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Hardware Documentation
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Original Power Mac G3 Computers Developer Note
Table of Contents
Topics Described In This Note
Supplemental Reference Documents
Apple Developer Connection Web Site
Figures and Tables
Introduction
Power Macintosh G3 Computer Features
Power Macintosh G3 All-in-one Features
Power Macintosh G3 Design Enhancements
External Features
Front View of the All-in-one Enclosure
Back View of the Enclosure
Access to the Logic Board
Front View of the Desktop Enclosure
Back View of the Desktop Enclosure
Access to the Logic Board in the Desktop Enclosure
Front View of the Tower Enclosure
Back View of the Tower Enclosure
Optional Features
Video Input
Video Output
Audio Input and Output
Communications
Internal Device Expansion Bays
Compatibility Issues
Machine Identification
Modem Slot
Expansion Slots
RAM Expansion
RAM DIMM Height Dimensions
L2 Cache Expansion
CD-ROM Drive
Power Supply
Video RAM Expansion
Built-in Video and Graphics Features
Architecture
Block Diagrams and Main ICs
Audio Input/Output Card
Audio/Video Input/Output Card
Apple DVD-Video and Audio/Video Card
PowerPC Microprocessor
Memory Subsystem
ROM
Second-Level Cache
System RAM
Custom ICs
Grackle IC
Heathrow IC
Screamer Sound IC
Burgundy Sound IC
Cuda IC
Graphics Controller
Display RAM (Video RAM)
I/O Features
Serial I/O Ports
ADB Port
Disk Drives
Floppy Disk Drive
ATA Hard Disk
ATAPI CD-ROM Drive
Zip Drive
SCSI Bus
SCSI Connectors
SCSI Bus Termination
Sound
Sound Output
Sound Input
Sound Input Specifications
Digitizing Sound
Video Input and Output
S-Video Connectors
Composite Video Connectors
Built-in Display Video
External Video Connector
External Video Monitors
All-in-one Display Resolution Modes
Modular Desktop and Mini-tower Display Resolution Modes
Video Input and Graphics Acceleration Display Modes
Power Specifications and Device Power Requirements
AC Line Input
AC Line Output
DC Power
Device Power Requirements
Apple Desktop Bus (ADB)
Audio and Telecommunications Devices
Expansion Cards and Internal Storage Devices
Expansion Features
RAM DIMMs
Presence Detect EEPROM
RAM DIMM Connectors
RAM Address Multiplexing
SDRAM Devices
RAM Refresh
Compatible SDRAM DIMMs
Video RAM SO-DIMMs
Expanding Video RAM
Compatible SGRAM modules
PCI Expansion Slots
The DAV Connector
The Modem Slot
Auxiliary Cooling Fans
Conventions and Abbreviations
Typographical Conventions
Abbreviations
© 1998 Apple Computer, Inc. - Revised 8/13/98