Asus TUF GAMING B450M-PLUS II Manual page 14

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11. 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.
12. 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.
13. Front panel audio header
This header is for a chassis-mounted front panel audio I/O module that
supports HD audio standard. Connect one end of the front panel audio I/O
module cable to this header.
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14. Digital audio connector
This connector is for an additional Sony/Philips Digital Interface (S/PDIF) port.
Connect the S/PDIF Out module cable to this connector, then install the module
to a slot opening at the back of the system chassis.
15. Speaker header
The 4-pin header is for the chassis-mounted system warning speaker. The
speaker allows you to hear system beeps and warnings.
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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.
We recommend that you connect a high-definition front panel
audio module to this header to avail of the motherboard's high-
definition audio capability.
If you want to connect a high-definition front panel audio module
to this header, set the Front Panel Type item in the BIOS setup to
[HD Audio]. By default, this header is set to [HD Audio].
CLRTC
PIN 1
PIN 1
AAFP
HD-audio-compliant
pin definition
SPDIF_OUT
SPEAKER
PIN 1
Chapter 1: Product Introduction
COM