
Chapter 6: Advanced Chassis Setup
6-3 System Fans
Four
These fans can adjust their speed according to the heat level sensed in the system, which results in more effi cient and quieter fan operation. Fan speed is controlled by a BIOS setting (see Chapter 7).
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
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 turn on. 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 (see instructions on p.
Replacing System Cooling Fans
1. Removing a fan
After turning off the power to the system, fi rst remove the chassis cover and unplug all the fan cables from the serverboard. Grasp the rectangular housing that holds the fan units and lift it out of the chassis (see Figure
2. Installing a new fan
Replace the failed fan with an identical