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10.
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 <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.
11.
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.
12.
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.
13.
Front panel audio connector (10-1 pin AAFP)
This connector is for a chassis-mounted front panel
audio I/O module that supports either HD Audio or
legacy AC`97 audio standard. Connect one end of the
front panel audio I/O module cable to this connector.
•
We recommend that you connect a high‑definition front panel audio module to this
connector to avail of the motherboard's high‑definition audio capability.
•
If you want to connect a high‑definition front panel audio module to this connector,
set the Front Panel Type item in the BIOS setup to [HD]. If you want to connect
an AC'97 front panel audio module to this connector, set the item to [AC97]. By
default, this connector is set to [HD].
ASUS A88XM-E/USB 3.1
CLRTC
PIN 1
SPDIF_OUT
COM
PIN 1
AAFP
PIN 1
HD-audio-compliant
Legacy AC'97
pin definition
compliant definition
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