Relion 1900e/2900e Manual
Revision 1.0
100
10.4
System Fan Connectors
The server board is capable of supporting up to a total of six system fans. Each system fan includes a pair of
fan connectors; a 1x10 pin connector to support a dual rotor cabled fan, typically used in 1U system
configurations, and a 2x3 pin connector to support a single rotor hot swap fan assembly, typically used in 2U
system configurations. Concurrent use of both fan connector types for any given system fan pair is not
supported.
Dual Rotor Fixed SYS_FAN # (1-6)
Hot Swap SYS_FAN # (1-6)
Signal Description
Pin#
Signal Description Pin# Pin# Signal Description
LED_FAN
10
GROUND
1
2
P12V FAN
LED_FAN_FAULT
9
FAN TACH
3
4
FAN PWM
SYS FAN PRSNT
8
SYS FAN PRSNT
5
6
LED FAN FAULT
GROUND
7
GROUND
6
FAN_TACH_#
5
P12V_FAN
4
P12V_FAN
3
FAN PWM
2
FAN1
1
Figure 29. System Fan Connector Pin-outs
Each connector is monitored and controlled by on-board platform management. On the server board, each
system fan connector pair is labeled “SYS_FAN #”, where # = 1 – 6. The following illustration shows the
location of each system fan connector on the server board.
Figure 30. System Fan Connector Placement
Hot Swap Fan
Fixed Mount Fan
Pin 1
Pin 1
Hot Swap Fan Connectors
Sys Fan
#1
Sys Fan
#2
Sys Fan
#3
Sys Fan
#4
Sys Fan
#5
Sys Fan
#6
Sys Fan
#1
Sys Fan
#2
Sys Fan
#3
Sys Fan
#4
Sys Fan
#5
Sys Fan
#6
Dual Rotor Cabled Fan Connectors
Summary of Contents for Relion 1900e
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