4. Install the:
a. Docking port assembly
b. PCIe Heatsink assembly
c. WWAN card
d. WLAN card
e. Bottom chassis cover
f. Batteries
5. Follow the procedure in After working inside your computer.
Rear Input-Output Board
Removing the Rear I-O board
1. Follow the procedure in Before working inside your computer.
NOTE: A 5 mm socket wrench should be used to remove/install the caps screws located in rear I/O space.
2. Remove the:
a. Batteries
b. WLAN card
c. WWAN card
d. PCIe heatsink fan assembly
e. Docking port assembly
f. Bottom chassis Cover
CAUTION:
The following epoxy screw locations will require additional focus. These screws are difficult
to remove and there may be damage during the removal process. To prevent damage to the screws and
surrounding plastics, please use the correct screwdriver for each screw type.
3. Open the rear I/O door [1] and remove the two 5.5 mm epoxy cap screws on the serial port [2].
Removing and installing components
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