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2.10.1.2 Fan
The system can operate indefinitely with less than a full compliment of fans in the fan modules,
so long as the ambient temperature is below 45° Celsius.
Operation without a fan unit should not exceed two minutes.
During fan hot-swap, if the LED indicator is OFF, the fan unit is disconnected.
Make sure that the fans have the air flow that matches the model number. An air flow
opposite to the system design will cause the system to operate at a higher (less than
optimal) temperature.
For power supply unit air flow direction, refer to Section 2.2 on page 11
To extract a Fan Unit:
For a fan unit composed of two fans: using two fingers, push both latch releases towards each
Step 1.
other simultaneously while pulling the fan module out of the system. As the fan unseats, the
Fan Status LED will turn off.
For a single fan unit: grasping the handle with your right hand, push the latch release with your
thumb while pulling the handle outward. As the fan unit unseats, the fan unit status LEDs will
turn off.
Remove the fan unit.
Step 2.
To insert a FAN Unit:
Make sure the mating connector of the new unit is free of any dirt and/or obstacles.
Step 1.
Insert the fan unit by sliding it into the opening until slight resistance is felt. Continue pressing
Step 2.
the fan unit until it seats completely
40
Mellanox Technologies
Figure 29: Fan Module Latches
Push Here
These two latches must be pushed towards each other at the
same time while the module is pulled out.
The green Fan Status LED should light. If not, extract the fan unit and reinsert it. After
two unsuccessful attempts to install the fan unit, power off the
ing any system debug.
Push Here
system
before attempt-
Installation
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