1.6Central Processing Unit (CPU)

1.6.1 Overview

The Intel® Pentium® 4 processors 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.

Gold Arrow

P4U800-X

P4U800-X Socket 478

Incorrect installation of the CPU into the socket may bend the pins and severely damage the CPU!

Notes on Intel® Hyper-Threading Technology

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

Technology.

2.Make sure to enable the Hyper-Threading Technology item in the BIOS before installing a supported operating system.

3.To verify the Hyper-Threading feature, go to the Windows OS System Properties -> Hardware -> Device Manager -> Processors. The list should display two existing processors.

4.Hyper-Threading Technology is supported under Windows® XP™ and later versions only.

5.It is recommended that you install Windows® XP™ Service Pack 1.

6.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 the BIOS setup (See Chapter 2: BIOS Information). 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 Technology.

3.Reboot the computer.

ASUS P4U800-X motherboard

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