Dell PRECISION 530 - Manual (Page 125)

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2 Slide the TEM pan toward the back of the computer and press the two
green TEM pan release tabs into their securing slots.
This locks the TEM pan into position.
NOTICE:
3 Replace the TEM pan screw.
NOTE: Replacing the TEM pan screw is optional. To avoid damage to the
system board, Dell strongly recommends that you replace the TEM pan screw
before traveling with or shipping the computer.
4 Replace all components on the system board by performing step 3
through step 8 of " Removing the System Board " in reverse.
5 Set the jumpers on the new system board so that they are identical to
those on the original board.
6 Close the computer cover and restart the computer.
7 Run system setup to ensure that your settings are correct and that all
system board components are correctly identified.
8 Run the Dell Diagnostics to verify that the computer is operating
properly.