Dell OptiPlex 390 Owners Manual - Page 47

Installing The System Board, fan shelter, heat sink and processor, expansion card, drive cage

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Installing The System Board 1. Align the system board to the port connectors on the rear of the chassis and place the system board in the chassis. 2. Tighten the 7-mm hex screw securing the system board to the chassis. 3. Tighten the screws securing the system board to the chassis. 4. Close the expansion card latch. 5. Connect the cables to the system board. 6. Connect the intrusion switch cable, SATA cables, Input/Output board cable, system fan cable, power switch cable, internal speaker cable, and the power supply cables to the system board. 7. Install the fan shelter. 8. Install the heat sink and processor. 9. Install the expansion card. 10. Install the drive cage. 11. Install the front bezel. 12. Install the cover. 13. Follow the procedures in After Working Inside Your Computer. 47

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Installing The System Board
1.
Align the system board to the port connectors on the rear of the chassis
and place the system board in the chassis.
2.
Tighten the 7–mm hex screw securing the system board to the chassis.
3.
Tighten the screws securing the system board to the chassis.
4.
Close the expansion card latch.
5.
Connect the cables to the system board.
6.
Connect the intrusion switch cable, SATA cables, Input/Output board cable,
system fan cable, power switch cable, internal speaker cable, and the
power supply cables to the system board.
7.
Install the
fan shelter
.
8.
Install the
heat sink and processor
.
9.
Install the
expansion card
.
10.
Install the
drive cage
.
11.
Install the
front bezel
.
12.
Install the
cover
.
13.
Follow the procedures in
After Working Inside Your Computer
.
47