EVGA NFORCE 650I - Manual (Page 34)

Hardware Installation
23
Fan Connections
There are two fan connections, the system fan and the CPU fan. The fan speed
can be detected and viewed in the
System Monitor section of the CMOS Setup.
Both fans are automatically turned off after the system enters S3, S4 and S5
mode.
COM1
The motherboard kit provides an additional serial COM header for your
machine. Connect one side of a switching cable to the header and then attach
the serial COM device to the other side of the cable.
FDD Connector
The motherboard supports a standard 360K, 720K, 1.2M, 1.44m, and a 2.88M
floppy disk drive (FDD).
Note that the CPU fan cable can be
either a 3-pin or a 4-pin connector.
Connect a 3-pin connector to pins 1, 2,
and 3 on the motherboard connector.
CPU Fan Connector
4 3 2 1
GND SENSE
PWR CONTROL
Fan Connector
3 2 1
GND
+12V
SENSE
System fan connector
CPU fan connector