Asus PRIME B660M-A WIFI D4 Manual page 14

12. AURA RGB header
The RGB header allows you to connect an RGB LED strip.
The RGB header supports a 5050 RGB multi-color LED strip (12V/G/R/B), with a maximum
power rating of 3A (12V), and no longer than 3m.
Before you install or remove any component, ensure that the ATX power supply is switched
off or the power cord is detached from the power supply. Failure to do so may cause severe
damage to the motherboard, peripherals, or components.
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13. RTC Battery connector (2-pin BATTERY)
This connector is for the lithium CMOS battery.
14. Clear CMOS header
This header allows you to clear the CMOS RTC RAM data of the system setup
information such as date, time, and system passwords.
To erase the RTC RAM:
1. Turn OFF the computer and unplug the power cord.
2. Use a metal object such as a screwdriver to short the two pins.
3. Plug the power cord and turn ON the computer.
4. Hold down the <Del> key during the boot process and enter BIOS Setup to re-
enter data.
If the steps above do not help, remove the onboard battery and short the two pins again to
clear the CMOS RTC RAM data. After clearing the CMOS, reinstall the battery.
15. COM Port header
This header is for a serial (COM) port. Connect the serial port module cable to
this header, then install the module to a slot opening at the back of the system
chassis.
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Actual lighting and color will vary with LED strip.
If your LED strip does not light up, check if the RGB LED extension cable and the
RGB LED strip are connected in the correct orientation, and the 12V connector is
aligned with the 12V header on the motherboard.
The LED strip will only light up when the system is powered on.
The LED strip is purchased separately.
BATTERY
PIN 1
Chapter 1: Product Introduction
VBAT
GND
PIN 1
CLRTC
PIN 1
COM