Dell OptiPlex XE3 Small Form Factor - Removing System Board

3 Install the:
a PSU
b Heat sink fan
c Heat sink duct
d HDD assembly
e Hard drive and optical drive module
f Front bezel
g Side cover
4 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
c HDD assembly
d Hard drive and optical drive module
e Heat sink duct
f Heat sink fan
g Heat sink
h Processor
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Disassembly and reassembly