System board
NOTE: The system board spare part kit includes the ExpressCard assembly and replacement thermal
material.
Description Spare part number
For use only with HP Compaq 6730s Notebook PC models
For use only with computer models equipped with Intel processors (includes 256-MB of discrete
graphics subsystem memory)
491976-001
For use only with computer models equipped with Intel processors with UMA graphics subsystem
with a GL40 system board
491250-001
For use only with computer models equipped with Intel processors with UMA graphics subsystem
and a GL45 system board
501354-001
For use only with HP Compaq 6735s Notebook PC models
For use only with computer models equipped with AMD processors with UMA graphics subsystem
494106-001
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
Battery on page 50).
5. Remove the following components:
a. Hard drive (see
Hard drive on page 51)
b. Optical drive (see
Optical drive on page 59)
c. Switch cover and keyboard (see
Switch cover and keyboard on page 61)
d. Speakers (see
Speakers on page 66)
e. Display assembly (see
Display assembly on page 67)
f. Top cover (see
Top cover on page 74)
g. USB connector module (see
USB connector module on page 77)
h. Bluetooth module (see
Bluetooth module on page 78)
i. Fan (see
Fan on page 81)
j. RTC battery (see
RTC battery on page 80)
Component replacement procedures 83