HP dv2500 Manuale Utente

Pagina di 158
System board
NOTE:
All system board spare part kits include replacement thermal material.
Description
Spare part number
For use only with computer models equipped with a discrete graphics subsystem
448596-001
For use only with computer models equipped with a UMA graphics subsystem
448598-001
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.
Keyboard (see 
d.
Switch cover (see 
e.
Display assembly (see 
)
f.
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:
RTC battery (see 
)
)
)
Modem module (see 
)
Remove the system board:
1.
Disconnect the power connector cable (1) from the system board.
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Chapter 4   Removal and replacement procedures