Technical Product Specification

Intel® Server System SR1600UR TPS Cooling Subsystem
Revision 1.8 Intel order number E45725-010
25
Table 19. Non-redundant Cooling Zones
Fan
Cooling Zone
Description of greatest cooling influence
System Fan #1
and #2
CPU2
Primary cooling for CPU 2 and memory
System Fan #3
and #4
CPU1 Primary cooling for hard drive2, CPU 1, and
memory
System Fan #5 PCI Primary cooling for hard drive1, full-height PCI
cards, and the IOH chipset
Power Supply
Fans − 2 fans per
module
Power
Supply
Primary cooling for hard drive 0, and the power
supply module
The system fan module is designed for ease of use and supports several management features
that can be utilized by the Integrated Baseboard Management Controller.
 Each fan is designed for tool-less insertion or removal from the fan module housing. For
instructions on installing or removing a fan module, see the Intel
®
Server System
SR1600UR Service Guide.
Note: The fans are NOT hot-swappable. The system must be turned off in order to replace a
failed fan.
 Each fan within the module is capable of supporting multiple speeds. If the internal
ambient temperature of the system exceeds the value programmed into the thermal
sensor data record (SDR), the Integrated BMC firmware increases the speed for all the
fans within the fan module.
 Each fan connector within the module supplies a tachometer signal that allows the
Integrated BMC to monitor the status of each fan. If one of the fans fails, the remaining
fans increase their rotation and attempt to maintain the thermal requirements of the
system.
 Each fan has an associated fault LED on the fan board or backplane located next to the
fan header.
If a fan fails, server management illuminates the fault LED for the failing fan.
Table 20. Individual Fan Assembly Pin-out
Pin
Signal Name
Description
1
Fan Tach B
Tachometer signal from the first fan rotor
2
PWM
PWM control signal
3
+12 V
Power Supply 12 V
4
+12 V
Power Supply 12 V
5 Fan Tach A Tachometer signal from the second fan rotor
6 Ground Power Supply Ground
7 Ground Power Supply Ground
8
Not used
Not used
9
Loopback wire
Loop back to pin 10 to enable backplane presence LED functionality
10
Loopback wire
Loop back to pin 9 to enable backplane presence LED functionality