Nvidia MCP 78S User Manual page 21

(8) FAN Power Headers: SYSFAN1, SYSFAN2, CHAFAN(3-pin), CPUFAN (4-pin)
These connectors support cooling fans of 350mA (4.2 Watts) or less, depending
on the fan manufacturer, the wire and plug may be different. The red wire
should be positive, while the black should be ground. Connect the fan's plug to
the board taking into consideration the polarity of connector.
(9) CD Audio-In Headers (4-pin): CDIN1
CDIN are the connectors for CD-Audio Input signal.
CD-ROM CD-Audio output connector.
PWRLED
Pin 1
SPEAK
Pin 1
System Case Connections
CPUFAN
4
1
SYSFAN2
3
1
SYSFAN1
CHAFAN
3
3
1
1
FAN Power Headers
CDIN
1 4
CD Audio-In Headers
17
JW FP
Pin 1
Please connect it to