Asus PRIME Z270-K PRIME Z270-K Users manual English - Page 15

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

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• System warning speaker (4-pin SPEAKER) This 4-pin connector is for the chassis-mounted system warning speaker. The speaker allows you to hear system beeps and warnings. • ATX power button/soft-off button (2-pin PWR_SW) This connector is for the system power button. • Reset button (2-pin RESET) This 2-pin connector is for the chassis-mounted reset button for system reboot without turning off the system power. Clear RTC RAM (2-pin CLRTC) 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. +3V_BAT GND CLRTC PIN 1 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. 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. USB+5V USB_P11USB_P11+ GND NC USB+5V USB_P13USB_P13+ GND NC USB 2.0 connectors (10-1 pin USB1112, USB1314) Connect a USB module cable to any of these connectors, then install the module to a slot opening at the back of the system chassis. These USB connectors comply with USB 2.0 specifications and supports up to 480Mbps connection speed. USB1112 USB1314 PIN 1 PIN 1 USB+5V USB_P12USB_P12+ GND USB+5V USB_P14USB_P14+ GND RXD DTR DSR CTS 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 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 ASUS PRIME Z270-K 1-5

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ASUS PRIME Z270-K
1-5
•
System warning speaker (4-pin SPEAKER)
This 4-pin connector is for the chassis-mounted system warning speaker.
The speaker allows you to hear system beeps and warnings.
•
ATX power button/soft-off button (2-pin PWR_SW)
This connector is for the system power button.
•
Reset button (2-pin RESET)
This 2-pin connector is for the chassis-mounted reset button for system
reboot without turning off the system power.
Clear RTC RAM (2-pin CLRTC)
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.
CLRTC
+3V_BAT
GND
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.
USB 2.0 connectors (10-1 pin USB1112, USB1314)
Connect a USB module cable to any of these
connectors, then install the module to a slot opening at
the back of the system chassis. These USB connectors
comply with USB 2.0 specifications and supports up to
480Mbps connection speed.
USB+5V
USB_P11-
USB_P11+
GND
NC
USB+5V
USB_P12-
USB_P12+
GND
USB1112
PIN 1
USB+5V
USB_P13-
USB_P13+
GND
NC
USB+5V
USB_P14-
USB_P14+
GND
USB1314
PIN 1
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
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