Asus Z170I PRO GAMING User Guide - Page 22

Headers, Clear RTC RAM 2-pin CLRTC, To erase the RTC RAM, RTC Battery header 2-pin BATT_CON

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+3V_BAT GND 1.7 Headers 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 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. CLRTC PIN 1 Z170I PRO GAMING 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 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. • 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. 2. RTC Battery header (2-pin BATT_CON) This connector is for the lithium CMOS battery. BATT_CON PIN 1 Z170I PRO GAMING RTC battery header GND VBAT 1-12 Chapter 1: Product introduction

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1-12
Chapter 1: Product introduction
1.7
Headers
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 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.
•
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.
2.
RTC Battery header (2-pin BATT_CON)
This connector is for the lithium CMOS battery.
Z170I PRO GAMING RTC battery header
PIN 1
GND
VBAT
BATT_CON
Z170I PRO GAMING Clear RTC RAM
CLRTC
+3V_BAT
GND
PIN 1