Dell Precision 330 - Manual (Page 53)

Mini Tower Chassis
l Removing the microprocessor airflow shroud
l Replacing the microprocessor airflow shroud
Removing the Microprocessor Airflow Shroud (Mini Tower Chassis)
1. Turn off the computer and peripherals, disconnect them from their electrical outlets, wait at least 5 seconds, and then remove the computer cover .
2. Rotate the power supply away from the system board.
3. Remove the airflow shroud by pulling back the release tabs on the top of the shroud and lifting the shroud up until the anchor tabs disengage from the chassis
frame. See " Removing the Airflow Shroud (Mini Tower Chassis) ." Then lift the airflow shroud out of the chassis.
Removing the Airflow Shroud (Mini Tower Chassis)
Replacing the Microprocessor Airflow Shroud (Mini Tower Chassis)
To replace the microprocessor airflow shroud, perform the removal procedure in reverse.
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CAUTION: Before you perform this procedure, see " Precautionary Measures ."
NOTICE: Before disconnecting a peripheral from the system or removing a component from the system board, verify that the standby power indicator on the
system board has turned off. To locate this indicator, see " System Board Components " or " Interior Service Label ."