Intel SC5400LX User Manual
Intel® Server Chassis SC5400 5U Kit TPS
System Cooling
Revision: 1.0
23
4.5 Fan Header Connector Descriptions
All system fan headers use pulse width modulated (PWM) fans for cooling the processors in the
chassis. PWM fans have an improved RPM range (20% to 100% rated fan speed) when
compared to voltage controlled fans.
chassis. PWM fans have an improved RPM range (20% to 100% rated fan speed) when
compared to voltage controlled fans.
Base Chassis Fans are a 4-wire/4-pin style designed to plug into 4-pin or 6-pin SSI Fan
headers. When plugged into a 6-pin header, only the first four signals are used (Pwr, Gnd,
Tach, PWM)
headers. When plugged into a 6-pin header, only the first four signals are used (Pwr, Gnd,
Tach, PWM)
LX Chassis fans are a 6-wire/6-pin style designed to plug into 6-pin headers. The extra signals
provide for fan redundancy and failure indications (Pwr, Gnd, Tach, PWM, Presence, Failure).
provide for fan redundancy and failure indications (Pwr, Gnd, Tach, PWM, Presence, Failure).
Server Boards installed in this chassis may feature an additional two 4-pin CPU fan headers
and two 4-pin System fan headers. These connections are not required for use with the Intel®
Server Chassis SC5400.
and two 4-pin System fan headers. These connections are not required for use with the Intel®
Server Chassis SC5400.
To assist with fan connections in the system, the system fans are numbered one through four
and color-coded. These correspond to fan header numbers on the server board. Fan 1 and fan
2 connectors are white in color and the fan 3 and fan 4 connectors are blue in color. These
colors should also match between server board and fans.
and color-coded. These correspond to fan header numbers on the server board. Fan 1 and fan
2 connectors are white in color and the fan 3 and fan 4 connectors are blue in color. These
colors should also match between server board and fans.