Prerequisites
Save and close all open files and exit all open applications.
Shut down your computer. Click Start > Image: Power button Power > Shut down.
NOTE: If you are using a different operating system, see the documentation of your operating system for shut-down instructions.
Disconnect your computer and all attached devices from their electrical outlets.
Disconnect all attached network devices and peripherals, such as keyboard, mouse, and monitor from your computer.
CAUTION: To disconnect a network cable, first unplug the cable from your computer and then unplug the cable from the network device.
Remove any media card and optical disc from your computer, if applicable.
Removing the base cover:
Remove the eight screws (M2x3, T5-Torx) that secure the base cover to the palm-rest and keyboard assembly.
NOTE: Ensure to remove the protective rubber cover from audio jack pin before replacing the base cover.
Starting from the bottom-left corner, use a plastic scribe to pry the base cover in the direction of the arrows to release the base cover from the palm-rest and keyboard assembly.
NOTE: If you are having difficulty finding gaps in the bottom corners to insert the plastic scribe, you can use a suction cup near the edge of the base cover to create a gap. For more information, see the Critical Callout section of the Field Service Manual.
Grasp the left side and the right side of the base cover and remove the base cover from the palm-rest and keyboard assembly.
CAUTION: Handle with care as the underside of the base cover has pins for grounding the audio board. After removing the base cover, place it in a location where contact can be avoided.
NOTE: The following steps are applicable only if you want to further remove any other component from your computer.
NOTE: Disconnecting the battery cable, removing the battery, or draining the flea power clears the CMOS and resets the BIOS settings on your computer.
NOTE: 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.
Disconnect the battery cable from the system board.
Turn your computer over and press the power button for 15 seconds to drain the flea power.
Removing the right fan:
Remove the two screws (M2x4) that secure the I/O-board FPC bracket to the right fan and the palm-rest and keyboard assembly.
Lift the I/O-board FPC bracket off the system board.
Remove the screw (M2x4) that secures the fan to the system board.
Disconnect the right-fan cable from the system board.
Partially lift the left side of the right fan and slide it to the left to remove it from the palm-rest and keyboard assembly.
NOTE: The images shown above are for the right fan, but the same information applies for the left fan.
Removing the I/O board:
Disconnect the I/O-board cable from the system board and I/O board, then lift the I/O-board cable from the system board.
Remove the screw (M2x4) that secures the USB Type-C port bracket to the system board and lift the bracket off the I/O board.
Remove the screw (M2x4) securing the I/O board in place.
Lift the I/O board off the palm-rest and keyboard assembly.
Installing the I/O board:
Place the I/O board on the palm-rest and keyboard assembly.
Connect the screw (M2x4) that secures the I/O board to the palm-rest and keyboard assembly.
Align the screw hole on the USB Type-C port bracket with the screw hole on the system board.
Connect the screw (M2x4) that secures the USB Type-C port bracket to the system board.
Connect the I/O-board cable to the connector on the system board and I/O board.
NOTE: Ensure to connect IO marked side of the I/O-board cable to the I/O board and the side marked MB to the system board.
Installing the right fan:
Slide the right fan below the heat sink and align the screw hole on fan with the screw hole on the palm-rest and keyboard assembly.
Replace the screw (M2x4) that secures the right fan to the system board.
Connect the right-fan cable to the system board.
Align the screw holes on the I/O-board bracket with the screw holes on the right fan and the system board.
Replace the two screws (M2x4) that secure the I/O-board bracket to the right fan and palm-rest and keyboard assembly.
Installing the base cover:
Connect the battery cable to the system board, if applicable.
Align the screw holes on the base cover with the screw holes on the palm-rest and keyboard assembly.
Starting from the bottom-right corner snap the base cover in. Work your way around to the middle of the base cover and then to the bottom-left corner and snap the base cover into place.
Replace the eight screws (M2x3, T5-Torx) that secure the base cover to the palm-rest and keyboard assembly.
Replace all screws and ensure that no stray screws remain inside your computer.
Connect any external devices, peripherals, or cables you removed before working on your computer.
Replace any media cards, discs, or any other parts that you removed before working on your computer.
Connect your computer and all attached devices to their electrical outlets.
Turn on your computer.
