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Intel® Server Chassis SC1400UP / Intel® Server Platform SR1425BK1-E
2.1
System Fans
The Intel® Server Chassis SC1400UP system fans consist of four 40x40x56mm dual rotor and
one 40x40x28mm single rotor multi-speed fans, which provide the primary airflow for the
system. The four dual rotor fans provide the primary cooling for the CPU, GMCH, and memory
components on the Intel Server Board SE7221BK1-E. The single rotor fan provides the primary
cooling for PCI add-in cards, the ICH6R and PXH chipset components.
Removal and insertion of individual fans is a tool-less operation, and provides for ease of
installation and serviceability of the server chassis cooling subsystem. The individual fans are
not hot swappable. The server must be turned off and power removed from the system before
any of the fans can safely be replaced.
Each dual rotor fan has an 8-pin wire harness which connects to the system fan headers 5,6,7
and 8 on the Intel Server Board SE7221BK1-E. These are shown, from left to right, in the
following figure. Each fan harness provides power and tachometer lines allowing the fans to be
monitored independently by server management software. The fan distribution board has a 20-
pin connector which provides the power and communication signal path from the baseboard.
Figure 10. Intel® Server Chassis SC1400UP System Fans 4, 5, 6, 7, 8
Figure 11. Intel® Server Platform SE7221BK1-E System Fan headers 4, 5, 6, 7, 8
Revision 1.0
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