Dell OptiPlex 9010 All In One (Mid 2012) - Manual (Page 44)

d) heat-sink assembly
e) power supply unit
f) processor fan
g) converter board
h) power-button board
i) intrusion switch
j) hard drive
k) optical drive
l) WLAN card
m) input/output board shield
n) system-board shield
o) touchscreen board
p) VESA mount bracket
q) back cover
r) VESA stand
5. Follow the procedures in After Working Inside Your Computer .
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