User Manual

ASUS Pro E800 G4
3-5
3.3 Onboard jumpers
1. Clear RTC RAM jumper
The Clear RTC RAM jumper allows you to clear the Real Time Clock (RTC) RAM
in the CMOS, which contains the date, time, system passwords, and system setup
parameters.
To erase the RTC RAM:
1. Turn OFF the computer and unplug the power cord.
2. Move the jumper cap from the default pins 1-2 to pins 2-3. Keep the cap on pins
2-3 for about 5 to 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
re-enter data.
DO NOT short-circuit the pins except when clearing the RTC RAM. Short-circuiting or
placing a jumper cap will cause system boot failure!
If the steps above do not help, remove the onboard button cell battery and move the jumper
again to clear the CMOS RTC RAM data. After clearing the CMOS, reinstall the button cell
battery.