Compaq 164SX user manual Microprocessor Fan Power Connector Pinouts, Soft Power Connector Pinouts

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Microprocessor Fan Power Connector Pinouts

4.12 Microprocessor Fan Power Connector Pinouts

Table 4–12shows the microprocessor fan power connector pinouts.

Table 4–12 Microprocessor Fan Power Connector Pinouts (J14)

Pin

Signal

Description

1

+12 V dc

—

2

FAN_CONN_L

Fan connected

3

Gnd

—

 

 

 

4.13 Soft Power Connector Pinouts

Table 4–13shows the soft power connector pinouts.

Table 4–13 Soft Power Connector Pinouts (J1)

Pin

Signal

Description

1

Input

System power on/off

2

Gnd

—

 

 

 

4.14 Multipurpose Connector Pinouts

J20 is a multipurpose connector that provides pins for the following functions:

•System speaker

•LEDs for power and the EIDE drive

•Buttons for reset and halt

Table 4–14shows the multipurpose connector pinouts, and Figure 4–1shows the connector layout.

Table 4–14 Multipurpose Connector Pinouts (J20)

(Sheet 1 of 2)

 

 

 

 

Pin

Signal

Description

 

 

 

 

 

1

Gnd

—

 

2

HALT_BUTTON

Halt system

 

 

 

 

 

3

Gnd

—

 

4

RESET_BUTTON

Reset system

 

 

 

 

 

AlphaPC 164SX Connector Pinouts 4–9

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Contents Digital Unix October Contents Troubleshooting Memory and Microprocessor ConfigurationInterrupts and ISA Bus Addresses Alpha SRM Console FirmwarePage 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 ListPower Requirements Power RequirementsPower Supply DC Current Requirements Environmental RequirementsAlphaPC 164SX Motherboard Environmental Requirements Physical ParametersPhysical Parameters 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 Fail-Safe Booter CF7 AlphaPC 164SX Switch ConfigurationMini-Debugger CF3 CPU Speed Selection CF64AlphaPC 164SX Configuration Switches Fail-Safe Booter CF7PCI Bus Connector Pinouts AlphaPC 164SX Connector Pinouts1shows the PCI bus connector pinouts PCI Bus Connector PinoutsREQ# PCI Bus Connector PinoutsISA Expansion Bus Connector Pinouts ISA Expansion Bus Connector Pinouts2shows the ISA expansion bus connector pinouts ISA Expansion Bus Connector Pinouts J22, J23Sdram Dimm Connector Pinouts Sdram Dimm Connector Pinouts3shows the Sdram Dimm connector pinouts Sdram Dimm Connector Pinouts J7 through J10Eide Drive Bus Connector Pinouts Eide Drive Bus Connector Pinouts4shows the Eide drive bus connector pinouts Eide Drive Bus Connector Pinouts J5, J6Parallel Bus Connector Pinouts Diskette Floppy Drive Bus Connector PinoutsDiskette Floppy Drive Bus Connector Pinouts 5shows the diskette floppy drive bus connector pinoutsKeyboard/Mouse Connector Pinouts COM1/COM2 Serial Line Connector PinoutsCOM1/COM2 Serial Line Connector Pinouts 7shows the COM1/COM2 serial line connector pinoutsInput Power Connector Pinouts Srom Test Data Input Connector PinoutsEnclosure Fan Power Connector Pinouts Srom Test Data Input Connector PinoutsSoft Power Connector Pinouts Microprocessor Fan Power Connector PinoutsMultipurpose Connector Pinouts Microprocessor Fan Power Connector PinoutsJ20 Multipurpose Connector PinoutsConfiguring Sdram Memory Memory and Microprocessor ConfigurationUpgrading Sdram Memory AlphaPC 164SX Sdram Memory ConfigurationsUpgrading Sdram Memory Increasing Microprocessor Speed Increasing Microprocessor SpeedPreparatory Information Required ToolsInstalling the 21164PC Microprocessor Fan/Heat-Sink Assembly 6Memory and Microprocessor Configuration Interrupts Interrupts and ISA Bus Addresses1lists each AlphaPC 164SX ISA interrupt and its source ISA InterruptsISA I/O Address Map ISA I/O Address Map2lists the AlphaPC 164SX ISA I/O space address mapping ISA I/O Address MapFollowing conventions are used in this section Alpha SRM Console FirmwareAlpha SRM Console Firmware Conventions 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 Environment variable to be assigned a new value SetSets or modifies the value of an environment variable 16Alpha SRM Console Firmware Show Environment Variable Descriptions Environment Variables for Alpha SRM Console CommandsEnvironment Variables for Alpha SRM Console Commands 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 screenRequirements Installing the Digital Unix Operating SystemInstalling the Digital Unix Operating System Page Hardware Startup TroubleshootingTroubleshooting Steps No Video Post Codes Beep CodesBeep Codes Beep CodesPost Codes Proceed to .4 and follow the procedures Fail-Safe BooterFail-Safe Booter Battery Recycle/Disposal Information Battery Recycle/Disposal InformationPage Customer Support Support, Products, and DocumentationNews Press releases DescriptionSupporting Products Power SupplySupporting Products MemoryAssociated Documentation Associated DocumentationEnclosure Northwestern El Paso, TX Phone4Support, Products, and Documentation
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