Asus M3N78-CM User Manual download pdf (Page 26)

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 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. 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. Reinstall 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 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!

You do not need to clear the RTC when the system hangs due to overclocking. For system

failure due to overclocking, use the CPU Parameter Recall (C.P.R) feature. Shut down and

reboot the system so the BIOS can automatically reset parameter settings to default values.

M3N78-CM

Clear RTC RAM

CLRTC

Normal

Clear RTC

(Default)

1 2 2 3

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Asus M3N78-CM User Manual Page 26