Technical Product Specification

Cooling Subsystem Intel® Server System SR2600UR TPS
32 Intel order number E45274-011 Revision 1.8
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.
 The fan module houses two different fan sizes: System fans 1 and 2 use an 80-mm fan;
System fan 3 uses a 60-mm fan.
 Each fan is designed for tool-less insertion to or removal from the fan module housing.
For instructions on installing or removing a fan module, see the Intel
®
Server System
SR2600UR/SR2625UR 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 external
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 is responsible for cooling a specific zone of the system. If the components in
the zone begin to exceed a safe operating temperature as programmed by the SDR, the
Integrated BMC firmware increases the speed for the fans tied to that zone.
 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 midplane located next to the fan header. If
a fan fails, system management illuminates the fault LED for the failing fan.
Table 20. Non-redundant Fan Connector Pin Assingment
Pin
Signal Name
Description
1
Tachometer B
Reserved, unused by the non-redundant fan
2
PWM
Fan speed control signal
3
12 V
Power for fan
4
12 V
Power for fan
5
Tachometer A
Fan RPM sensor output
Two pulse per revolution for the 80-mm fan
Four pulses per revolution for the 60-mm fan
6
Return
Return path to ground
7
Return
Return path to ground
8
Fan Presence
Reserved, unused by the non-redundant fan
9
LED Cathode
Loopback signal to pin 10
10
LED Anode
Loopback signal to pin 9