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1Run the appropriate online diagnostic test. See "Using the System Setup Program" on page 41.
2Remove power from the system and attached peripherals, and disconnect the system from the electrical outlet.
3Open the system. See "Removing the Top Cover" on page 60.
4Ensure that each expansion card is firmly seated in its connector. See "PCI Express
5Close the system. See "Installing the Top Cover" on page 60.
6Reconnect the system to the electrical outlet, and turn on the system and attached peripherals.
If the problem persists, go to the next step.
7Remove power from the system and attached peripherals, and disconnect the system from the electrical outlet.
8Open the system. See "Removing the Top Cover" on page 60.
9Remove all expansion cards installed in the system. See "PCI Express Add- in Cards" on page 86.
10Close the system. See "Installing the Top Cover" on page 60.
11Reconnect the system to the electrical outlet, and turn on the system and attached peripherals.
12Run the appropriate online diagnostic test.
If the tests fail, see "Getting Help" on page 165.
13For each expansion card you removed in step 9, perform the following steps:
a Remove power from the system and attached peripherals, and disconnect the system from the electrical outlet.
b Open the system. See "Removing the Top Cover" on page 60. c Reinstall one of the expansion cards.
d Close the system. See "Installing the Top Cover" on page 60.
eRun the appropriate diagnostic test.
If the tests fail, see "Getting Help" on page 165.
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Troubleshooting Your System