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64 Installing System Components
Removing the Power Supply Blank
Using a Phillips screwdriver, remove the screw on the left side of the blank, rotate the blank slightly to
clear the bay, and remove from the chassis. See Figure 3-10.
NOTICE: To ensure proper system cooling, the power supply blank must be installed on the unoccupied power
supply bay in a non-redundant configuration. Remove the power supply blank only if you are installing a second
power supply.
Installing the Power Supply Blank
To install the power supply blank, insert the tab on the right edge of the blank into the slot in the power
supply bay wall. Rotate the blank into the power supply bay and secure with the Phillips screw. See
Figure 3-10.
Fans
The system contains six hot-plug cooling fans:
• One expansion-bay cooling fan (fan 1)
• Two processor cooling fans, one for each processor (fans 2 and 3)
• Three memory module cooling fans:
– One fan on top of the memory cooling shroud (fan 4)
– Two fans at the rear of the system (fans 5 and 6)
NOTICE: In the event of a problem with a particular fan, the fan’s number is referenced by the systems
management software, allowing you to easily identify and replace the proper fan.
Figure 3-11 shows the positions and identification numbers of the fans.