20 – English Mainboard D2778
20 Fujitsu Technology Solutions
Board Installation
Fan Connector (internal)
Pin 1
Pin 4
Pin1: GND
Pin2: +12V Power
Pin3: FAN Sense
Pin4: Fan PWM
This 4-pin fan connector supports tachometer monitoring.
There are five 4-pin fan connectors on D2618. Use these connectors to connect chassis and
processor cooling fans to your motherboard. Cooling fans can keep the system stable and
reliable for its product’s life.
Intrusion connector (internal)
PIN Signal
1 GND
2 open
3 Intrusion switch present
PC2004 PSU Connector (PC2004)
PIN Signal
1 Not connected
2 PS Fan PWM
3 Not connected
4 Sense
5 Not connected
6 Not connected
7 Not connected
8 GND
Pin 1
Pin 1