Chipset Overview; Mcp55-V Pro Media And Communications Processor; Hypertransport Technology - Supero H8DMT+ User Manual

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Chipset Overview

The H8DMT+/H8DMT-INF+ motherboard is based on the nVidia MCP55-V Pro
chipset. The nVidia MCP55 Pro functions as Media and Communications Proces-
sor (MCP). Controllers for the system memory are integrated directly into AMD
Opteron processors.

MCP55-V Pro Media and Communications Processor

The MCP55-V Pro is a single-chip, high-performance HyperTransport peripheral
controller. It includes a 28-lane PCI Express interface, an AMD Opteron 16-bit Hyper
Transport interface link, a four-port Serial ATA interface, a dual-port Gb Ethernet
interface and a six-port USB 2.0 interface. This hub connects directly to the CPU.

HyperTransport Technology

HyperTransport technology is a high-speed, low latency point to point link that was
designed to increase the communication speed by a factor of up to 48x between
integrated circuits. This is done partly by reducing the number of buses in the
chipset to reduce bottlenecks and by enabling a more effi cient use of memory
in multi-processor systems. The end result is a signifi cant increase in bandwidth
within the chipset.
Chapter 1: Introduction
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