Dell OptiPlex 7440 Owner's Manual page 37

4. Align all the cables through their retention clips on the display panel.
5. Tighten the screws to secure the latches to the computer.
6. Install the:
a. system board
b. speakers
c. processor fan
d. heatsink
e. power-supply unit
f. converter board
g. power and OSD buttons board
h. intrusion switch
i. hard drive
j. optical drive
k. WLAN card
l. system-board shield
m. VESA mount bracket
n. speaker cover
o. cable cover
p. back cover
q. stand
7. Follow the procedure in After Working Inside Your Computer.
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