User Guide
Troubleshooting Your System 145
• Fan assembly
• Processors and heat sinks
• Memory modules
4
Let the system dry thoroughly for at least 24 hours.
5
Reinstall the processors and heat sinks, memory modules, power supplies, 
and fan assembly. See "Installing System Components."
6
Close the system. See "Closing the System."
7
Reconnect the system to the electrical outlet, and turn on the system and 
attached peripherals.
If the system does not start properly, see "Getting Help."
8
If the system starts properly, shut down the system and reinstall all of the 
remaining components that you removed. See "Installing an Expansion 
Card."
9
Run the appropriate online diagnostic test. See "Running the System 
Diagnostics."
If the tests fail, see "Getting Help."
Troubleshooting a Damaged System
  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
Turn off the system and attached peripherals, and disconnect the system 
from the electrical outlet.
2
Open the system. See "Opening the System."
3
Ensure that the following components are properly installed:
• Expansion cards and both expansion-card risers
• Power supplies
•Fans
• Processors and heat sinks










