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6-6
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. The SC827 system
fans are hot-swappable. There is no need to power down the system when replacing
fans and new tools are required for installation.
Optional Fan Confi gurations
The SC827H model chassis is designed so that the default confi guration of
the system is for each motherboard to control two fans. The fans are hot-
swappable. Each motherboard node in the chassis is connected to the backplane
through the adapter card, mounted in the motherboard drawer. In the event
that one of the motherboard drawers is removed, then the remaining
motherboard will operate both fans.
SC827H Hot-Swappable Default Confi guration
Fan A connected to bplane, bplane connected to Node A by adapter card
Fan B connected to bplane, bplane connected to Node B by adapter card
Fan C connected to bplane, bplane connected to Node C by adapter card
Fan D connected to bplane, bplane connected to Node D by adapter card
Fan Confi gurations Options
Figure 6-4. System Fan Placement
6-5
Chapter 6: Advanced Chassis Setup
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