Troubleshooting General/ Block Diagrams - 2
Power Mac G4 (Gigabit Ethernet) Block Diagram
100 MHz
memory bus
100 MHz
Max bus
Microphone jack
Headphone jack
Ethernet port
Firewire port
Firewire port
32-bit
66 MHz
PCI bus
AGP
2x slot
AGP 2x bus
PCI slots
64-bit
33 MHz
PCI bus
Backside
L2 cache
PowerPC G4
microprocessor
UniNorth
memory
controller
and PCI
bus bridge
PMU99
power
controller
Boot
ROM
Ethernet
PHY
Firewire
PHY
Firewire
controller
Screamer
sound IC
Modem slot
USB port A
USB port B
SDRAM DIMM
slots
Internal DVD-ROM
connector
KeyLargo
I/O device
and disk
controller
Internal Zip drive
connector
Internal hard drive
connectors
Main Logic Board
Processor Module
PCI-PCI
bus bridge
ATA
bus
Ultra ATA bus
Internal
speaker
connector
Wireless
LAN slot