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Compaq EP Series manual 6.1.4 I/O, 6.1.3, Hardware DMA, System Function, I/O Address Hex

Models: EP Series

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6.1.3

6.1.3	DMA

	Hardware DMA	System Function
	DMA 0	Unused

	DMA 1	Audio (Alternate = DMA 0 or 3)

	DMA 2	Diskette Drive

	DMA 3	ECP Parallel Port LPT1 (Default; Alternate = DMA 0)

	DMA 4	DMA Controller Cascading (Not on ISA Bus)

	DMA 5	Unused

	DMA 6	Unused

	DMA 7	Unused

6.1.4I/O

I/O Address (Hex)		System Function (Shipping Configuration)
000 - 00F		DMA Controller # 1

010	- 01F	Unused

020 - 03F		Interrupt Controller # 1

040 - 043		Counter/Timer

044	- 05F	Unused

060		Keyboard Controller

061		Port B

062 - 063		Unused

064		Keyboard Controller

065	- 06F	Unused

070 - 071		NMI Enable/Real-Time Clock

072	- 077	CMOS Storage

078	- 07F	Unused

080 - 08F		DMA Page Registers

090 - 091		Unused

092		Port A

093	- 09F	Unused

0A0 - 0BF		Interrupt Controller # 2

0C0 - 0DF		DMA Controller # 2

0E0 - 0EB		Unused

0EC - 0ED		483 Configuration Index/Data

0EE - 0EF		483 Fast A20/Fast Reset

0F0 - 0F1		Co-Processor Busy Clear/Reset

0F2 - 0F3		Unused

0F4 - 0F5		483 CPU Speed Slow/Fast

0F6 - 0F8		Unused

0F9		483/PGL Configuration Lock

Continued

Compaq Deskpro EP Series of Personal Computers

6-3

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Compaq EP Series manual 6.1.4 I/O, 6.1.3, Hardware DMA, I/O Address Hex, System Function Shipping Configuration

Contents

Compaq Deskpro EP Series of Personal Computers Maintenance & Service GuideCompaq Deskpro EP Series of Personal Computers Guide to Features & UpgradesMaintenance & Service Guide Compaq Deskpro EP Series of Personal ComputersCompaq Computer Corporation About This Guide CONTENTSRemoval and Replacement Preliminaries prefaceRemoval and Replacement Procedures iv Contentschapter chapter Connectors, Jumpers, and SwitchesSpecifications Service NotesTechnician Notes Symbols and Conventionspreface ABOUT THIS GUIDEThe following documentation is available to support these products Locating Additional DocumentationCompaq Service Advisories and Bulletins Compaq QuickFind Technical Reference Guide Compaq Service Quick Reference GuideCompaq Deskpro EP Series of Personal Computers chapterPRODUCT DESCRIPTION Compaq Deskpro EP Series of Personal Computers1.1 Model Overview 1.2 System Design 1.3 Preinstalled Software 1.3.1 Ordering Additional SoftwareOnline Safety & Comfort Guide English only 1.4.1 Front Panel Controls and LEDs - 440BX 1.4 Computer FeaturesComponent/Function 1.4.2 Front Panel Controls and LEDs - Intel 810/810eFront Panel Controls and LEDs - Intel 810/ 810e Component/FunctionComponent 1.4.3 Rear Panel Connectors - 440BXRear Panel Connectors - 440BX ComponentComponent 1.4.4 Rear Panel Connectors - Intel 810/810eRear Panel Connectors - Intel 810/810e ComponentDrive Positions 1.4.5 Drive PositionsConfiguration Drive bay numbers are stamped on the chassisSerial Number Locations 1.5 Serial Number LocationSPARE PARTS chapter2-2 Spare Parts 2.1 System Unit2.1.1 System Unit - 440BX System Unit Spare Parts - 440BX ModelSystem Unit Spare Parts - 440BX Major Differences Between 440BX and Intel 810/810eCompaq Despro EP Series of Personal Computers 2.1.2 System Unit - Intel 810/810e System Unit Spare Parts - Intel 810/810e Model2-4 Spare Parts Major Differences Between 440BX and Intel 810/810e System Unit Spare Parts - Intel 810/810e2.2 Mass Storage Devices Mass Storage Devices2-6 Spare Parts Mass Storage Devices 2.3 Cables Cables2-8 Spare Parts Cable Kit includes CablesDescription Spare Part Number2.4 Standard and Optional Boards Standard and Optional Boards2-10 Spare Parts Not shown Standard and Optional Boards2-12 Spare Parts Standard and Optional Boards, continuedStandard and Optional Boards Continued Compaq Despro EP Series of Personal Computersand thermal interface. Use on 010697-101 system board 2-14 Spare Parts Standard and Optional Boards ContinuedPREMIER ∙SOUND 440BX Compaq PREMIER ∙SOUND board2.5 Keyboards KeyboardsCompaq Despro EP Series of Personal Computers 2-16 Spare Parts 2.6 Miscellaneous Hardware KitMiscellaneous Hardware Miscellaneous Hardware KitCompaq Despro EP Series of Personal Computers 2.7 Miscellaneous Plastics KitMiscellaneous Plastics Kit, Desktop and Minitower Miscellaneous Plastics Kit2-18 Spare Parts 2.8 Miscellaneous PartsMiscellaneous Parts Miscellaneous PartsDocumentation and Software not illustrated 2.9 Shipping Boxes2.10 Documentation and Software Shipping Boxes not illustrated3.1 Routine Care REMOVAL AND REPLACEMENT PRELIMINARIES3.1.1 Cleaning Safety Precautions 3.1.2 Cleaning the Computer Case3.1.3 Cleaning the Keyboard 3.1.4 Cleaning the Monitor3.1.5 Cleaning the Mouse 3.2 Electrostatic Discharge Information 3.2.1 Generating Static3.2.2 Preventing Electrostatic Damage to Equipment Static Shielding Protection Levels 3.2.3 Personal Grounding Methods and Equipment3.2.4 Grounding Workstations 3.2.5 Recommended Materials and Equipment3.3.2 Screws 3.3 Service Considerations3.3.3 Cables and Connectors 3.3.1 Tools and Software Requirements3.3.5 Plastic Parts 3.3.4 Hard DrivesREMOVAL AND REPLACEMENT PROCEDURES 4.1 Disassembly Sequence Chartchapter 4.2 Disassembly Preparation Installing the Feet 4.3 Feet InstallationReplacing the Compaq Logo Plate 4.4 Logo Plate4.5 Cable Lock To remove the cable lock provision, reverse the above procedure Installing the Cable Lock Provision - Intel 810/810e4-6 Removal and Replacement Procedures 4.6 Access Panel Removing the Front Bezel 4.7 Front BezelRemoving the Power Button 4.8 Power ButtonRemoving the Subpanel and Bezel Blanks 4.9 Subpanel and Bezel BlanksDisconnecting the Power Switch 4.10 Power SwitchDrive Positions 4.11 Mass Storage DevicesUsing the Cable-Select Feature with Ultra ATA Devices 4.11.1 Removing an Internal 3.5-Inch Hard Drive Disconnecting the CablesUnlocking the Drives 8. Remove the four guide screws from the drive Releasing the Drives 4.11.2 Removing an External 5.25-Inch DriveRemoving an External 5.25-inch Drive 4-18 Removal and Replacement Procedures 4.11.3 Removing an External 3.5-Inch Drive8. Remove the drive bezel To replace the drive, reverse the previous procedures Compaq Deskpro EP Series of Personal Computers 4.12 Removing the DrivelocksDrivelock Mechanism 4-21Removing the Drivelock Mechanism 4-22 Removal and Replacement Procedures11. Remove the spring from the post see inset Deskpro EP Expansion Slots - 440BX 2-DIMM Model 4.13 Expansion Boards4.13.1 440BX 4-24 Removal and Replacement Procedures4-25 4.13.2 Intel 810 and 810eDeskpro EP Expansion Slots - Intel Deskpro EP Expansion Slots - Intel 810eRemoving the Expansion Board 4.13.3 Removing an Expansion BoardRemoving the Expansion Board Slot Cover 4.13.4 Installing an Expansion Board6. Secure the board to the chassis with the retaining screw Removing the Board Guide 4.14 Board Guide4.15 System Memory 4.15.1 440BX4.15.2 Intel 810/810e Installing a DIMM Module 4.16.1 AGP Graphics Board Removal 440BX 4.16 AGP Graphics Board 440BXInstalling the Memory Module 4.16.2 Graphics Memory Upgrade 440BX4.17.1 Processor 4.17 Processor ComponentsTo install a new processor, reverse this procedure 4-36 Removal and Replacement Procedures Removing the Processor Rails 4.17.2 Processor Guide RailsReinstall the system board in the computer chassis Removing the System Board 4.18 System BoardRemoving the Speaker From the Side of the Drive Cage 4.19 Internal SpeakerCompaq Deskpro EP Series of Personal Computers To install the new speaker, reverse the preceding stepsRemoving the Speaker From the Rear of the Chassis 4-41Locating the Battery on the System Board - 440BX 4.20 Lithium BatteryCompaq Deskpro EP Series of Personal Computers Locating the Battery on the System Board - IntelLocating the Battery on the System Board - Intel 810e 4-435. Lift the battery out of the holder Removing the Fan 4.21 Fan AssemblyRemoving the Power Supply - 440BX 4.22 Power SupplyCompaq Deskpro EP Series of Personal Computers To replace the power supply, reverse the above procedureRemoving the Power Supply - Intel 810/810e 4-47Activating the Drivelocks Shown from the Rear of the Chassis 4.23 Converting a Desktop to a MinitowerInstalling a Drive in the Minitower Configuration 7. Reconnect the power, signal, and audio cables to the drives 4.24 Converting a Minitower to a Desktop 4-52 Removal and Replacement Procedures Installing a Drive in the Desktop Configuration8. Reconnect the power, signal, and audio cables to the drives 5.1 System Board CONNECTORS, JUMPERS, AND SWITCHES5.1.1 Connectors, Jumpers, and Switches Connectors, Jumpers, and Switches - 440BX Three-DIMM BoardSystem Board Overview - 440BX Two-DIMM Board Connectors, Jumpers, and Switches - 440BX Two-DIMM BoardConnectors, Jumpers, and Switches - Intel 810e PCA=010697-101 5-2 Connectors, Jumpers, and SwitchesDescription Connectors, Jumpers, and Switches - Intel 810/810e Two-DIMM BoardSystem Board Overview - Intel 810 Two-DIMM Board System Board Overview - Intel 810e Two-DIMM BoardSwitch SW1 Settings 440BX 5.1.2 SwitchesE50 Jumper Location 5.1.3 Jumpers 440BXDisabling or Clearing the Power-On and Setup Passwords 440BX Clearing Configuration Memory CMOS 440BX5-6 Connectors, Jumpers, and Switches E49 Jumper Location 5.1.4 Jumpers Intel 810/810e5-8 Connectors, Jumpers, and Switches Disabling or Clearing the Power-On and Setup Passwords Intel 810/810eCMOS Button SW50 Location Clearing Configuration Memory CMOS - Intel 810/810e5.2 Hard Drives 5.2.1 Using the Cable-Select Feature with Ultra ATA DevicesFujitsu 5.2.2 Drive Jumper SettingsDefinition SeagateDefinition Maxtor Ultra ATA Hard Drive Jumper SettingsMaxtor Ultra ATA Hard Drive Jumper Settings 5-12 Connectors, Jumpers, and Switches6.1.1 SPECIFICATIONS6.1 Specifications SystemHardware IRQ Interrupts6.1.2 6-2 SpecificationsHardware DMA 6.1.4 I/O6.1.3 System Function Shipping ConfigurationI/O Continued System Function Shipping Configuration6-4 Specifications I/O Address Hex6.2.1 6.2 Drives6.1.5 Memory Map 1.44-MB Diskette Drive3.2-GB 6.2.26-6 Specifications Ultra ATA Hard Drives6.2.3 CD-ROM Drives 24X Max32X Max 6-8 Specifications CD-ROM continued40X Max 6.5.1 ATI RAGE PRO TURBO 1X AGP 6.5 Supported Graphics Resolutions6.3 Compaq Enhanced Keyboard 6.4 2-Button Mouse6-10 Specifications 6.5.2 ATI RAGE PRO IIC AGP6.5.3 NVIDIA RIVA 128 AGP 6.5.4 Matrox MGA G100 AGP6.5.5 Matrox Millenium G200-SD AGP 6.5.6 Matrox Millenium G400-SG AGP6.5.7 Integrated Intel 3D Graphics 6.6 Audio Controllers 6-12 Specifications440BX440BX 6-13 Intel 810/810echapter SERVICE NOTESIndex Page Western Digital EIDE hard drive jumper settings system design, 1-3 specifications system boardtools service considerations Ultra ATA devices, 4-13 Ultra ATA hard drive specifications134011-004 181099-001