Chapter 1: Introduction
1-9
1-2 Chipset
Overview
(865G:P4SPA+,
865PE:P4SPE)
Intel’s Sprindale (865G, 865PE) chipset is comprised of two primary components:
the Graphics Memory Controller Hub (GMCH) and the I/O Controller Hub (ICH5).
The Sprindale (865G, 865PE) provides the performance and feature-set required
for high-end dual/single-processor desktop and workstation systems.
Graphics Memory Controller Hub (GMCH)
The GMCH provides the host (CPU) interface, DDR (Memory) interface, AGP
interface, ICH5(Hub), CSA interface and 8xAGP interface for the Sprindale (865G,
865PE) chipset. The CPU interface supports the Pentium 4 Processor subset of
the Extended Mode of the Scalable Bus Protocol. The GMCH memory interface
supports dual channel DDR, and the 1.5V AGP slot which supports 8X/4X data
transfers and AGP Fast Writes. The Integrated Graphics Controller provides 3D,
2D high performance graphics solution.
Host Interface
and System Memory Interface
The Springdale GMCH can utilize a single PGA 478-pin processor. It supports a FSB
frequency of 800/533/400 MHz(100 MHz, 133 MHz, and 200 MHz CLK respectively).
It supports 32-bit host addressing, decoding up to 4GB of the CPU's memory ad-
dress space. The Springdale GMCH integrates a system memory DDR Controller
which supports dual DDR data channels, with a bandwidth up to 3.2GB/s(DDR 400)
for single-channel mode and 6.4GB/s(DDR 400) for dual-channel mode.
Intel ICH5 System Features
The I/O Controller Hub provides the I/O subsystem with access to the rest of the
system. It supports dual channel Ultra ATA/100 Bus Master IDE Controller, two Se-
rial ATA (SATA) Host Controllers, SMBus 2.0 Controller, LPC/Flash BIOS Interface,
PCI 2.3 Interface, and Integrated System Management Controller.
Graphics Features/Display (865G:
for
P4SPA+ only
)
The Springdale GMCH provides an integrated graphics accelerator delivering 3D,
2D and video capabilities. It also provides interfaces to a progressive scan analog
monitor and two DVO devices. It
is compliant with DVI specifi cation and has
a high-speed interface to a digital display.
