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

Fan Connector

3 2

GND +12V

SENSE

nForce 780i SLI SPP/MCP fan connector.

Install the fan over the nForce 780i SLI SPP to draw heat from the MCP. The fans plug into a 3- pin connector.

NVIDIA Corporation

October 17, 2007 DU-03597-001_v01

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Nvidia 780I SLI manual Fan Connections, CPU Fan Connector