Product guide

115
Chapter Six Technical Reference
PIN Signal Pin Signal
1 +3.3V 13 +3.3V
2 +3.3V 14 -12V
3 COM 15 COM
4 +5V 16 PS_ON
5 COM 17 COM
6 +5V 18 COM
7 COM 19 COM
8 PWR_OK 20 -5V
9 +5VSB 21 +5V
10 +12V 22 +5V
11 +12V 23 +5V
12 +3.3V 24 COM
Main Power Connector Pinout
Fan Interface
The server board has five 3-pin fan connectors that are shrouded and keyed. Two
are located next to the processor sockets (one for each processor); each is intended
to be used for a tachometer fan heat sink.
Fan connectors 2A and 2B cannot be used simultaneously. If you plug fans into both
connectors, the fans will not operate properly.
Fan Connector Pinout
PIN Signal
1 GND
2 +12V
3 Fan Sensor
Caution