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6-5
System Fans
Four fans provide cooling for the chassis. These fans circulate air through the
chassis as a means of lowering the chassis internal temperature. They system
fans are easy to change modules. There is no need to uninstall any other parts
inside the system when replacing fans, and no tools are required for installation.
They are not hot-swappable.
Optional Fan Configurations
The SC217H model chassis is designed so that the default configuration of the
system is for each motherboard to control two fans. Each motherboard node in
the chassis is connected to the backplane through the adapter card, mounted in
the motherboard node drawer. In the event that one of the motherboard drawers is
removed, then the remaining motherboard will operate both fans.
Changing a System Fan
1. If necessary, open the chassis while the power is running to determine which
fan has failed. (Never run the server for an extended period of time with the
chassis cover open.)
2. Remove the failed fan's power cord from the backplane.
3. Lift the fan housing up and out of the chassis.
4. Push the fan up from the bottom and out of the top of the housing.
Fan Configurations Options
SC217H Hot-Swappable Default Configuration
Fans A and B connected to backplane,
backplane connected to Node A and B by adapter card
Fans C and D connected to backplane,
backplane connected to Nodes A and B by adapter card
6-5
Chapter 6: Advanced Chassis Setup
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