Asus P7F-C/SAS User Manual download pdf (Page 39)

ASUS P7F-C Series 2-21

2.6 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 include system setup information such

as system passwords.

To erase the RTC RAM:

1. Turn OFF the computer and unplug the power cord.

2. 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.

3. Plug the power cord and the computer turns on automatically.

4. Hold down the <Del> key during the boot process and enter BIOS setup

to re-enter data.

Except when clearing the RTC RAM, never remove the cap on CLRTC jumper

default position. Removing the cap will cause system boot failure!

If the steps above do not help, remove the onboard battery and move the

jumper again to clear the CMOS RTC RAM data. After the CMOS clearance,

reinstall the battery.

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Asus P7F-C/SAS User Manual Page 39