HP Vectra VL800, Technical Reference Manual

Page: 51 / 147

51
3 System Board
Chipset
Chipset
The Intel
®
i850 chipset is a high-integration chipset designed for
graphics/multimedia PC platforms and is comprised of the following:
• The 82850 Memory Controller Hub (MCH) is a bridge between: the
System bus, Dual Rambus bus (main memory), AGP 4x (graphic) bus
and Hub Link 8-bit. The MCH chip feature is described in detail on
page
52 .
• The 82801BA Input/Output Controller Hub2 (ICH2) is a bridge between
the following buses: the PCI bus (32-bits/33 MHz) and SMBus. In
addition, the ICH2 supports the integrated
IDE controller (Ultra
ATA/100) , Enhanced DMA controller, USB controller, Interrupt
controller, Low Pin Count (LPC) interface, FWH interface, ACPI
Power Management Logic, AC’97 2.1 Compliant Link, AOL (Alert-
On-LAN) and Real Time Clock (RTC) and CMOS
. The ICH2 is
described in detail on page 58 .
• The 82802AB Firmware Hub (FWH) stores system BIOS and SCSI BIOS,
nonvolatile memory component.
MCH
ICH2