If you are replacing a component, remove the existing component before performing the installation procedure.
NOTE:The Service Tag of your computer is stored in the system board. Enter the Service Tag in the BIOS setup program after you replace the system board.
NOTE:Replacing the system board removes any changes that you have made to the BIOS using the BIOS setup program. Make the appropriate changes again after you replace the system board. After your computer is reassembled and powered on, it prompts for the Real Time Clock (RTC) reset. When the RTC reset cycle occurs, the computer restarts several times and then an error message is displayed- "Time of day not set". Enter the BIOS when this error appears and set the date and time on your computer to resume normal functionality.
About this task
The following image indicates the connectors on your system board.
Figure 1. System-board connectors
Fingerprint reader-board cable
Antenna cables
Keyboard control-board cable
The following images indicate the location of the system board and provide a visual representation of the installation procedure.
Steps
Hold the system board firmly at the top and bottom portions of the system board.
CAUTION:DO NOT hold the system board at the sides on the left and right as it will damage the system board.
Place the system board on the palm-rest and keyboard assembly.
Align the screw holes on the system board with the screw holes on the palm-rest and keyboard assembly.
Replace the two screws (M2x4) that secure the system board to the palm-rest and keyboard assembly.
Connect the keyboard-control board cable to the system board and close the latch to secure the cable.
Align the screw holes on the Type-C bracket with the screw holes on the palm-rest and keyboard assembly.
Replace the two screws (M2x4) that secure the Type-C bracket to the palm-rest and keyboard assembly.
Connect the fingerprint reader-board cable to the system board and close the latch to secure the cable.
Connect the right speaker cable to the system board.
Connect the keyboard cable to the system board and close the latch to secure the cable.
Connect the antenna cables to the wireless card.
Align the screw hole on the wireless-card bracket with the screw hole on the system board.
Replace the screw (M1.6x3) that secures the wireless-card bracket to the system board.
Connect the touch screen cable and camera cable to the display-assembly cable .
Replace the two screws (M1.6x3) that secure the display-assembly cable holder to the palm-rest and keyboard assembly.
Connect the touch screen cable and camera cable to the display-assembly cable.
Align the screw holes on the display-assembly cable bracket with the screw holes on the system board.
Tighten the three captive screws that secure the display-assembly cable bracket to the system board.
