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Hot-Swap System Fans
The following procedures describe the removal and replacement of the hot-swap system fans. Before
performing the following procedures, read the "Safety Notices" on page ix.
This system supports hot-swap and redundant cooling. The system electronics are cooled with three
system cooling fans.
Note: Each fan unit has two LEDs on the top cover. The green LED indicates the fan is operating
properly. The amber LED indicates a fan failure.
Removing a Hot-Swap System Fan
To remove a hot-swap system fan, do the following:
1. Place the system into the service position as described in "Placing the Model 275 into the Service and
Operating Position" on page 248.
2. Remove the service access cover as described in "Removing the Service Access Cover" on page 249
3. Locate the system fans, as shown in the following illustration.
4. Pull on the orange locking knob of the failing fan until you feel it unlock.
5. Press and hold the plastic tab attached to the fan tray away from the system fan.
6. Pull on the locking knob of the failing fan again until you feel the fan pull away from its connector.
7. Lift the failing fan unit out of the fan tray.
1 System Fan 1
2 System Fan 2
3 System Fan 3
4 System Fan LEDs
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IntelliStation POWER 9114 Model 275 Service Guide
5 Orange Locking Knob
6 Model 275
7 Service Access Cover
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