Product guide

QSSC-S4R Server System Product Guide Chapter 1: System Description
Version 1.0
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Figure 9. Cooling Zone Configuration
Caution Wherever a memory riser is not present, a memory air baffle must be installed over the adjacent
opening in the fan cage. The memory air baffle restricts airflow to the area where no memory riser is
present, ensuring proper airflow over installed DIMMS. Memory air baffles are needed for all parts
of the mainboard where no memory risers are present.
In addition, there are two dual-motor fans located within each power supply drawing air through the hard drives
and across the power distribution board.
Figure 10. PSU Fan Locations
Note: The cooling system is non redundant in a non-redundant power supply system configuration.
Fan Modules
The QSSC-S4R Server System supports eight hot swap fan modules that are located at the upper front of the
chassis and can be removed inside the chassis with the chassis cover removed (See Figure 8). The fans are
docked on the front panel fan board (FPFB). Each fan module has an amber LED wired to the front panel fan
board. The LED will turn on when the fan is not functioning within specifications. The fan module sends fan
signals via a 2x3 connector to the front panel fan board (FPFB).