Asus RS120-E4/PA4 - Manual (Page 52)

Chapter 4: Motherboard information 4-4
Except when clearing the RTC RAM, never remove the cap on CLRTC jumper
default position. Removing the cap will cause system boot failure!
4.2. Jumpers
1.. Clear.RTC.RAM.(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 includes system setup information
such as system passwords.
To erase the RTC RAM:
1. Turn OFF the computer and unplug the power cord.
2. Remove the onboard battery.
3. 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.
4. Re-install the battery.
5. Plug the power cord and turn ON the computer.
6. Hold down the key during the boot process and enter BIOS setup
to re-enter data.
P5M2-R
®
P5M2-R.Clear.RTC.RAM
CLRTC1
Normal
(Default)
Clear CMOS
2
1
2
3