HP 550 HP 550 Notebook PC - Maintenance and Service Guide - Page 73

System board, computer on, and then shut it down through the operating system.

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f. Display lid switch module (see Display lid switch module on page 53) g. Display assembly (see Display assembly on page 54) h. Top cover (see Top cover on page 59) Remove the Bluetooth module: 1. Disconnect the Bluetooth module cable (1) from the system board. 2. Remove the two Phillips PM2.0×4.0 screws (2) that secure the Bluetooth module to the base enclosure. 3. Remove the Bluetooth module (3) from the base enclosure. Reverse this procedure to install the Bluetooth module. System board NOTE: All system board spare part kits include the ExpressCard assembly. NOTE: All system board spare part kits include replacement thermal material. Description For use only with computer models equipped with Intel Core2 Duo processors For use only with computer models equipped with Intel Celeron M processors Spare part number 495410-001 495395-001 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. Component replacement procedures 65

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f.
Display lid switch module (see
Display lid switch module
on page
53
)
g.
Display assembly (see
Display assembly
on page
54
)
h.
Top cover (see
Top cover
on page
59
)
Remove the Bluetooth module:
1.
Disconnect the Bluetooth module cable
(1)
from the system board.
2.
Remove the two Phillips PM2.0×4.0 screws
(2)
that secure the Bluetooth module to the base
enclosure.
3.
Remove the Bluetooth module
(3)
from the base enclosure.
Reverse this procedure to install the Bluetooth module.
System board
NOTE:
All system board spare part kits include the ExpressCard assembly.
NOTE:
All system board spare part kits include replacement thermal material.
Description
Spare part number
For use only with computer models equipped with Intel Core2 Duo processors
495410-001
For use only with computer models equipped with Intel Celeron M processors
495395-001
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.
Component replacement procedures
65