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Troubleshooting a Fan
WARNING: Only trained service technicians are authorized to remove the system cover and access any of the components inside the system. Before you begin this procedure, review the safety instructions that came with the system.
1Locate the faulty fan indicated by the LCD panel or the diagnostic software.
2Turn off the system and all attached peripherals.
3Open the system. See "Opening the System" on page 82.
4Reseat the fan's power cable.
5Restart the system.
If the fan functions properly, close the system. See "Closing the System" on page 83.
6If the fan does not function, turn off the system and install a new fan. See "Replacing a Cooling Fan" on page 114.
7Restart the system.
If the problem is resolved, close the system. See "Closing the System" on page 83.
If the replacement fan does not operate, see "Getting Help" on page 167.
Troubleshooting System Memory
WARNING: Only trained service technicians are authorized to remove the system cover and access any of the components inside the system. Before you begin this procedure, review the safety instructions that came with the system.
1If the system is operational, run the appropriate online diagnostic test. See "Running the System Diagnostics" on page 163.
If diagnostics indicates a fault, follow the corrective actions provided by the diagnostic program.
2Turn off the system and attached peripherals, and unplug the system from the power source. Press the power button with the system unplugged, and then reconnect the system to power.
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