User`s manual

CyberResearch
®
Motherboards MXGD Series
CyberResearch, Inc. 51
25 Business Park Drive P: [phone]; F: [phone]
Branford, CT USA www.cyberresearch.com
PIN NO. DESCRIPTION
1 GND
2 +12V
3 Rotation Signal
4 Control
Table 4-8: +12V Fan Connector Pinouts
4.2.7 Fan Connector (+12V) (System Cooling Fans)
CN Label: IO_FAN1, IO_FAN3
CN Type:
3-pin header
CN Location: See Figure 4-7
CN Pinouts: See Table 4-8
Two system cooling fan connectors provide a 12V, 500mA current to two system cooling
fans. The connectors have a "rotation" pin to get rotation signals from fans and notify the
system so the system BIOS can recognize the fan speed. Please note that only specified
fans can issue the rotation signals.