COMMELL LV-679 - Manual (Page 35)

LV-679 User’s Manual
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2.14 < Fan Installation >
The board provides one 4-pin fan connectors supporting smart fan for CPU cooler
and two 3-pin cooler fan connectors for system and Northbridge chip.
Connector: CPUFAN
Type: 4-pin fan wafer connector
Pin Description Pin Description
1 Ground 2 +12V
3 Fan Speed Detection 4 Fan Control
Connector: SYSFAN
Type: 3-pin fan wafer connector
Pin Description Pin Description Pin Description
1 Ground 2 +12V 3 Sense
Connector:NBFAN
Type: 3-pin fan wafer connector
Pin Description Pin Description Pin Description
1 Ground 2 +12V 3 Sense
CPUFAN
NBFAN
SYSFAN
4 1
3
1
1
3