bOpen the system. See "Opening and Closing the System" on page 70.

cReinstall one of the expansion cards.

dClose the system. See "Opening and Closing the System" on page 70.

eRun the appropriate diagnostic test.

If the tests fail, see "Getting Help" on page 175.

Troubleshooting the Microprocessors

Problem

Error message indicates a processor problem.

Front-panel status LCD indicates a problem with the processors or system board.

A heat sink is not installed for each processor.

Action

CAUTION: Only trained service technicians are authorized to remove the system cover and access any of the components inside the system. Before performing any procedure, see your Product Information Guide for complete information about safety precautions, working inside the computer and protecting against electrostatic discharge.

1Run the appropriate online diagnostics test. See "Using Server Administrator Diagnostics" on page 161.

2Turn off the system and attached peripherals, and disconnect the system from the electrical outlet.

3Open the system. See "Opening and Closing the System" on page 70.

4Inspect each processor and heat sink and ensure that they are properly installed.

If you need to make adjustments, see "Installing a Processor" on page 123.

5Close the system. See "Opening and Closing the System" on page 70.

6Reconnect the system to the electrical outlet, and turn on the system and attached peripherals.

7Run the appropriate online diagnostic test.

If the tests fail or the problem persists, see "Getting Help" on page 175.

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Troubleshooting Your System

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Dell R805 owner manual Troubleshooting the Microprocessors