User's Manual

Introduction
1-6 Intel
®
820 Chipset Design Guide
Figure 1-2. Intel
®
820 Chipset Platform Performance Desktop Block Diagram (with ISA Bridge)
Main
Memory
Processor
PCI Bus
82820
Memory
Controller Hub
(MCH)
ISA Bridge
(optional)
4X AGP
Graphics
Controller
Hub Interface
2 USB Ports
4 IDE Drives
AC'97 Codec(s)
(optional)
AC'97 2.1
LPC I/F
Super I/O
Keyboard,
Mouse, FD,
PP, SP, IR
PCI Slot
s
ISA Slot
s
AGP 2.0
82801AA
I/O Controller Hub
(ICH)
GPIO
FWH Flash
BIOS