HP HEWLET VECTRA VA 6/XXX manual IRQs, DMAs, and I/O Addresses Used by Your PC

Page 61

3 Troubleshooting Your PC

Technical Information Needed for Troubleshooting

IRQs, DMAs, and I/O Addresses Used by Your PC

IRQs used by PC	IRQ0	system timer
	IRQ1	keyboard
The IRQ, DMA, and I/O address	IRQ2	system cascade
mappings shown here are for a	IRQ3	free if not used for serial port 2
PC with a basic configuration.	IRQ4	free if not used for serial port 1
The resources used by your PC	IRQ5	free if not used for parallel port 2
may vary, depending upon	IRQ6	flexible disk drive controller
which accessory boards are	IRQ7	free if not used for parallel port 1
bundled with the PC.	IRQ8	real-time clock
	IRQ9	available for PCI devices, if not used by ISA board
	IRQ10	available for PCI devices, if not used by ISA board
	IRQ11	available for PCI devices, if not used by ISA board
	IRQ12	mouse
	IRQ13	co-processor
	IRQ14	integrated IDE hard disk drive controller
	IRQ15	free if not used by second IDE controller

DMAs used by PC	DMA 0	free
	DMA 1	free if not used for parallel port in Setup
	DMA 2	flexible disk drive controller
	DMA 3	free if not used for parallel port in Setup
	DMA 4	used to cascade DMA channels 0-3
	DMA 5	free
	DMA 6	free
	DMA 7	free

I/O Addresses used by PC	2Eh - 2Fh, integrated I/O controller
	96h - 97h, “Little Ben”
	E0h - E7h, HP reserved
	170h - 177h, 376h IDE secondary channel
	1F0h - 1F7h, 3F6h IDE primary channel
	278h - 27Fh parallel port 2
	2E8h - 2EFh serial port 4
	2F8h - 2FFh serial port 2
	378h - 37Fh parallel port 1
	3B0h - 3DFh integrated video graphics controller
	3E8h - 3EFh serial port 3
	3F0h - 3F5h, 3F7h integrated flexible disk controller
	3F8h - 3FFh serial port 1
	496h - 497h HP reserved
	678h - 67Dh parallel port if ECP mode is selected
	778h - 77Dh parallel port if ECP mode is selected

51

Image 61

Contents User’s Guide Page User’s Guide Who this Manual is For Important Safety InformationImportant Ergonomic Information Page Contents Installing Mass Storage Devices Installing MemoryInstalling Accessory Boards Installing an OverDrive ProcessorHP Summary Screen and Setup Program If Your PC Has a Software ProblemHewlett-Packard Information Services Setting Up and Using Your PC Accessories When you receive your PC, unpack all the componentsUnpacking Your PC Try to move it without helpConnecting the Mouse, Keyboard, Display and Printer Down before connecting headphones or speakers Connecting Audio AccessoriesVolume control in that position Damage your hearingConnectors are shaped to go in one way only Connecting the Power CablesTo grounded outlets PC is as class 1 laser productStarting Your PC Starting and Stopping Your PCStopping Your PC Setting an Administrator Password Setting PasswordsPassword, on Setting a User PasswordThen press ActionAdditional Information and Help Using Power ManagementSetting Up and Using Your PC Additional Information and Help How to Install Accessories In Your PC Accessory part numbers Accessories You Can InstallBefore switching it on again Removing and Replacing the Cover Replacing the Cover after Installing AccessoriesRemoving the Cover Removing the Air Flow Guide Main Memory Modules Installing MemoryStatic electricity can damage electronic components How to Install Accessories In Your PC Installing Memory Upgrading the MGA Millennium Board Memory Switch Use Switch Block to Installing Mass Storage Devices Drives Hard disk driveConfiguration Connections to Data Cables You install additional devicesInstalling an Additional Hard Disk Drive Install any other accessories, before replacing the cover Connectors are shaped to go in one way only. See Internal Not attempt to make any adjustment of the laser unitConnectors on page 20 for more information about which Connectors to useTo Install a Drive Configuring Accessory Boards with Plug and Play Installing Accessory BoardsConfiguring non-Plug and Play ISA Accessory Boards Installing the Board Secure the board Installing an OverDrive Processor Processor processor Troubleshooting Your PC HP Summary Screen Solving ProblemsIf Your PC Does Not Start Properly Display is Blank and There Are No Error MessagesAction Reference Check all internal cables If you are Unable to Change any Values in SetupIf a Post Error Message is Displayed Clear the configuration Clearing the PC’s Configuration MemoryIf Your Keyboard Does Not Work If Your PC Has a Hardware ProblemDisplay Does Not Work Properly Ensure that the keyboard is correctly connectedIf Nothing is Displayed on the Screen If Your Printer Does Not Work If Your Mouse Does Not WorkEnsure that the mouse is correctly connected If the Hard Disk Does Not Work If the Flexible Disk Drive Does Not WorkNot Work If the CD-ROM Drive Has a ProblemCD-ROM Drive is Idle If an Accessory Board Does Not WorkIf You Have Forgotten Your Password If Your PC Has a Software ProblemIf the Date and Time are Incorrect If Your Application Software Does Not WorkIf Your PC Has an Audio Problem Humming Noise From most local stores Changing the BatteryTroubleshooting Your PC Changing the Battery System Board Switches Technical Information Needed for TroubleshootingBus Switch1 HDD Accessories Power ConsumptionAll measurements are in watts rms 180 MHz 200 MHz OffIRQs, DMAs, and I/O Addresses Used by Your PC HP Summary Screen HP Summary Screen and Setup ProgramVA/6xxx Copyright 1995 Hewlett-Packard GZ.xx.xx Using the HP Setup ProgramI n Settings and exit the Setup programTroubleshooting Your PC HP Summary Screen and Setup Program Troubleshooting Your PC HP Summary Screen and Setup Program Hewlett Packard Support and Information Services Introduction Service Means of AccessHP SupportPack Your HP Authorized ResellerRegion Phone Number Fax Number HP Support Assistant CD-ROMHP Forum on CompuServe Hewlett-Packard Information ServicesAt the CompuServe ! prompt, type GO HP HP Forum on America Online HP World Wide Web Site HP BBS LibraryCountry Number Baud Rate World-Wide Web URLHP FAXback on Demand-HP First Access MethodHP Audio Tips USA only HP Automated Support Directory Country/RegionEurope Ordering Drivers and Bios on DisketteAustralia Asia Pacific HP Support Services Number is +1 970 Hewlett-Packard Telephone SupportCountry Language Local Number Number Method of Payment Charge Type Lifeline Telephone SupportHP Network Phone-in Support Service NPS Covered Time Available From SummaryAsia Hewlett-Packard Marketing HeadquartersPage Glossary Glossary Index URL Regulatory Information and Warranty Regulatory Information FCC for USA only Noise Declaration for Germany HP Hardware Warranty Customer Responsibilities HP Software Product License Agreement HP Software Product Limited Warranty Your HP Vectra PC Physical Characteristics Troubleshooting and Support HP Help Setup HP User’s GuideReference HP Help