Asus TUF Z390M-PRO GAMING [24/86] Chapter 1

1-10

Chapter 1: Product Introduction

Chapter 1

1.1.7 Jumpers

1. Clear RTC RAM jumper (2-pin CLRTC)

Thisjumper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.

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<Delete>keyduringthebootprocessandenterBIOSsetuptore-enter

data.

ExceptwhenclearingtheRTCRAM,neverremovethecaponCLRTCjumperdefault

position.Removingthecapwillcausesystembootfailure!

• Ifthestepsabovedonothelp,removetheonboardbatteryandmovethejumper

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.For

system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parameter

settingstodefaultvalues.

• Duetothechipsetbehavior,ACpoweroffisrequiredtoenableC.P.R.function.You

mustturnoffandonthepowersupplyorunplugandplugthepowercordbefore

rebootingthesystem.

TUF Z390M-PRO GAMING Clear RTC RAM

CLRTC

+3V_BAT

GND

PIN 1