Headers And Jumpers - Asus Q170M2/CDM/SI R2.0 Manual

1.6

Headers and Jumpers

1. 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, time, 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.
Q170M2/CDM/SI R2.0
Q170M2/CDM/SI R2.0 Clear RTC RAM
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.
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2. 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).
Q170M2/CDM/SI R2.0
Q170M2/CDM/SI R2.0 MONO_OUT connector
1-12
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.
You do not need to clear the RTC when the system hangs due to overclocking. For
system failure due to overclocking, use the CPU Parameter Recall (C.P.R.) feature.
Shut down and reboot the system, then the BIOS automatically resets parameter
settings to default values.
MONO_OUT
PIN 1
CLRTC
Chapter 1: Product introduction