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Warning: Except for short periods of time, do NOT operate the server without the
cover in place. The chassis cover must be in place to allow proper airflow and prevent
overheating.
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System Fans
It is very important that the chassis top cover is properly installed and making a
good seal in order for the cooling air to circulate properly through the chassis and
cool the components. See Figure 6-2.
The system chassis contains six 4-cm counter-rotating fans. Each fan unit is actu-
ally made up of two fans joined back-to-back, which rotate in opposite directions.
This counter-rotating action generates exceptional airflow and works to dampen
vibration levels.
System Fan Failure
Fan speed is controlled by system temperature via IPMI software. If a fan fails, the
remaining fans will ramp up to full speed. Replace any failed fan at your earliest
convenience with the same type and model (the system can continue to run with
a failed fan).
Figure 6-2. Removing the Chassis Cover
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Chapter 6: Advanced Chassis Setup
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