Dell OptiPlex 7040M - Installing the Coin Cell Battery; Removing the System Board

Installing the coin cell battery
1. Hold the coin cell battery with the "+" sign facing up and slide it under the securing tabs at the positive side of the connector.
2. Press the battery into the connector until it locks into place.
3. Install the:
a. VGA board
b. hard drive assembly
c. cover
4. Follow the procedure in After Working Inside Your Computer.
Removing the system board
1. Follow the procedure in Before Working Inside Your Computer.
2. Remove the:
a. cover
b. hard drive assembly
c. VGA board
d. system fan
e. heat sink
f. processor
3. To remove the plastic tab:
a. Remove the screw that secures the plastic tab to the system board [1].
b. Lift the plastic tab away from the system board [2].
4. To remove the system board:
a. Remove the screws that secure the system board to the computer [1].
b. Slide the system board to disengage the connectors from the back of the computer [2].
c. Lift the system board away from the computer [3].
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