Asus P4P8X: 1.8 Central Processing Unit (CPU)

1.8 Central Processing Unit (CPU)

1.8.1 Overview

The motherboard comes with a surface mount 478-pin Zero Insertion Force (ZIF)

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socket. The socket is designed for the Intel

Pentium

4 Processor in the 478-pin

package with 512KB L2 cache. This processor supports 533/400MHz front side

bus (FSB), and allows data transfer rates of up to 3.2GB/s. The socket will also

support the Intel Prescott CPU when available.

Gold Mark

Note in the illustration that the CPU has a

gold triangular mark on one corner. This

mark indicates the processor Pin 1 that

should match a specific corner of the

CPU socket.

Incorrect installation of the CPU into the socket may bend the pins and

severely damage the CPU!

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Notes on Intel

Hyper-Threading Technology

1. This motherboard supports Intel Pentium 4 CPUs with Hyper-Threading

Technology.

2. Hyper-Threading Technology is supported under Windows XP and later

versions only. If you are using any other operating systems, disable the

Hyper-Threading Techonology item in BIOS to ensure system stability and

performance.

3. It is recommended that you install WinXP Service Pack 1.

4. Make sure to enable the Hyper-Threading Technology item in BIOS before

installing a supported operating system.

5. For more information on Hyper-Threading Technology, visit www.intel.com/

info/hyperthreading.

To use the Hyper-Threading Technology on this motherboard:

1. Buy an Intel Pentium 4 CPU that supports Hyper-Threading Technology. Install

the CPU.

2. Power up the system and enter BIOS Setup (see Chapter 2). Under the

Advanced Menu, make sure that the item Hyper-Threading Technology is set

to Enabled. The item appears only if you installed a CPU that supports Hyper-

Threading Techonology.

3. Reboot the computer.

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Chapter 1: Product introduction

1.8.2 Installing the CPU

Follow these steps to install a CPU.

1. Locate the 478-pin ZIF socket on the motherboard.

2. Unlock the socket by pressing the

lever sideways, then lift it up to a 90°-

100° angle.

Socket Lever

90 -10

Make sure that the socket lever is lifted

up to 90°-100° angle, otherwise the

CPU does not fit in completely.

3. Position the CPU above the socket

such that its marked corner matches

the base of the socket lever.

4. Carefully insert the CPU into the

socket until it fits in place.

The CPU fits only in one correct orientation. DO NOT force the CPU into the

socket to prevent bending the pins and damaging the CPU!

5. When the CPU is in place, push

down the socket lever to secure the

CPU. The lever clicks on the side tab

to indicate that it is locked.

ASUS P4P8X motherboard user guide

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Gold Mark

6. Install a CPU heatsink and fan

following the instructions that came

with the heatsink package.

7. Connect the CPU fan cable to the

CPU_FAN1 connector on the

motherboard.