Name: Intel 925 - Pentium D 925 3.0GHz 800MHz 4MB-Cache Socket 775 CPU
Brand: Intel
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Introduction

Intel

82925X/82925XE MCH Datasheet 13

1 Introduction

The Intel

925X Express chipset and Intel

925XE Express chipset are designed for use with the

Intel

Pentium

4 processor in entry-level, uniprocessor, workstation platforms. The chipsets

contain two components: 82925X or 82925XE Memory Controller Hub (MCH) for the host

bridge and I/O Controller Hub 6 (ICH6) for the I/O subsystem. The MCH provides the interface

to the processor, main memory, PCI Express, and the ICH6. The ICH6 is the sixth generation I/O

Controller Hub and provides a multitude of I/O related functions. Figure 1-1 shows an example

system block diagram for the 925X/925XE Express chipset.

For great workstation application flexibility, the Intel

925X/925XE Express chipset is

specifically designed to support Intel

Extended Memory 64 Technology

(Intel

EM64T)

enabling 64-bit memory addressability. Select versions of the Pentium 4 processor support

Intel EM64T) as an enhancement to Intel's IA-32 architecture on workstation platforms. This

enhancement enables the processor to execute operating systems and applications written to take

advantage of Intel EM64T. Further details on the 64-bit extension architecture and programming

model can be found in the Intel

Extended Memory 64 Technology Software Developer Guide at

http://developer.intel.com/technology/64bitextensions/.

This document is the datasheet for the Intel

82925X MCH and Intel

82925XE MCH. Topics

covered include; signal description, system memory map, register descriptions, a description of

the MCH interfaces and major functional units, electrical characteristics, ballout definitions, and

package characteristics.

Note:

Intel

Extended Memory 64 Technology (Intel

EM64T) requires a computer system with a

processor, chipset, BIOS, operating system, device drivers and applications enabled for Intel

EM64T. Processor will not operate (including 32-bit operation) without an Intel EM64T-enabled

BIOS. Performance will vary depending on your hardware and software configurations. See

www.intel.com/info/em64t

for more information including details on which processors support

EM64T or consult with your system vendor for more information.

Note: Unless otherwise specified, the information in this document applies to both the 82925X MCH

and 82925XE MCH.

Note: Unless otherwise specified, ICH6 refers to the Intel

82801FB ICH6 and 82801FR ICHR I/O

Controller Hub components.

Brand

Intel

Model

925 - Pentium D 925 3.0GHz 800MHz 4MB-Cache Socket 775 CPU

Intel 925 - Pentium D 925 3.0GHz 800MHz 4MB-Cache Socket 775 CPU User Manual

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