Asus PRIME Z270M-PLUS PRIME Z270M-PLUS Users manual ENGLISH - Page 15

Clear RTC RAM 2-pin CLRTC, To erase the RTC RAM

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RXD DTR DSR CTS 10. Serial port connector (10-1 pin COM) This connector is for a serial (COM) port. Connect the serial port module cable to this connector, then install the module to a slot opening at the back of the system chassis. COM PIN 1 DCD TXD GND RTS RI 11. Clear RTC RAM (2-pin CLRTC) This header allows you to clear the Real Time Clock (RTC) RAM in CMOS. You can clear the CMOS memory of date, and system setup parameters by erasing the CMOS RTC RAM data. The onboard button cell battery powers the RAM data in CMOS, which include system setup information such as 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 key during the boot process and enter BIOS setup to re-enter data. +3V_BAT GND CLRTC PIN 1 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. Digital audio connector (4-1 pin SPDIF_OUT) 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. +5V SPDIFOUT GND SPDIF_OUT 13. Mono out header (2-pin MONO_OUT) This internal mono out header allows connection to an internal, low power speaker for basic system sound capability. The subsystem is capable of driving a speaker load of 4 Ohms at 2 Watts (rms). MONO_OUT PIN 1 R_OUTR_OUT+ AGND NC SENSE1_RETUR SENSE2_RETUR 14. Front panel audio connector (10-1 pin AAFP) This connector is for a chassis-mounted front panel audio I/O module that supports HD Audio. Connect one end of the front panel audio I/O module cable to this connector. AAFP PIN 1 AGND NC NC NC MIC2 MICPWR Line out_R NC Line out_L PORT1 L PORT1 R PORT2 R SENSE_SEND PORT2 L HD-audio-compliant Legacy AC'97 pin definition compliant definition ASUS PRIME Z270M-PLUS 1-5

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ASUS PRIME Z270M-PLUS
1-5
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.
CLRTC
+3V_BAT
GND
PIN 1
12.
Digital audio connector (4-1 pin SPDIF_OUT)
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.
SPDIF_OUT
+5V
SPDIFOUT
GND
10.
Serial port connector (10-1 pin COM)
This connector is for a serial (COM) port. Connect the serial port
module cable to this connector, then install the module to a slot
opening at the back of the system chassis.
PIN 1
COM
DCD
TXD
GND
RTS
RI
RXD
DTR
DSR
CTS
11.
Clear RTC RAM (2-pin CLRTC)
This header allows you to clear the Real Time Clock (RTC) RAM in CMOS. You can
clear the CMOS memory of date, and system setup parameters by erasing the CMOS
RTC RAM data. The onboard button cell battery powers the RAM data in CMOS, which
include system setup information such as system passwords.
13.
Mono out header (2-pin MONO_OUT)
This internal mono out header allows connection to an internal, low
power speaker for basic system sound capability. The subsystem is
capable of driving a speaker load of 4 Ohms at 2 Watts (rms).
R_OUT-
R_OUT+
PIN 1
MONO_OUT
14.
Front panel audio connector (10-1 pin AAFP)
This connector is for a chassis-mounted front panel audio
I/O module that supports HD Audio. Connect one end of
the front panel audio I/O module cable to this connector.
AAFP
AGND
NC
SENSE1_RETUR
SENSE2_RETUR
PORT1 L
PORT1 R
PORT2 R
SENSE_SEND
PORT2 L
HD-audio-compliant
pin definition
PIN 1
AGND
NC
NC
NC
MIC2
MICPWR
Line out_R
NC
Line out_L
Legacy AC’97
compliant definition