Before you begin: Remove the service door, solid state drive,
battery, wireless WAN module, and fan.
Removal:
Peel back the Mylar strip and disconnect the IR camera cable
from its connector on the system board.
Carefully disconnect the wireless LAN antenna cables from the system board
by grasping the connectors with a small pair of needle-nose pliers or tweezers.
CAUTION! Use care when disconnecting the wireless LAN antenna cables from the system board.
A damaged cable or connector can degrade Notebook performance.
Using minimal force, lift the locking bar up on the fingerprint reader board ZIF connector,
and disconnect the fingerprint reader board ribbon cable from the system board.
Remove the retention tape that secures the keyboard ribbon cable to the top cover.
Using minimal force, lift the locking bar up on the keyboard ZIF connector,
and disconnect the keyboard ribbon cable from the system board.
Using minimal force, lift the locking bar up on the keyboard backlight ZIF connector,
and disconnect the keyboard backlight ribbon cable from the system board.
Using minimal force, lift the locking bar up on the smart card reader board ZIF connector,
and disconnect the smart card reader board ribbon cable from the system board.
Disconnect the speaker cable from its connector on the system board.
Using minimal force, lift the locking bar up on the audio board ZIF connector,
and disconnect the audio board ribbon cable from the system board.
Peel back the retention tape,
and disconnect the display panel cable from its connector on the system board.
Remove the five three-millimeter P1 Phillips head screws
that secure the system board to the top cover.
Remove the two 2.5-millimeter P1 Phillips head screws
that secure the system board to the top cover.
Using both hands, carefully lift the front edge of the system board
off of the alignment pins on the top cover,
and slide the rear edge out from underneath the lip on the top cover.
Remove the system board.
Important: Make careful note of the placement of the Mylar shielding on the old system board,
and place a new strip of Mylar shielding in the same position on the new system board.
Note: Before installing a system board,
remove the following from the old system board and install on the new system board:
Heat sink,
Thermal sensor board.
Reverse this procedure to install the system board.
Important: After system board replacement,
be sure to complete post-installation tasks, as required, that may include:
Verifying functionality of the Notebook,
Updating the BIOS,
Updating DMI and other settings.