Compaq user manual Physical Parameters, AlphaPC 164SX Motherboard Environmental Requirements

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Physical Parameters

Table 2–4 AlphaPC 164SX Motherboard Environmental Requirements

Parameter	Specification
Operating temperature	10°C to 40°C (50°F to 104°F)
Storage temperature	–55°C to 125°C (–67°F to 257°F)
Relative humidity	10% to 90% with maximum wet bulb temperature
	28°C (82°F) and minimum dew point 2°C (36°F)
Rate of (dry bulb) temperature change	11°C/hour ±2°C/hour (20°F/hour ±4°F/hour)

2.3 Physical Parameters

The AlphaPC 164SX motherboard is an ATX-size printed-wiring board (PWB) with the following dimensions:

•Length: 30.48 cm (12.0 in ±0.0005 in)

•Width: 24.38 cm (9.6 in ±0.0005 in)

•Height: 6.00 cm (2.4 in)

Features 2–5

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Contents Digital Unix October Contents Alpha SRM Console Firmware Memory and Microprocessor ConfigurationTroubleshooting Interrupts and ISA Bus AddressesPage Figures Tables Page Manual Conventions and Terminology About This ManualTerms The following terms are used in this manual Manual Conventions and TerminologyAlphaPC 164SX Features FeaturesAlphaPC 164SX Switch/Connector/Component Location XB1 AlphaPC 164SX Switch/Connector/Component ListEnvironmental Requirements Power RequirementsPower Requirements Power Supply DC Current RequirementsPhysical Parameters Physical ParametersAlphaPC 164SX Motherboard Environmental Requirements 2shows the ATX hole specification for the AlphaPC 164SX Physical Parameters ATX Hole SpecificationPhysical Parameters ATX I/O Shield Requirements 3shows the ATX I/O shield dimensions for the AlphaPC 164SXPage CPU Speed Selection CF64 AlphaPC 164SX Switch ConfigurationFail-Safe Booter CF7 Mini-Debugger CF3AlphaPC 164SX Configuration Switches Fail-Safe Booter CF7PCI Bus Connector Pinouts AlphaPC 164SX Connector PinoutsPCI Bus Connector Pinouts 1shows the PCI bus connector pinoutsREQ# PCI Bus Connector PinoutsISA Expansion Bus Connector Pinouts J22, J23 ISA Expansion Bus Connector PinoutsISA Expansion Bus Connector Pinouts 2shows the ISA expansion bus connector pinoutsSdram Dimm Connector Pinouts J7 through J10 Sdram Dimm Connector PinoutsSdram Dimm Connector Pinouts 3shows the Sdram Dimm connector pinoutsEide Drive Bus Connector Pinouts J5, J6 Eide Drive Bus Connector PinoutsEide Drive Bus Connector Pinouts 4shows the Eide drive bus connector pinouts5shows the diskette floppy drive bus connector pinouts Diskette Floppy Drive Bus Connector PinoutsParallel Bus Connector Pinouts Diskette Floppy Drive Bus Connector Pinouts7shows the COM1/COM2 serial line connector pinouts COM1/COM2 Serial Line Connector PinoutsKeyboard/Mouse Connector Pinouts COM1/COM2 Serial Line Connector PinoutsSrom Test Data Input Connector Pinouts Srom Test Data Input Connector PinoutsInput Power Connector Pinouts Enclosure Fan Power Connector PinoutsMicroprocessor Fan Power Connector Pinouts Microprocessor Fan Power Connector PinoutsSoft Power Connector Pinouts Multipurpose Connector PinoutsJ20 Multipurpose Connector PinoutsConfiguring Sdram Memory Memory and Microprocessor ConfigurationAlphaPC 164SX Sdram Memory Configurations Upgrading Sdram MemoryUpgrading Sdram Memory Required Tools Increasing Microprocessor SpeedIncreasing Microprocessor Speed Preparatory InformationInstalling the 21164PC Microprocessor Fan/Heat-Sink Assembly 6Memory and Microprocessor Configuration ISA Interrupts Interrupts and ISA Bus AddressesInterrupts 1lists each AlphaPC 164SX ISA interrupt and its sourceISA I/O Address Map ISA I/O Address MapISA I/O Address Map 2lists the AlphaPC 164SX ISA I/O space address mappingAlpha SRM Console Firmware Alpha SRM Console Firmware ConventionsFollowing conventions are used in this section Alpha SRM Console Firmware Conventions Basic Alpha SRM Console Command Descriptions Basic Alpha SRM Console Command DescriptionsNone ArcBoot 6Alpha SRM Console Firmware Boots the system from the default boot device Writes data to the specified address DepositData to be deposited Clears the first 512 bytes of physical Examine Displays the contents of the specified address12Alpha SRM Console Firmware Examines Fwupdate Set Sets or modifies the value of an environment variableEnvironment variable to be assigned a new value 16Alpha SRM Console Firmware Show Environment Variables for Alpha SRM Console Commands Environment Variables for Alpha SRM Console CommandsEnvironment Variable Descriptions Architecture-Required Environment Variables Off System-Defined Environment VariablesSet language Init AlphaBIOS Keys AlphaBIOS ConventionsWindows NT Workstation Press F2 to start the AlphaBIOS setup programAlphaBIOS Setup Screen AlphaBIOS Upgrade Options Screen Press Enter to continue the installationAlphaBIOS Warning Screen AlphaBIOS Upgrade SRM Console Screen Press F10 to continue the installationAlphaBIOS Upgrade Complete Screen 6shows an example of the AlphaBIOS Upgrade Complete screenInstalling the Digital Unix Operating System Installing the Digital Unix Operating SystemRequirements Page Troubleshooting Troubleshooting Steps No VideoHardware Startup Beep Codes Beep CodesPost Codes Beep CodesPost Codes Fail-Safe Booter Fail-Safe BooterProceed to .4 and follow the procedures Battery Recycle/Disposal Information Battery Recycle/Disposal InformationPage Description Support, Products, and DocumentationCustomer Support News Press releasesMemory Power SupplySupporting Products Supporting ProductsNorthwestern El Paso, TX Phone Associated DocumentationAssociated Documentation Enclosure4Support, Products, and Documentation