Developer Documentation
PATHHardware Documentation > Original Power Mac G3 Computers Developer Note


Architecture

This chapter describes the architecture of the Power Macintosh G3 computers, which consists of a main logic board and one of two input/output cards installed in the PERCH connector. It describes the major components of the main logic board: the microprocessor, the custom ICs, and the display RAM. Input and output connectors are discussed in I/O Features

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

Display RAM (Video RAM)


© 1998 Apple Computer, Inc. - Revised 8/13/98