User Manual

1-10
Chapter 1: Product Introduction
Chapter 1
1.1.7 Jumpers
1. Clear RTC RAM (3-pin CLRTC1)
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. Movethejumpercapfrompins1–2(default)topins2–3.Keepthecaponpins
2–3forabout5–10seconds,thenmovethecapbacktopins1–2.
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
reenter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.