Installing The System Board - Dell OptiPlex 330 User Manual

3. Remove any add-in cards on the system board (see Cards).
4. Remove the processor and heat sink assembly (see Speakers).
5. Remove the memory modules (see
modules can be installed in the same location after the board is replaced.
6. Disconnect all cables from the system board. Note the routing of all cables as you remove them so that you can reroute them correctly after installing
the new system board.
7. Remove the remaining seven screws from the system board. (Four other screws were removed with the heat sink assembly.)
8. Slide the system board assembly toward the front of the computer, and then lift the board up and away.
System Board Screws
1 system board
9. Place the system board that you just removed next to the replacement system board to compare and ensure they are identical.

Installing the System Board

1. Gently align the board into the chassis and slide it toward the back of the computer.
2. Using the seven screws, secure the system board to the chassis.
CAUTION: Failure to replace and tighten all screws may cause electrical shock as these screws are a key part of the system grounding.
3. Replace the cables that you removed from the system board.
4. Replace the processor and the heat sink assembly (see
NOTICE: Ensure that the heat sink assembly is correctly seated and secure.
5. Replace the memory modules into the memory sockets at the same locations from which you removed them (see
6. Replace any add-in cards on the system board.
7. Replace the computer cover (see
NOTICE: To connect a network cable, first plug the cable into the network device and then plug it into the computer.
Removing Memory) and document which memory module is removed from each memory socket so that the memory
2 screws (7)
Installing the Processor and Heat
Replacing the Computer Cover).
Sink).
Installing Memory).