Compaq D310 Bios Addresses, System Memory Map, HP I/O Port Map I/O Addresses Used by the System

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BIOS Overview

BIOS Addresses

This section provides a summary of the main features of the HP system BIOS.

System Memory Map

Reserved memory used by accessory boards must be located in the area from C8000h to EFFFFh.

0000

0000

- 0000 03FF

Real-mode IDT

 

 

 

 

0000

0400

- 0000 04FF

BIOS Data Area

 

 

 

 

0000

0500

- 0009 FC00

Used by OS

 

 

 

0009

FC00 - 0009 FFFF

Extended BIOS Data Area

 

 

000A_0000 - 000B_FFFF

Video RAM or SMRAM (not visible unless in SMM)

 

 

 

 

000C

0000

- 000C 7FFF

Video ROM

 

 

 

 

000C

8000

- 000E 0000

Adapter ROM, RAM, memory-mapped registers

 

 

 

000E 0000

- 000F FFFF

System BIOS (Flash/Shadow)

 

 

10 0000 - FF FFFF

Memory (1MB to 16MB)

 

 

 

100 0000

- 1FF FFFF

Memory (16MB to 32MB)

 

 

 

200 0000

-3FF FFFF

Memory (32MB to 64MB)

 

 

 

400 0000

-1FFF FFFF

Memory (64MB to 512MB)1

FFF80000 - FFFF FFFF

512KB BIOS (Flash)

 

 

 

 

 

1.The last MB of memory in this area is used as Unified Memory Architecture (UMA) embedded memory.

HP I/O Port Map (I/O Addresses Used by the System)

Peripheral devices, accessory devices and system controllers are accessed via the system I/O space, which is not located in system memory space. The 64KB of addressable I/O space comprises 8-bit and 16- bit registers (called I/O ports) located in the various system components. When installing an accessory board, ensure that the I/O address space selected is in the free area of the space reserved for accessory boards (100h to 3FFh).

Although the Setup program can be used to change some of the settings, the following address map is not completely BIOS dependent, but is determined partly by the operating system. Note that some of the I/O addresses are allocated dynamically.

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Contents Technical reference manual Page Installing, Configuring and Upgrading TroubleshootingInformation Roadmap Discover and use your productInformation on the hp support web site System recovery cd-romsYour computer’s online information Finding Information Type of Information LocationBibliography Intel Chipsets developer.intel.comTable of Contents Serviceability System Overview Description System FeaturesSystem Overview Front Panel Package FeaturesRear Connectors AGP Graphic card available as an option Inside the PCRear View Specifications Physical CharacteristicsEnvironmental Specifications Acoustic Noise EmissionPower Consumption System Features System Features System Board LayoutSystem Board Components Main Features ChipsetIntel 845G System Block Diagram Intel Celeron Socket ProcessorIntel Pentium 4 Socket Main Memory Dimm slotsAccessory Board Slots PCI Slot NumbersSystem Board Switches FunctionHard Disk Drives Floppy Disk DrivesUltra-ATA/100 Hard Disk Drives 20GB 40GB 80GBFeatures of the CD-RW Drive Optical DrivesCD-RW Technology Writing CD-R 10 = 1,500 KB/s MaxFeatures of the DVD-ROM Drive Digital Versatile Disk DVD Technology Region Audio features of DVD-VideoDVD Region Codes Features of the CD-ROM Drive Key Features GraphicsIntel 845G Chipset Integrated Graphics Memory Usage with Dynamic Video Memory TechnologySupported Resolutions Resolutions Refresh RatesATI Radeon 65K colors 1920x1440 16.7M colors 1920x1200Hdvi to VGA adapter 65K colors 2048x1536 16.7M colorsAudio Analog Devices AD1981ALAN Controller LAN Connector Description Status Flashing OffUSB 2.0 Connectors Serviceability Serviceability How to rotate Drive bay upwardsHow to remove the DVD CD-RW, or CD-ROM drive Evo D310 Micro DesktopBios Overview Bios Overview Bios SummaryEntering the Configuration and Diagnostics menu Using the PC Setup Program Main MenuAdvanced Menu Security MenuExit Menu Boot MenuPower Menu Power Management and Wake Up Events Wake Up EventHP I/O Port Map I/O Addresses Used by the System Bios AddressesSystem Memory Map Bios Overview Address Ports Function DMA Channel ControllersBios Overview DMA controller Interrupt ControllersWindows 2000 and Windows XP Interrupt Request DescriptionPost Tests PCI Interrupt Request LinesMain Bios runtime code is to be decompressed To enable floppy and timer IRQ, enable internal cacheFloppy read error Start searching AMIBOOT.ROM file in root directoryTo do any setup before Int vector init Any initialization before setting video mode to be doneGoing for monochrome mode and color mode setting Video display checking over. Display mode to be set nextPassword checked. About to do programming before setup Setup options programming after Cmos setup about to startGoing for hard disk controller reset Floppy setup complete. Hard disk setup to be done nextSystem configuration is displayed To build MP table if neededTo uncompress DMI data and execute DMI Post init Going to copy any code to specific areaHP e-DiagTools Preboot Diagnostics Beep Codes MeaningDrivers and Software Drivers Software Operating SystemSoftware DiagToolsBios Updates Evo D310 Micro Desktop Page Created in France Date 06/2002
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