Chapter 1: Introduction
1-9
1-2 Chipset Overview
Intel’s E7221 (Copper River) chipset, designed for the server market, con-
sists of the following components: the Graphics Memory Controller Hub
(GMCH), Intel PCI-X Hub (PXH-V), and Intel I/O Controller Hub (ICH6R). The
E7221 (Copper River) chipset provides the performance and feature-set
required for the entry level single-processor server solutions.
Graphics Memory Controller Hub (GMCH)
The function of the GMCH is to manage the data flow between five inter-
faces: Processor/Host interface (FSB), System Memory Interface (DRAM
controller), PCI Express Interface, Direct Media Interface (DMI) and PXH-V
Interface. The GMCH is optimized for the Prescott processors in an
LGA775 Package. It supports one or two channels of unbuffered, ECC/Non
ECC DDR2 533/400 SDRAM.
The ACPI component provides the data buffering and interface arbitration
required to ensure that system interfaces operate efficiently. The Direct
Media Interface (DMI) is a point-to-point interconnect between the Copper
River GMCH and the ICH6.
Intel ICH6R System Features
The I/O Controller Hub provides the I/O subsystem with access to the rest
of the system. Functions and capabilities include:
*PCI Express Base Specification, Rev. 1.0a-compliant
*PCI 2.3
*ACPI Power Management Logic Support
*USB host interface
*Enhanced DMA Controller
*System Management Bus
*Low Pin Count (LPC) Interface
*Firmware Hub (FWH) Interface
Graphics Features/Display
The Copper River GMCH provides an integrated server-quality onboard
graphics.
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