HP ProBook 4325s HP ProBook 4325s, 4326s and 4425s Notebook PCs - Maintenance - Page 99

Position the computer right-side up with the front toward you.

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l. Top cover (see Top cover on page 86) m. Power connector and cable 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 Memory module on page 50) ● WLAN module (see WLAN module on page 66) ● WWAN module (see WWAN module on page 57) ● Modem module (see Modem module on page 88) ● Processor (see Processor on page 75) Remove the system board: 1. Position the computer right-side up with the front toward you. 2. Remove the T8 slotted-Torx 2.5×5.0 screw (1) that secures the system board to the base enclosure. 3. Disconnect the USB board cable from the system board (2). 4. Use the ODD connector (3) to lift the right side of the system board from the base enclosure (4). 5. Lift the system board up and to the right to remove the system board (5). Reverse this procedure to install the system board. Component replacement procedures 91

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l.
Top cover (see
Top cover
on page
86
)
m.
Power connector and cable
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
Memory module
on page
50
)
●
WLAN module (see
WLAN module
on page
66
)
●
WWAN module (see
WWAN module
on page
57
)
●
Modem module (see
Modem module
on page
88
)
●
Processor (see
Processor
on page
75
)
Remove the system board:
1.
Position the computer right-side up with the front toward you.
2.
Remove the T8 slotted-Torx 2.5×5.0 screw
(1)
that secures the system board to the base
enclosure.
3.
Disconnect the USB board cable from the system board
(2)
.
4.
Use the ODD connector
(3)
to lift the right side of the system board from the base enclosure
(4)
.
5.
Lift the system board up and to the right to remove the system board
(5)
.
Reverse this procedure to install the system board.
Component replacement procedures
91