System Architecture - HP Deskpro EX Technical Reference Manual

Chapter 2 System Overview
2.4

SYSTEM ARCHITECTURE

The Compaq Deskpro EX systems covered in this guide feature an architecture based on an Intel
Pentium III or Celeron processor working with the Intel 815 chipset (Figure 2-7). All models use
SDRAM for system memory, provide AGP 4X graphics support, and include PCI bus expansion
capability. Standard configurations include Celeron processors running at 600 MHz and Pentium
III processors of speeds up to 933 MHz.
The 815 chipset includes the 82815 GMCH designed to support a Pentium III or Celeron
processor with an FSB speed of either 66-, 100- or 133-MHz. The GMCH also includes an
SDRAM controller supporting one or two PC133 DIMMs.
The 82815 GMCH includes a i740-equivalent AGP 4X graphics controller that is implemented in
the embedded graphics configuration while enhanced-performance configurations use an NVIDIA
graphics controller AGP card.
All systems feature legacy-PC audio support as well as AC'97-compatible audio subsystems and
include microphone and line inputs and headphone and/or line outputs.
The 815 chipset also includes the 82801AA I/O Controller Hub (ICH) that integrates two IDE
controllers with ATA66 support, two USB interfaces, and a PCI bus controller. An SMC
LPC47B357 Super I/O Controller provides serial, parallel, keyboard, mouse, and diskette drive
interface functions.
2-10 Compaq Deskpro EX Series of Personal Computers
First Edition – August 2000