Chipset; Support Components; Table 2-2. Chipset Comparison; Table 2-3. Support Component - Compaq Evo D500 Technical Reference Manual

Chapter 2 System Overview

2.4.2 CHIPSET

The Intel 815E chipset consists of a Graphics Memory Controller Hub (GMCH), an enhanced I/O
controller hub (ICH2), and a firmware hub (FWH). Table 2-2 lists the integrated functions
provided by the chipset.

Table 2-2. Chipset Comparison

Component Type
82815 GMCH
82801BA ICH2
82802 FWH

2.4.3 SUPPORT COMPONENTS

Input/output functions not provided by the chipset are handled by other support components.
Some of these components also provide "housekeeping" and various other functions as well.
Table 2-3 shows the functions provided by the support components.
Table 2-3. Support Component Functions
Component Name
LPC47B357 I/O Controller
AD1885 Audio Codec [1]
NOTE:
[1] Systems with embedded AC97 audio.
2-16 Compaq Deskpro and Evo Personal Computers
Featuring Intel Celeron and Pentium III Processors
Table 2-2.
815E Chipset Functions
Function
AGP 4X interface
Direct AGP graphics controller
SDRAM controller supporting 3 PC133 DIMMs
66-/100-/133-MHz FSB
PCI bus I/F
LPC bus I/F
SMBus I/F
IDE I/F with UATA/100 support
AC '97 controller
RTC/CMOS
IRQ controller
Power management logic
USB I/F (2)
Network interface controller
Loaded with Compaq BIOS
Random number generator
Table 2-3.
Support Component Functions
Function
Keyboard and pointing device I/F
Diskette I/F
Serial I/F (COM1and COM2)
Parallel I/F (LPT1, LPT2, or LPT3)
AGP, PCI reset generation
Interrupt (IRQ) serializer
Power button logic
GPIO ports
Audio mixer
Digital-to-analog converter
Analog-to-digital converter
Analog I/O
Fifth Edition – March 2002