Gigabyte Z390 UD User Manual - Page 14

3/4) CPU_FAN/SYS_FAN1/2/3 (Fan Headers) All fan headers on this motherboard are 4-pin. Most fan headers possess a foolproof insertion design. When connecting a fan cable, be sure to connect it in the correct orientation (the black connector wire Gis.QBOFM the ground wire). The speed control function requires the use of a fan with fan speed control design. For optimum heat dissipation, it is recommended that a system fan be installed inside the chassis. 1 CPU_FAN/SYS_FAN1 1 SYS_FAN3 1 SYS_FAN2 Pin No. 1 2 3 4 Definition GND Voltage Speed Control Sense PWM Speed Control •• Be sure to connect fan cables to the fan headers to prevent your CPU and system from overheating. Overheating may result in damage to the CPU or the system may hang. •• These fan headers are not configuration jumper blocks. Do not place a jumper cap on the headers. DEBUG PORT 5) LED_C (RGB LED Strip Header) The header can be used to connect a standard 5050 RGB LED strip (12V/G/R/B), with maximum power rating of 2A (12V) and maximum length of 2m. 1 RGB LED Strip 1 12V Pin No. 1 2 3 4 Definition 12V G R B Connect your RGB LED strip to the header. The power pin (marked with a triangle on the plug) of the LED strip must be connected to Pin 1 (12V) of the digital LED strip header. Incorrect connection may lead to the damage of the LED strip. For how to turn on/off the lights of the LED strip please visit the "Unique Features" webpage of GIGABYTE's website. Before installing the devices, be sure to turn off the devices and your computer. Unplug the power cord from the power outlet to prevent damage to the devices. - 14 -