Gigabyte Z490 UD AC User Manual page 14

3/4) CPU_FAN/SYS_FAN1/2/3/4 (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 is
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
SYS_FAN1
CPU_FAN/SYS_FAN2
• 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.
5) D_LED1/D_LED2 (Digital LED Strip Headers)
The headers can be used to connect a standard 5050 addressable LED strip, with maximum power rating
of 5A (5V) and maximum number of 1000 LEDs.
1
D_LED1 D_LED2
Addressable LED
Strip
1
DEBUG
6) LED_C1/LED_C2 (RGB LED Strip Headers)
PORT
The headers 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
LED_C1 LED_C2
RGB LED Strip
1
12V
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.
1 1
SYS_FAN3/SYS_FAN4
Pin No. Definition
1 V (5V)
1
2 D
3 No Pin
4 G
Connect your addressable 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 of the addressable LED strip header. Incorrect connection may
lead to the damage of the LED strip.
Pin No. Definition
1 12V
2 G
1
3 R
4 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 this header. Incorrect connection may lead to the damage
of the LED strip.
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Pin No. Definition
1 GND
2 Voltage Speed Control
3 Sense
4 PWM Speed Control
1 2 3