Technical Reference Guide
2.4.2 CHIPSET
The chipset consists of a Memory Controller Hub (GMCH) or Graphics Memory Controller Hub
(GMCH), an enhanced I/O controller hub (ICH), and a firmware hub (FWH). Table 2-3 compares
the functions provided by the chipsets.
Table 2-3.
Chipset Comparison
Table 2-3.
Chipset Components
Components
Function
82865G GMCH
Integrated graphics controller
AGP 8X interface
SDRAM controller supporting PC2100, PC2700, or PC3200 non-ECC DIMMs
400-, 533-, or 800-MHz FSB
82801EB ICH5
PCI 2.2 bus I/F
LPC bus I/F
SMBus I/F
IDE I/F with UATA and SATA support
AC ’97 controller
RTC/CMOS
IRQ controller
Power management logic
Four USB 1.1 controllers (3 available for supporting up to 6 ports operating as USB
1.1)
USB 2.0 controller (supporting up to 6 ports operating as USB 2.0)
Network interface controller
82802 FWH [2]
Loaded with hp/Compaq BIOS
NOTE:
[1] Or equivalent component.
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 2-4 shows the functions provided by the support components.
Table 2-4.
Support Component Functions
Table 2-4.
Support Component Functions
Component Name
Function
LPC47B387 I/O Controller
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
BCM5782 Ethernet Controller
10/100/1000 Fast Ethernet network interface controller.
AD1981B Audio Codec
Audio mixer
Digital-to-analog converter
Analog-to-digital converter
Analog I/O
6-channel audio support
hp compaq d330 and d530 Series Personal Computers
Featuring the Intel Pentium 4 Processor
First Edition - June 2003
2-17
