Jumpers - mATX AIMB-763 Series User Manual

1.9 Jumpers

1. Clear RTC RAM (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 sys-
tem 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 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 <Del> key during the boot process and enter
BIOS setup to re-enter data.
Caution!
AIMB-763 User Manual
Except when clearing the RTC RAM, never
remove the cap on CLRTC jumper default posi-
tion. Removing the cap will cause system boot
failure!
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