Gigabyte GA-X99-UD4P User Manual - Page 26
CPU_OPT Water Cooling CPU Fan Header, LED_CON1 I/O Shield Audio LED Power Connector
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6) CPU_OPT (Water Cooling CPU Fan Header) The fan header is 4-pin and possesses a foolproof insertion design. When connecting a fan cable, be sure to connect it in the correct orientation (the black connector wire is the ground wire). The speed control function requires the use of a fan with fan speed control design. 1 CPU_OPT Pin No. 1 2 3 4 Definition GND Speed Control Sense VCC 7) LED_CON1 (I/O Shield Audio LED Power Connector) The power connector provides power to the LEDs on the I/O shield on the motherboard back panel. Pin No. Definition 1 VCC 1 2 GND Hardware Installation - 26 -
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Hardware Installation
6)
CPU_OPT (Water Cooling CPU Fan Header)
The fan header is 4-pin and possesses a foolproof insertion design. When connecting a fan cable, be sure to
connect it in the correct orientation (the black connector wire is the ground wire). The speed control function
requires the use of a fan with fan speed control design.
Pin No.
Definition
1
GND
2
Speed Control
3
Sense
4
VCC
1
7)
LED_CON1 (I/O Shield Audio LED Power Connector)
The power connector provides power to the LEDs on the I/O shield on the motherboard back panel.
Pin No.
Definition
1
VCC
2
GND
1
CPU_OPT