Supermicro SUPERSERVER 6015V-MR, User Manual

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Chapter 6: Advanced Chassis Setup
6-3
6-3 System Fans
The 6015V-MR/6015V-MRLP employs sets of 4-cm counter-rotating fans to provide
cooling (three sets in the 6015V-MR and two sets in the 6015V-MRLP). Each fan
unit is actually made up of two fans joined back-to-back, which rotate in opposite
directions. This counter-rotating action generates exceptional airfl ow and works to
dampen vibration levels. These fans can adjust their speed according to the heat
level sensed in the system, which results in more effi cient and quieter fan opera-
tion. Fan speed is controlled by a setting in BIOS (see Chapter 7). Each fan in a
set has its own separate tachometer.
It is very important that the chassis top cover is properly installed for the airfl ow to
circulate properly through the chassis and cool the components.
System Fan Failure
If a fan fails, the remaining fans will ramp up to full speed and the overheat/fan
fail LED on the control panel will blink on and off. Replace any failed fan at your
earliest convenience with the same type and model (the system can continue to run
with a failed fan). Remove the top chassis cover while the system is still running
to determine which of the two fan units has failed. Then power down the system
before replacing a fan. Removing the power cord(s) is also recommended as a
safety precaution.
Replacing System Fans
1. Removing a fan
With the system powered down, fi rst remove the chassis cover to determine which
fan had failed. Grasp the failed fan unit and lift it out of the chassis. See Figure
6-2.
2. Installing a new fan
Replace the failed fan with an identical 4-cm, 12 volt fan (available from Supermicro:
p/n FAN-0087). Push the new fan into the vacant space in the housing while mak-
ing sure the arrows on the top of the fan (indicating air direction) point in the same
direction as the arrows on the other fans. Reposition the fan housing back over
the two mounting posts in the chassis, then reconnect the fan wires to the same
chassis fan headers you removed them from. Power up the system and check that
the fan is working properly and that the LED on the control panel has turned off.
Finish by replacing the chassis cover.