Asus TUF Z270 Mark 1 User Manual

Also see for PRIME Z270-A Series: Bios manual Quick start guide

Contents

ASUS TUF Z270 MARK 11-11Chapter 11.1.7 Jumpers1. Clear RTC RAM jumper (2-pin CLRTC)This jumper allows you to clear the Real Time Clock (RTC) RAM in CMOS. You canclear the CMOS memory of date, time, and system setup parameters by erasing theCMOS RTC RAM data. The onboard button cell battery powers the RAM data inCMOS, 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. Short-circuit pin 1-2 with a metal object or jumper cap for about 5-10 seconds.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-enterdata.Except when clearing the RTC RAM, never place a metal object or jumper cap on theCLRTC jumper. Placing a metal object or jumper cap will cause system boot failure!• If the steps above do not help, remove the onboard battery and place a metal objector jumper cap again to clear the CMOS RTC RAM data. After the CMOS clearance,reinstall the battery.• You do not need to clear the RTC when the system hangs due to overclocking. Forsystem failure due to overclocking, use the C.P.R. (CPU Parameter Recall) feature.Shut down and reboot the system so the BIOS can automatically reset parametersettings to default values.• Due to the chipset behavior, AC power off is required to enable C.P.R. function. Youmust turn off and turn on the power supply or unplug and plug the power cord beforerebooting the system.