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Rev A04
Never remove the sFU-4 and sFU-8E at the same time; at least one fan unit
must be installed at all times.
5.8
Replacing the sFU-4 Unit
To replace the sFU-4 unit:
1. Loosen the screws that secure the sFU-4 unit to the chassis.
2. Hold the handles and remove the sFU-4 unit by sliding it out of the chassis.
3. Within five minutes, replace with a new sFU-4 unit and place and tighten the screws.
4. Listen for proper sFU-4 fan operation and check the LED indicators, and check the sFU
(Optional) LED on the sFU-8E module.
5.9
Replacing the sFU-8E Unit
To replace the sFU-8E fan unit:
1. Loosen the screws that secure the sFU-8 to the chassis.
2. Hold the handles and remove the sFU-8 by sliding it out of the chassis.
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Mellanox Technologies
Figure 45: Securing the sFU-4 Board
Installing Modules
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