Apple manual Power Mac G4 AGP Graphics Block Diagram

Troubleshooting General/ Block Diagrams - 3

Power Mac G4 (AGP Graphics) Block Diagram

Processor Module

Backside

PowerPC G4

L2 cache

microprocessor

Main Logic Board

100 MHz

Max bus

100 MHz

UniNorth

AGP 2x bus

memory bus

memory

controller

and PCI

bus

bridge

AGP

SDRAM DIMM

2x slot

slots

32-bit

66 MHz

PCI slots

PCI bus

PCI-

PCI

Boot

bus bridge

ROM

Firewire

Firewire

Internal DVD-ROM

64-bit

controller

PHY

connector

33 MHz

PCI bus

Ethernet

Ethernet

PHY

Internal Zip drive

ATA

controller

connector

bus

Internal hard drive

KeyLargo

connectors

Ultra ATA bus

Modem slot

I/O device

and disk

controller

Screamer

sound IC

PMU99

Wireless

Internal

power

LAN slot

speaker

controller

connector

Firewire port Firewire port

Ethernet port

USB port A

USB port B

Microphone jack Headphone jack