Dell PowerEdge 850 - Manual (Page 116)

Action
1. Run the appropriate online diagnostics test. See " Using Server Administrator Diagnostics " in "Running the System Diagnostics."
2. Turn off the system and attached peripherals, and disconnect the system from the electrical outlet.
3. Open the system. See " Opening the System ."
4. Ensure that the processor and heat sink are properly installed. See " Replacing the Processor " in "Installing System Components."
5. Close the system. See " Closing the System ."
6. Reconnect the system to the electrical outlet, and turn on the system and attached peripherals.
If the problem persists, see " Getting Help ."
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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.