d) base cover
e) battery
f) battery cover
5. Follow the procedure in After working inside your computer.
Input-Output board
Removing the left Input-Output -IO board
1. Follow the procedure in Before working inside your computer.
2. Remove the:
a) battery cover
b) battery
c) base cover
d) hard drive
e) keyboard
f) palmrest
3. To remove I/O board:
a) Remove the M2.5x5.0 screws that secure the thunderbolt bracket to the computer [1].
b) Lift the bracket from the thunderbolt connector [2].
c) Remove the M2.5x5.0 screws that secure the I/O board to the computer [3].
d) Lift the I/O board upwards to and remove it from the computer.
Installing the left IO board
1. Slide the I/O board into its slot on the computer.
2. Install the thunderbolt bracket.
3. Replace the M2.5x5.0 screws to secure the I/O board to the computer.
4. Install the:
a) palmrest
32
Disassembly and reassembly