HP 511885-051 User Manual

Page of 176
System board
NOTE:
The system board spare kit includes replacement thermal material.
Description
Spare part number
For use with computer models equipped with discrete graphics subsystem memory
511864-001
For use with computer models equipped with UMA graphics subsystem memory
511863-001
For use with computer models equipped with ATI Mobility Radeon HD4650 graphics with 1-GB
memory
518431-001
For use with computer models equipped with ATI Mobility Radeon HD4530 graphics with 512-MB
memory
518432-001
For use with computer models equipped with UMA graphics and GM47 chipset
518433-001
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 following components:
a.
Hard drive (see 
b.
Optical drive (see 
)
c.
Switch cover (see 
d.
Display assembly (see 
)
e.
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:
TV tuner module (see 
RTC battery (see 
Memory module (see 
)
WLAN module (see 
)
Modem module (see 
)
Fan/heat sink assembly (see 
Processor (see 
)
Remove the system board:
Component replacement procedures 101