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For more information:
On controlling system power, see Chapter 4, "Operating the System."
On the power supply, see Chapter 10, "System Hardware and Specifications."
Cooling Fans
A rear fan mounted behind the peripheral device bay and two front fans mounted behind the disk
drive cage ensure proper airflow to cool system components in the base unit.
CAUTION
To maintain proper airflow to cool system components, make sure you install a new
fan with the label on the fan motor facing toward the back of the base unit.
To replace the rear fan:
WARNING
The system is always on when connected to AC power. Before performing this
task, disconnect the system's power cord from its AC power outlet.
1.
Remove the top cover. See Chapter 7, "Gaining Access to System Components."
2.
Disconnect the fan's cable from its connector on the system board.
3.
Remove and retain the screw securing the mounting plate to the base unit. See the following
figure.
4.
Loosen the fan mounting plate thumbscrew.
Fan Mounting
Plate Screw
(on outside)
Fan Mounting
Plate
Thumbscrew
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