MSI 945GC Networks - Manual (Page 27)

2-11
Hardware Setup
Fan Power Connector: CPUFAN1, SYSFAN1, AUXFAN1
The fan power connectors support system cooling fan with +12V. W hen connecting
the wire to the connectors, always note that the red wire is the positive and should
be connected to the +12V; the black wire is Ground and should be connected to GND.
If the mainboard has a System Hardware Monitor chipset onboard, you must use a
specially designed fan with speed sensor to take advantage of the CPU fan control.
Serial Port Connector: COM2
This connector is a 16550A high speed communications port that sends/receives 16
bytes FIFOs. You can attach a serial device to it through the optional serial port
bracket.
PIN SIGNAL DESCRIPTION
1 DCD Data Carry Detect
2 SIN Serial In or Receive Data
3 SOUT Serial Out or Transmit Data
4 DTR Data Terminal Ready
5 GND Ground
6 DSR Data Set Ready
7 RTS Request To Send
8 CTS Clear To Send
9 VCC_COM Power Source
Pin Definition
AUXFAN1
SE NS OR
+1 2V
GND
SYSFAN1
SE NS OR
+1 2V
GND
COM2
1 9
2 10
Important
Please refer to the recommended CPU fans at CPU vendor ’s official website
or consult the vendors for proper CPU cooling fan.
CPUFAN1
SE NS OR
+1 2V
GND
PDF created with pdfFactory Pro trial version www.pdffactory.com