User Guide

ASUS P4B533 motherboard user guide

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11. Audio CODEC setting (3-pin AUDIO_SW)

(on audio models only)

This jumper allows you to enable or disable the audio CODEC on the

motherboard.

P4B533

P4B533 Audio CODEC Setting

AUDIO_SW

Enable

Disable

(Default)

12. 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 RAM

data in CMOS, that include system setup information such as system

passwords, is powered by the onboard button cell battery.

To erase the RTC RAM:

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

2. Remove the battery.

3. Place a jumper cap over the CLRTC jumper for about 5 seconds,

then remove the cap. DON”T leave the cap on the jumper!

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.

Disable the onboard audio CODEC if you desire to install a PCI audio

card into a PCI slot.

P4B533

P4B533 Clear RTC RAM

CLRTC

Short Jumper

to Clear CMOS

Intel I/O

Controller

Hub

(ICH4)