2.3Installing the Central Processing Unit (CPU)

In the event of conflict between this instruction and other references cited herein, instructions in this system manual takes precedence.

2.3.1 Overview

The motherboard comes with dual surface mount 604-pin Zero Insertion Force (ZIF) sockets. The sockets are designed for the Intel Xeon Processor in the 604-pin package with 512KB L2 cache. The processor includes the Intel® NetBurst™ micro-architecture that features the hyper- threading technology, rapid execution engine, 533/400MHz system bus, and execution trace cache. Together, these attributes improve system performance by allowing higher core frequencies, faster execution of integer instructions, and data transfer rate of up to 4.26GB/s.

Prestonia

400Mhz FSB

Gold Arrow

Prestonia

533Mhz FSB

PR-DLS

PR-DLS533 Socket 604

Gold Arrow

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!

1. The motherboard supports either one or two CPUs. If you are installing only one CPU, you MUST install it in CPU socket 1. Otherwise, the red motherboard LED will light up as warning.

2.Use Prestonia CPUs with the same FSB speed and specifications when installing on both CPU sockets.

CPU Socket 1 (outer socket)

CPU Socket 2 (inner socket)

User’s Manual

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