Supermicro PIIISEA, Руководство пользователя

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Chapter 1: Introduction
1-13
Introduction
1-2 Chipset Overview
Intel's 810 chipset was developed to bring new features to value PC plat-
forms. Integrated audio and graphics eliminate the cost of discrete compo-
nents and free up space for additional peripheral cards. These onboard
features are based on the AC'97 2.1 compliant link for audio and telephony
CODECs and the onboard graphics controller chip. The main bridge of the
810 is the Graphics and Memory Controller Hub (GMCH), which enables a
66, 100 or 133 MHz front side bus speed. An I/O Hub Controller (ICH)
integrates PCI peripherals and I/O functions with a dedicated 33 MHz PCI
bus. This hub separates the I/O devices from the GMCH for improved
performance. The 810's accelerated hub interface provides a 266 MB/sec
bandwidth between the GMCH and ICH for smoother-streaming video and
audio.
Graphics Memory Controller Hub (GMCH)
The GMCH is the host bridge of the 810 chipset and provides the interconnect
between the SDRAM and the rest of the system logic. It includes a system
memory DRAM controller, which supports a 64-bit 100 MHz DRAM array, and
utilizes Direct AGP (integrated AGP) technology to create vivid 2D and 3D effects
and images. Direct AGP features D.V.M.T. (Dynamic Video Memory Tech-
nology), which provides richer graphics by dynamically utilizing memory to
meet changing graphic demands efficiently.
I/O Controller Hub (ICH)
The ICH is the I/O Controller Hub for the I/O subsystem and integrates many
of the functions required by today's PC platforms. It provides the interface
to the PCI Bus and communicates with the GMCH over a dedicated hub
interface. There are two versions of the ICH: the ICH and the ICH0. The
PIIISED/PIIISEA has the ICH version, which supports Ultra DMA/66.
Audio Modem Riser (AMR)
The AMR is a new modular specification that integrates the audio/modem
functions on the motherboard by assigning the analog I/O functions to a
riser card. Integration of the audio/modem function enhances system capa-
bilities while reducing costs. The AMR interface is based on an AC-link that
is compliant with Intel’s Audio Codec ’97 version 2.1 specification.