HP Vectra VL 5/xxx manual IRQs, DMAs, and I/O Addresses Used by Your PC

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3 Troubleshooting Your PC

Technical Information

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

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

DMAs	DMA 0	free
used by PC	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	170h - 177h, 376h IDE secondary channel
used by PC	1F0h - 1F7h, 3F6h IDE primary channel
	278h - 27Fh (and 3A8h) parallel port
	2E8h - 2EFh serial port
	2F8h - 2FFh serial port
	370h - 371h integrated I/O controller
	378h - 37Fh parallel port
	3B0h - 3DFh (3B0-3BB,3O0-3DF) integrated video graphics controller
	3E8h - 3EFh serial port
	3F0h - 3F5h, 3F7h integrated flexible disk controller
	3F8h - 3FFh serial port
	496h - 497h HP reserved
	678h - 67Bh parallel port if ECP mode is selected
	778h - 77Bh parallel port if ECP mode is selected

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Contents User’s Guide Page User’s Guide Who this Manual is For Important Safety InformationImportant Ergonomic Information Page Contents Removing and Replacing the Cover Installing Mass Storage DevicesInstalling Accessory Boards If Your PC Has a Software Problem Hewlett Packard Support and Information Services HP Setup ProgramGlossary Index Xii Setting Up and Using Your PC Accessories When you receive your PC, unpack all the componentsUnpacking Your PC Try to move it without helpConnections for Models with Integrated Video Display Connecting the Mouse, Keyboard, Display and PrinterConnections for Models with MGA Millennium Video Board Electronic servicesConnecting to a Network Connecting Audio Accessories Grounded outlet Connecting the Power CablesYour PC’s Hardware Control Panel Press this button to turn the power on or off to your PCYour PC’s hardware control panel is on the front of your PC Scsi hard disk drive, this light will not workStarting Your PC Starting and Stopping Your PCInitializing Your Software Starting the PC for the First TimeAfter Your PC Has Restarted Stopping Your PC Creating Master DiskettesSetting 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 Cache Memory Up to Four Accessory Boards Accessories You Can InstallFront-Access Device Shelf Video MemoryCheck that you have installed all your accessories Replacing the Cover after Installing AccessoriesRemoving and Replacing the Cover Removing the CoverMoving and Replacing the Power Supply Static electricity can damage electronic components Installing MemoryInstalling Main Memory Identified here as C is the one closest to the processor All cables and power cordsClip and pull the module forward and out of the socket Refer toHandle the accessory as little as possible and with care Installing an Optional Cache Memory ModuleUpgrade this to 512 KB Installing a Video Memory Upgrade Integrated Video Models To Install Video Memory ModulesAfter Installing a Video Memory Upgrade Upgrading the MGA Millennium Board Memory Switch Use Switch Block to Connecting IDE Devices Installing Mass Storage DevicesConfiguring an IDE Device After Installation Jumper SettingsConfiguration Connections to data cables Examples of multiple IDE drive combinationsInstalling an IDE Hard Disk Drive in the Rear Shelf Installing an IDE Hard Disk Drive in the Bottom Shelf Page Tape drive can be installed in the bottom shelf Installing a Tape Drive in the Bottom ShelfPage Configuring non-Plug and Play ISA Accessory Boards Installing Accessory BoardsConfiguring Accessory Boards with Plug and Play Installing the Board Installing an Accessory Board refer to facing Installing a BNC Coax Adapter Remove the metal plug Remove the nut To Install a BNC Coax AdapterInstalling an OverDrive Processor Processor Cables and power cordsInstalling the Security Bracket Troubleshooting Your PC HP Summary Screen Solving ProblemsIf Your PC Does Not Start Properly Display is Blank and There Are No Error MessagesCorrectly installed If You Cannot Start Your PC from a Modem If a Post Error Message is DisplayedClear the configuration Clearing the PC’s Configuration MemoryIf You Cannot Turn Off Your PC If Your PC Has a Hardware ProblemDisplay Does Not Work Properly If Your Display is Blurred or UnreadableIf Nothing is Displayed on the Screen Other Display ProblemsIf Your Mouse Does Not Work If Your Keyboard Does Not WorkEnsure that the keyboard is correctly connected Ensure that the mouse is correctly connectedIf Your Printer Does Not Work If the Flexible Disk Drive Does Not Work If the Hard Disk Does Not Work If the Hard DiskNot Work Cable connections or jumper settings If the CD-ROM Drive Has a ProblemCD-ROM Drive Does Not Work CD-ROM Drive is IdleIf an Accessory Board Does Not Work If You Have Forgotten Your Password If Your PC Has a Software ProblemIf the Date and Time are Incorrect If You Have a Network ProblemIf Your Application Software Does Not Work No Sound When Running Any Applications If Your PC Has an Audio ProblemSounds MS-DOS Games Give Not enough memory ErrorsChanging the Battery Strip supplied External battery as followsCable to the battery connector on the system board Technical Information System Board SwitchesBus Switch1 All measurements are in watts rms Power ConsumptionIRQs, DMAs, and I/O Addresses Used by Your PC Integrated Video Graphic Information HP Setup ProgramHewlett Packard Support and Information Services Introduction Service Means of AccessHP SupportPack Your HP Authorized ResellerRegion Phone Number Fax Number HP Support Assistant CD-ROMAt the CompuServe ! prompt, type GO HP Hewlett-Packard Information ServicesHP Forum on CompuServe 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/RegionAustralia Asia Pacific Ordering Drivers and Bios on DisketteEurope HP Support Services Customer Support Center Hewlett-Packard Telephone SupportNumber is +1 970 Country1 Language Local NumberNumber 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 Computer is running as an unattended network server From reflecting back along the cable Index LAN IndexRegulatory 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 Part Number D4550-90001