VIA Technologies EPIA, User Manual

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Installation
29
Clear CMOS: J10
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
that 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 cap
on pins 2-3 for about 5~10 seconds, then move the cap back to pins
1-2.
4. Replace 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.
WARNING: Except when clearing the RTC RAM, never remove the
cap on CLEAR_CMOS jumper default position. Removing the cap
will cause system boot failure. Avoid clearing the CMOS while the
system is on; it will damage the mainboard.
1-2: Normal (Default)
2-3: Clear CMOS
1 1