System board
Removing system board
1  Follow the procedure in Before working inside your computer.
2  Remove the:
a cover
b bezel
c 2.5–inch drive assembly
d optical drive
e heat sink
f processor
g expansion card
h memory module
i M.2 PCIe SSD
j SD card reader
3  To remove the I/O panel:
a Remove the screw that secures the I/O panel [1].
b Slide and push toward the front from the computer [2].
4  Disconnect the following cables from the system board:
a speaker [1]
b 2.5–inch drive [2]
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Removing and installing components