (see Processor on page
Battery on page
Optical drive on page
Hard drive on page
WLAN module on page
Keyboard on page 56)
Top cover on page 59)
Memory module on page
RTC battery on page 77)
Fan and heat sink on page
84)
48), and then remove the following components:
49)
51)
54)
53)
79)
Component replacement procedures
Spare part number
636371-001
636373-001
636370-001
73