A.1 Intel® EM64T

•The motherboard is fully compatible with Intel® Pentium® 4 LGA775 processors running on 32-bit operating systems.

• The motherboard comes with a BIOS file that supports EM64T. You can download the latest BIOS file from the ASUS website (www.asus.com/ support/download/) if you need to update the BIOS file. See Chapter 2 for details.

•Visit www.intel.com for more information on the EM64T feature.

•Visit www.microsoft.com for more information on Windows® 64-bit OS.

Make sure to choose the right BIOS files according to the version of your mother board. Refer to your Printed Circuit Board (PCB) for version information.

Using the Intel® EM64T feature

To use the Intel® EM64T feature:

1.Install an Intel® Pentium® 4 CPU that supports the Intel® EM64T.

2.Install a 64-bit operating system (Windows® XP Professional x64 Edition).

3.Install the 64-bit drivers for the motherboard components and devices from the support CD.

4.Install the 64-bit drivers for expansion cards or add-on devices, if any.

Refer to the expansion card or add-on device(s) documentation, or visit the related website, to verify if the card/device supports a 64-bit system.

A.2 Enhanced Intel SpeedStep®

Technology (EIST)

•The motherboard comes with a BIOS file that supports EIST. You can download the latest BIOS file from the ASUS website (www.asus.com/ support/download/) if you need to update the BIOS. See Chapter 2 for details.

•Visit www.intel.com for more information on the EIST feature.

A.2.1 System requirements

Before using EIST, check your system if it meets the following requirements:

•Intel® Pentium® 4 processor with EIST support

•BIOS file with EIST support

•Operating system with EIST support (Windows® XP SP2/Linux 2.6 kernel or later versions)

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Appendix: CPU features