Magma P13RR manual Daisy-Chaining ExpansionSystems

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M A G M A

The following image shows the Apple Profiler display when a MAC has 2 Expansion Systems connected in a “Fan-Out” configuration

MAC System Profiler with 2 PCI to PCI Expansion Systems Installed

in a “Fan-Out Configuration.

Daisy-Chaining

Recognizing the typical insignificance of the performance variance between the “Fan-Out” and “Daisy-Chaining” configurations, the primary reason for using this one would be limitations on physical space. This could be the number of available slots on the computer motherboard, or a lack of desk or rack space.

Daisy-Chaining ExpansionSystems

PCI Expansion	4, 7, 13Slot Chassis
Host Card

Magma

Expansion

Cable

PCI Expansion

Host Card

Simply place anotherHost ExpansionCard into a vacant PCI slot on the 1st ExpansionSystem.

Then connect #1to #2 using the ExpansionCable.

Proprietary

Expansion

Cable

4, 7, 13Slot Chassis

In the daisy-chain configuration, successive PCI expansion systems are added to the "end" of the PCI bus hierarchy, which adds "depth" to the PCI Local Bus by increasing the number of PCI Local Bus levels active in the system configuration.

38 Appendix B Need More Slots?

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Contents PCI Expansion Chassis Users Guide Copyright 2007 Mission Technology Group, Inc. DBA Magma Table of Contents Appendix a BUS Hierarchy Preface What’sinthisGuideSafetyInstructions AdvisoriesWhenWorkingInsideaComputer Protecting Against Electrostatic Discharge Electrostatic Discharge ESD WarningPre-InstallationInformation General SpecificationsIntroduction ToolsRequiredforInstallation PartsListHardware Installation StopInstallExpansionInterfaceCard Before you BeginAttachPCIExpansionandPowerCable Starting Up RechecktheInstallationApplyingPowerCorrectly Shutting DownVerify Installation WindowsG M a MacOSX MAC OS 10.3.xMAC OS Install 3rd Party PCI Cards RemovePCI Expansion ChassisCoverInstallPCICardsinPCIExpansionChassis G M a Installing Hard Drives Install Hard DrivesSystem Should BeUpand Running Rack Installations FinishingTouchesTroubleshooting LocatetheProblemMy Computer Can’t Find the PCI Expansion System WindowsWhen Nothing Works My Computer Hangs During Power Up My PCI Card Doesn’t Work Support for 3rd Party PCI Cards Windows Error Codes On the PCI to PCI Bridge Magma Technical Support Chassis Maintenance GeneralChassisCleaningHot-SwappablePowerSupply CleaningtheAirFilter G M a FrequentlyAskedQuestionsFAQ How to Get More HelpContacting TechnicalSupport Magma Debug Utility PCIScope Software Utility G M a ReturningMerchandisetoMagma Magma Returns DEPT. RMA #Appendix a Bus Hierarchy BusHierarchyG M a Multiple PCI Expansion System Configurations Appendix B Need More Slots?Fan-Out Verify your configuration Daisy-Chaining ExpansionSystems Daisy-ChainingCombination Configurations Troubleshooting AdvancedConfigurations Power-OnSequenceforAdvanced ConfigurationsPCI Card Conflicts Finding the Problem Card Appendix C Compliance IndustryCanadaG M a Manual P/N 09-09913-01 Rev a