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Compaq N110 manual System DMA, Specifications, Hardware DMA, System Function, 6-12

Models: N110 110

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Page 123

Specifications

	Table 6-10
	System DMA

Hardware DMA	System Function

DMA0	Available for audio

DMA1	Entertainment audio
	(default; alternate = DMA0, DMA3, none)

DMA2	Diskette drive

DMA3	ECP parallel port LPT1
	(default; alternate = DMA0, none)

DMA4	DMA controller cascading (not available)

DMA5	Available for PC Card

DMA6	not assigned

DMA7	not assigned

✎PC Card controller can use DMA 1, 2, or 5.

6–12	Maintenance and Service Guide

Page 123

Image 123

Compaq N110 manual System DMA, Specifications, Hardware DMA, System Function, 6-12

Contents

Document Part Number DecemberMaintenance and Service Guide Compaq Armada 110 and Compaq Evo N110Document Part Number Maintenance and Service Guide Third Edition DecemberContents 2 Troubleshooting1 Product Description 3.3 Plastics Kit Components 3.4 Hardware Kit Components 4 Removal and Replacement Preliminaries3 Illustrated Parts Catalog 3.1 Serial Number Location 3.2 Computer System Major ComponentsC Screw Listing Index 5 Removal and Replacement Procedures6 Specifications A Connector Pin Assignments B Power Cord Set RequirementsFigure 1-1 Compaq Armada 110 and Evo N110 1.1 Models and FeaturesProduct Description Maintenance and Service GuideProduct Description ModelsComputer models are shown in Table1-1 Compaq Armada 110 and Evo N110 Models and Model Naming ConventionsProduct Description Maintenance and Service GuideCompaq Armada 110 and Evo N110 Models and Model Naming Conventions ContinuedCompaq Armada 110 and Evo N110 Models and Model Naming Conventions ContinuedProduct Description Product Description Maintenance and Service GuideCompaq Armada 110 and Evo N110 Models and Model Naming Conventions ContinuedFeatures Displays, varying by computer model 1.2 Security 1.3 Power Management Enabling Power SavingsTimeout Settings Setting Standby HibernationStandby Display and Left Side Components 1.4 Computer External ComponentsMaintenance and Service Guide Figure 1-2 Display and Left Side Components1-12 Figure 1-3 Right Side and Rear Panel ComponentsRight Side and Rear Panel Components Product DescriptionProduct Description Maintenance and Service Guidea mouse. When this connector is used, both Right Side and Rear Panel Components Continued1-14 Maintenance and Service GuideFigure 1-4 Keyboard Components Product DescriptionCaps lock key Maintenance and Service GuideKeyboard Components Fn keyProduct Description Maintenance and Service GuideFigure 1-5 Top Components Top ComponentsProduct Description Maintenance and Service GuideTop Components Continued On Scroll lock is on1-18 Maintenance and Service GuideFigure 1-6 Bottom Components Product DescriptionMaintenance and Service Guide Bottom ComponentsProduct Description 1.4 Design Overview Troubleshooting Troubleshooting Using the PhoenixBIOS Setup UtilityMaintenance and Service Guide Troubleshooting Flowcharts for Portable ComputersTroubleshooting Flowcharts Overview TroubleshootingBeeps LEDs, or error Messages? 2.1 Initial TroubleshootingIs there power? Go to Section No Powerin docking 2.2 No Power, PartPower up Power up in docking station?Maintenance and Service Guide 2.3 No Power, PartTroubleshooting power supply, if applicable2.4 No Power, Part damaged items 2.5 No Power, PartTroubleshooting damaged2.6 No Video, Part 2-10 2.7 No Video, PartTroubleshooting Maintenance and Service Guide2.8 Non-Functioning Docking Station if applicable TroubleshootingMaintenance and Service Guide Maintenance and Service Guide 2.9 No Operating System OS LoadingTroubleshooting Reseat power cord in docking station and power outlet Hard drivepriority through the setup utility and reboot 2.10 No OS Loading from Hard Drive, PartCheck the setup utility for correct booting order Boot from diskette?2.11 No OS Loading from Hard Drive, Part 2.12 No OS Loading from Hard Drive, Part 2.13 No OS Loading from Diskette Drive 1. Replace2. Replace 2.14 No OS Loading from CD- or DVD-ROM Drive TroubleshootingMaintenance and Service Guide 2.15 No Audio, Part Troubleshooting2-18 N Replace audio 2.16 No Audio, PartTroubleshooting Maintenance and Service GuideNon Functioning Device Reseat device 2.17 Non-Functioning DeviceTroubleshooting Maintenance and Service Guide2-21 2.18 Non-Functioning KeyboardTroubleshooting Maintenance and Service Guide2-22 2.19 Non-Functioning Pointing DeviceTroubleshooting Maintenance and Service Guide2-23 2.20 Network or Modem ConnectionTroubleshooting Maintenance and Service Guide3.1 Serial Number Location Illustrated Parts CatalogIllustrated Parts Catalog 3.2 Computer System Major ComponentsMaintenance and Service Guide Figure 3-2 Computer System Major ComponentsMaintenance and Service Guide Spare Parts Computer System Major ComponentsIllustrated Parts Catalog Maintenance and Service Guide Computer System Major Components continuedIllustrated Parts Catalog Maintenance and Service Guide Spare Parts Computer System Major Components ContinuedIllustrated Parts Catalog Maintenance and Service Guide Computer System Major Components continuedIllustrated Parts Catalog Spare Part Maintenance and Service GuideSpare Parts Computer System Major Components Continued Illustrated Parts CatalogPlastics Kit Components Spare Part Number 3.3 Plastics Kit ComponentsMaintenance and Service Guide Figure 3-3 Plastics Kit ComponentsHardware Kit Components Spare Part Number 3.4 Hardware Kit ComponentsMaintenance and Service Guide Figure 3-4 Hardware Kit ComponentsCable Kit Components Spare Part Number 3.5 Cable Kit ComponentsMaintenance and Service Guide Figure 3-5 Cable Kit ComponentsMass Storage Devices 3.6 Mass Storage DevicesMaintenance and Service Guide Figure 3-6 Mass Storage Devices3-12 3.7 MiscellaneousSpare Parts Miscellaneous not illustrated Illustrated Parts CatalogMaintenance and Service Guide Spare Parts Miscellaneous not illustrated ContinuedIllustrated Parts Catalog Removal and Replacement Preliminaries 4.2 Service Considerations4.1 Tools Required Cables and Connectors 4.3 Preventing Damage to Removable DrivesPlastic Parts Avoid dropping drives from any height onto any surface 4.4 Preventing Electrostatic Damage 4.5 Packaging and Transporting Precautions4.6 Workstation Precautions 4.7 Grounding Equipment and Methods Non-conductive plastic bags, tubes, or boxes Metal tote boxes Removal and Replacement Procedures Figure 5-1 Serial Number Location 5.1 Serial NumberRemoval and Replacement Procedures Maintenance and Service GuideMaintenance and Service Guide 5.2 Disassembly Sequence ChartDisassembly Sequence Chart Removal and Replacement Procedures5.3 Preparing the Computer for Disassembly Computer Feet Spare Part Number Information 5.4 Computer FeetRemoval and Replacement Procedures Maintenance and Service Guide5.5 Mini PCI Communication Board 5. Remove the mini PCI compartment cover Figure 5-5 Removing the LED Cover 5.6 LED CoverKeyboard Spare Part Number Information 5.7 KeyboardRemoval and Replacement Procedures Maintenance and Service GuideFigure 5-6 Removing the Keyboard Screws Maintenance and Service Guide Reverse the above procedure to install the keyboardFigure 5-7 Disconnecting the Keyboard Cable Removal and Replacement ProceduresOptical Drives Spare Part Number Information 5.8 Optical DriveRemoval and Replacement Procedures Maintenance and Service Guide4. Slide the optical drive out of the base enclosure Display Spare Part Number Information 5.9 Display5. Lift the hinge covers straight up to remove them 6. Position the computer with the front facing you Maintenance and Service Guide Reverse the above procedure to install the displayFigure 5-11 Installing the Display Screws Removal and Replacement ProceduresHeat Sink Spare Part Number Information 5.10 Heat Sink5-19 Removal and Replacement ProceduresMaintenance and Service Guide Figure 5-12 Removing the Heat Sink Screws4. Pull the heat sink away from the base enclosure at a Follow these steps to replace a damaged thermal pad 5-22 5.11 ProcessorRemoval and Replacement Procedures Processor Spare Part Number InformationFigure 5-14 Removing the Processor Top Cover Spare Part Number Information 5.12 Top Cover5-25 Removal and Replacement ProceduresMaintenance and Service Guide Figure 5-15 Removing the Top Cover Screws4. Turn the computer top side up with the front facing you Diskette Drive Spare Part Number Information 5.13 Diskette Drive5. Remove the diskette drive from the top cover TouchPad Spare Part Number Information 5.14 TouchPadRemoval and Replacement Procedures Maintenance and Service Guide4. Lift the TouchPad bracket up and remove it from the top cover Removal and Replacement ProceduresMaintenance and Service Guide 3. Slide the TouchPad bracket forward5. Remove the TouchPad board and cable from the top cover Figure Reverse the above procedure to install the TouchPadRemoval and Replacement Procedures Maintenance and Service Guide5-32 5.15 Hard DriveRemoval and Replacement Procedures Hard Drive Spare Part Number Information3. Remove the hard drive bracket 2 from the base enclosure Disk Cell RTC Battery Spare Part Number Information 5.16 Disk Cell Real Time Clock RTC BatteryMaintenance and Service Guide Reverse the above procedure to install the disk cell RTC batteryFigure 5-21 Removing the Disk Cell Battery Removal and Replacement ProceduresFan Spare Part Number Information 5.17 FanRemoval and Replacement Procedures Maintenance and Service Guide3. Disconnect the fan cable from the system board Reverse the above procedure to install the fanRemoval and Replacement Procedures Maintenance and Service Guide5-38 Removal and Replacement ProceduresMaintenance and Service Guide Figure 5-23 Routing the Fan CableSystem Board Spare Part Number Information 5.18 System BoardFigure 5-24 Removing the Exterior System Board Screws Removal and Replacement ProceduresMaintenance and Service Guide 4. Turn the base enclosure top side up with the front facing you7. Remove the optical drive alignment rail 9. Make sure the PC Card eject button 1 is fully depressed Figure Reverse the above procedure to install the system boardRemoval and Replacement Procedures Maintenance and Service Guide5-43 Removal and Replacement ProceduresMaintenance and Service Guide Figure 5-27 Routing the Microphone CableComputer SpecificationsThis chapter provides physical and performance specifications Maintenance and Service GuideShock SpecificationsComputer Continued Relative Humidity non-condensingSpecifications Maintenance and Service Guide14.1-inch XGA, TFT Display 12.1-inch SVGA, TFT Display Specifications10.0-GB Hard Drive SpecificationsLogical configuration Maintenance and Service Guide20.0 GB SpecificationsPhysical configuration 10.0-GB Hard Drive ContinuedDiskette size SpecificationsMaintenance and Service Guide Diskette DriveCD-ROM Drive SpecificationsSpecifications Maintenance and Service GuideDVD-ROM Drive Specifications AC Adapter6-10 Battery Packs SpecificationsMaintenance and Service Guide System Function SpecificationsSystem DMA Hardware DMASpecifications Maintenance and Service GuideSystem Interrupts Specifications System I/O Addresses6-14 Specifications Maintenance and Service GuideSystem I/O Addresses Continued Specifications System I/O Addresses Continued6-16 Specifications Maintenance and Service GuideSystem Memory Map Table A-2 Microphone Connector Pin AssignmentsMaintenance and Service Guide Table A-1 Stereo Speaker/HeadphoneConnector Pin Assignments Table A-3 Keyboard/MouseTable A-4 RJ-11 Modem Table A-6 Universal Serial Bus Connector Pin AssignmentsMaintenance and Service Guide Table A-5 RJ-45 Network InterfaceConnector Pin Assignments Maintenance and Service GuideTable A-7 Serial Connector Pin Assignments Maintenance and Service GuideTable A-8 External Monitor Table A-9 Parallel Connector Pin AssignmentsPower Cord Set Requirements 3-Conductor Power Cord SetGeneral Requirements 3-Conductor Power Cord Set Requirements-By Country Country-Specific Requirements1. The flexible cord must be HAR Type HO5VV-F Screw Listing Maintenance and Service GuideTable C-1 M2.5 × 5 Screw Maintenance and Service Guide Table C-2 M2.5 × 4.5 ScrewScrew Listing Maintenance and Service Guide Table C-2 M2.5 × 4.5 Screw ContinuedScrew Listing Screw Listing Table C-2 M2.5 × 4.5 Screw ContinuedMaintenance and Service Guide Table C-2 M2.5 × 4.5 Screw ContinuedScrew Listing Screw Listing Table C-2 M2.5 × 4.5 Screw ContinuedMaintenance and Service Guide Table C-3 M2.5 × 7 ScrewScrew Listing Screw Listing Table C-3 M2.5 × 7 Screw ContinuedMaintenance and Service Guide Table C-3 M2.5 × 7 Screw ContinuedScrew Listing Table C-4 M2.5 × 5.5 Screw Screw ListingC-10 Index Page Page Page Index-5 Index-6

System DMA

Hardware DMA

System Function

6–12