Apple Desktop Computer manual Figures and Tables

Page 7

Figures and Tables

Chapter 1

Introduction

13

 

 

 

 

 

 

 

 

Figure 1-1

Front view

16

 

 

 

 

 

 

Figure 1-2

Side view showing I/O bay

17

 

 

 

Chapter 2

Architecture

21

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Figure 2-1

Block diagram

22

 

 

 

 

 

Chapter 3

Devices and Ports

27

 

 

 

 

 

 

 

 

 

 

 

 

 

Figure 3-1

USB Type A port and connector

29

 

 

 

Figure 3-2

ANSI keyboard layout

 

32

 

 

 

 

Table 3-1

Pin assignments on the USB port

29

 

 

 

Table 3-2

Display resolutions and pixel depths

35

 

 

Table 3-3

Distortion specifications

 

38

 

 

 

 

Table 3-4

Noise specifications

38

 

 

 

Chapter 4

RAM Expansion

41

 

 

 

 

 

 

 

 

 

 

 

 

Figure 4-1

Bottom view showing bottom cover handle

43

 

 

Figure 4-2

Cables connected to the logic board assembly

44

 

Figure 4-3

Logic board assembly handle and retaining screws

45

 

Figure 4-4

Removing the logic board assembly

46

 

 

Figure 4-5

EMI shield

47

 

 

 

 

 

 

Figure 4-6

Locations of the RAM expansion slots

48

 

 

Table 4-1

Sizes of RAM expansion modules and devices

51

 

Table 4-2

Types of DRAM devices

 

52

 

 

 

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Contents Apple iMac Computer Page Contents RAM Expansion Devices and PortsRtas SoftwareRtas NV-RAM Appendix Abbreviations IndexFigures and Tables Page About This Developer Note Contents of This NoteATA Devices PowerPC G3 MicroprocessorSupplemental Reference Documents Mac OSOpen Firmware USB DevicesE F a C E Introduction Features Shows a front view of the computer Case and External FeaturesFront view 2Side view showing I/O bay System Software Compatibility IssuesVideo RAM Expansion Modules Main RAM Expansion ModulesUSB Ports and Devices Page Architecture Architecture G3 Microprocessor Processor moduleBackside Cache Memory Controller and PCI Bridge Main Logic BoardController IC Video Display Subsystem USB ControllerBuilt-in Modem Infrared Link Module Devices and Ports USB Ports USB ConnectorsGND Transfer Types SupportedADB Compatibility USB Compatibility IssuesUSB Controller Serial Port CompatibilityMacintosh-To-Macintosh Connections USB Storage DevicesKeyboard Layout KeyboardKeyboard and USB MouseVideo Display Hard Disk DriveSound System Infrared Communication LinkExternal Sound Input Sound InputsSound Outputs Built-in MicrophoneExternal Sound Output Sound SpecificationsHeadphone Jacks Total harmonic distortion Internal Modem Ethernet PortPage RAM Expansion Expansion Slots Removing the Logic Board AssemblyPlacing the Computer Face Down Unfastening the Cables Removing the bottom coverRAM Expansion Removing the Retaining Screws 3Logic board assembly handle and retaining screwsRemoving the EMI Shield Removing the Logic Board AssemblyLocations of the Expansion Slots 6Locations of the RAM expansion slots Main RAM ExpansionElectrical Design of RAM SO-DIMMs Mechanical Design of RAM SO-DIMMsSdram Devices Configuration of RAM SO-DIMMs Address Multiplexing RAM SO-DIMM Electrical LimitsVideo RAM Expansion Page Software Why Make This Change? What Has Changed Features of the New Approach Data Structures and Files PerformanceRAM Footprint User ExperienceBoot ROM Contents Rtas Mac OS ndrv DriversToolbox Image File Contents Trampoline Code NewWorld Boot ProcessToolBox ROM Image Interrupt Handling What Is DifferentRAM Footprint Outmoded ResourcesStartup Disk Control Panel NanoKernelInterrupt Layout Open Firmware and the Device TreeMachine Identification Software Abbreviations Chrp NMI Page Index Nvram X, Y, Z Allen Watson