3  Install the:
a optical drive
b cooling shroud
c 2.5 inch hard drive assembly
d front bezel
e cover
4  Follow the procedure in After working inside your computer.
System board
Removing the system board
1  Follow the procedure in Before working inside your computer.
2  Remove the:
a cover
b front bezel
c 2.5 inch hard drive assembly
d cooling shroud
e optical drive
f M.2 PCIe SSD
g heat sink assembly
h memory module
i processor
j expansion card
k SD card
3  Disconnect the following cables from the system board:
a speaker [1]
b 2.5–inch drive [2]
c optical drive [3]
d data cable [4]
36
Disassembly and reassembly