148 Troubleshooting Your System
Troubleshooting a Fan
CAUTION: Many repairs may only be done by a certified service technician. You
should only perform troubleshooting and simple repairs as authorized in your
product documentation, or as directed by the online or telephone service and
support team. Damage due to servicing that is not authorized by Dell is not covered
by your warranty. Read and follow the safety instructions that came with the
product.
1
Locate the faulty fan indicated by the LCD panel or the diagnostic
software.
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
Reseat the fan's power cable.
5
Close the system and restart it.
6
If the fan does not function, turn off the system and install a new fan. See
"Cooling Fans."
7
Restart the system.
If the replacement fan does not operate,
see
"Getting Help."
Troubleshooting System Memory
CAUTION: Many repairs may only be done by a certified service technician. You
should only perform troubleshooting and simple repairs as authorized in your
product documentation, or as directed by the online or telephone service and
support team. Damage due to servicing that is not authorized by Dell is not covered
by your warranty. Read and follow the safety instructions that came with the
product.
1
If the system is operational, run the appropriate online diagnostic test. See
"Running the System Diagnostics."
If the diagnostics indicates a fault, follow the corrective actions provided
by the diagnostic program.
2
If the system is not operational, turn off the system and attached
peripherals, and unplug the system from the power source. Wait at least 10
seconds and then reconnect the system to power.