Dell D18M - System Board; Removing System Board

3. Install the system fan.
4. Close the front panel door.
5. Install the:
a. Front bezel
b. Side cover
6. Follow the procedure in After working inside your computer.
System board
Removing system board
1. Follow the procedure in Before working inside your computer.
2. Remove the:
a. side cover
b. front bezel
3. Open the front panel door.
4. Remove the:
a. heat sink fan
b. heat sink
c. processor
d. expansion card
e. M.2 PCle SSD
f. SD card reader
g. memory module
5. Disconnect the following cables from the system board:
a. PSU [1]
b. power cable and SATA cable [2]
c. speaker [3]
d. PSU [4]
e. power distribution for optical drive and hard drive [5]
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Disassembly and reassembly