EVGA NFORCE 780I SLI - Manual (Page 34)

Hardware Installation
Fan Connections
There are five fan connections on the motherboard. The fan speed can be
detected and viewed in the
PC Health Status
section of the CMOS Setup. The
fans are automatically turned off after the system enters S3, S4 and S5 mode.
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
GND SENSE
PWR CONTROL
Install the fan over the nForce 780i SLI SPP to
draw heat from the MCP. The fans plug into a 3-
pin connector.
Fan Connector
3 2
GND
+12V
SENSE
nForce 780i SLI SPP/MCP fan connector.