HP dc5850 manual System Bios

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8

SYSTEM BIOS

8.1Introduction

The System Basic Input/Output System (BIOS) of the computer is a collection of machine language programs stored as firmware in read-only memory (ROM). The system BIOS includes such functions as Power-On Self Test (POST), PCI device initialization, Plug 'n Play support, power management activities, and the Setup utility. The firmware contained in the system BIOS ROM supports the following operating systems and specifications:

■DOS 6.2, Windows 2000, XP, and Vista (Home and Professional versions)

■Windows NT 4.0 (SP6 required for PnP support)

■OS/2 ver 2.1 and OS/2 Warp

■SCO Unix

■DMI 2.1

■Alert Standard Format (ASF) 2.0

■ACPI and OnNow

■SMBIOS 2.5

■BIOS Boot Specification 1.01

■Enhanced Disk Drive Specification 3.0

■“El Torito” Bootable CD-ROM Format Specification 1.0

■ATAPI Removeable Media Device BIOS Specification 1.0

■Serial ATA Advanced Host Controller Interface (AHCI) 1.2

The BIOS firmware is contained in a flash ROM component. The runtime portion of the BIOS resides in a 128KB block from E0000h to FFFFFh.

This chapter includes the following topics:

■ROM flashing (8.2)

■Boot functions (8.3)

■Client management functions (8.4)

■SMBIOS support (8.5)

■USB legacy support (8.6)

■Management functions (8.7)

Technical Reference Guide

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8-1

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Contents October Technical Reference GuideTechnical Reference Guide Contents Input/Output Interfaces System SupportIntegrated Graphics Subsystem Power and Signal DistributionError Messages and Codes Index System BiosAbout this Guide IntroductionAdditional Information Sources Online ViewingNotational Conventions Serial NumberSpecial Notices ValuesAcronyms and Abbreviations Common Acronyms and AbbreviationsAcronym or Abbreviation Description CDS Eisa LAN PAL Sdvo URL Introduction Introduction System OverviewFeatures SFF Feature Difference Matrix by Form FactorSystem Architecture HP Compaq dc5850 Business PC Architecture, Block diagram Chipset AMD Processor SupportChipset Components and Functionality Components FunctionSystem Memory Support ComponentsSupport Component Functions Component Name FunctionSerial Interface Mass StorageUniversal Serial Bus Interface Network Interface ControllerAudio Subsystem Integrated Graphics ProcessorIntegrated Graphics Subsystem Statistics Integrated Graphics ControllerEnvironmental Specifications Factory Configuration SpecificationsPower Supply Electrical Specifications Parameter Operating Non-operatingParameter SFF Physical SpecificationsSystem Overview Processor/Memory Subsystem Architecture Processor/Memory SubsystemAMD Processor Overview AMD ProcessorsProcessor Changing/Upgrading Supported Processors partial listingMemory Subsystem Memory Mapping and Pre-allocation Memory Loading/UpgradingMemory Socket Loading Channel a Channel B SocketSystem Memory Map for maximum of 8 gigabytes Processor/Memory Subsystem PCI Bus Overview System SupportPCI 2.3 Bus Operation PCI Express Bus Operation Device REQ/GNT Line PCI Connector SlotSoftware/Driver Layer Transaction Protocol LayerOption ROM Mapping PCI Power Management SupportPCI Interrupts Link LayerPCI 2.3 Connector PCI ConnectorsPCI 2.3 Bus Connector Pinout PCI Express Bus Connector Pinout PCI Express ConnectorsSystem Resources Apic ModeInterrupts ModeConnector PCI slot 1 J20 Direct Memory AccessPCI Interrupt Distribution System Interrupts System BoardClearing Cmos Real-Time Clock and Configuration MemorySystem Management Configuration Memory Cmos MapStandard Cmos Locations Security FunctionsCable Lock Provision Power-On / Setup PasswordInterface Security Acpi Wake-Up Events Power ManagementAcpi Wake-Up Event System Wakes From System Status System Status PowerLED Beeps Action RequiredThermal Sensing and Cooling System Operational Status LED IndicationsSystem I/O Map Register Map and Miscellaneous FunctionsPort Function System I/O MapSB700 Functions Gpio FunctionsSIO Controller Functions System Support Input/Output Interfaces Pin Sata Connector Pinout Sata ConnectorSata Interfaces AHCI/RAID SupportImplementing Ahci RAID for Non-Factory Configurations Factory Configuration for RAIDRAID 1-Mirroring with Two Hard Drives Diskette Drive Interface Pin Signal Description Pin Diskette Drive Connector PinoutSerial Interface DB-9 Serial Connector PinoutEnhanced Parallel Port Mode Standard Parallel Port ModeExtended Capabilities Port Mode Parallel Interface SupportDB-25 Parallel Connector Pinout Parallel Interface ConnectorPin Signal Function Keyboard Interface Operation Keyboard/Pointing Device InterfaceKeyboard/Pointing Device Connector Pinout Keyboard/Pointing Device Interface ConnectorPointing Device Interface Operation USB Connector Pinout USB ConnectorSB700 signals USB Connector Location Universal Serial Bus InterfaceUSB Cable Data Signal Insulation colorUSB Cable Length Data USB Color CodeAudio Subsystem Audio Subsystem Functional Block DiagramHD Audio Link Bus HD Audio ControllerAudio Multistreaming HD Audio Subsystem Specifications Audio SpecificationsParameter Measurement LAN I/F NIC Network Interface ControllerWake-On-LAN Support Power Management SupportAlert Standard Format Support NIC Specifications NIC ConnectorNIC Specifications Parameter Compatibility standard orprotocolIntegrated Graphics Processor Functional Description Integrated Graphics Processor, Block diagramUpgrading Analog Monitor Connector Monitor ConnectorsDB-15 Monitor Connector Pinout DVI-D Monitor Connector Pinout DVI-D ConnectorPin Signal Integrated Graphics Processor Power Distribution Power and Signal DistributionSFF 240-Watt Power Supply Unit Specifications SFF Power SupplyMin Range Current Max Surge Tolerance Loading Ripple MT 300-Watt Power Supply Unit Specifications MT Power SupplyRange or Min Current Max Surge Tolerance Loading Ripple Power Button Power ControlPower Button Actions Pressed Power Button ResultsPower LED Indications Condition Wake-On-LAN Wake Up EventsPower Transition OS Restart System Power StatesState System Condition Consumption To S0 by Required System Board Component Designations Signal Distribution Designator Component function Shows pinouts of headers used on the sytem boards Power and Signal Distribution System Bios Upgrading ROM FlashingChangeable Splash Screen Boot Device Order Boot FunctionsNetwork Boot F12 Support Memory Detection and ConfigurationBoot Error Codes Boot Error CodesVisual power LED Audible speaker Meaning Client Management Functions Function ModeClient Management Functions INT15 System ID and ROM Type Temperature StatusSystem ID Numbers System System ID Form Factor Subsystem Device IDType Data Smbios FunctionsManagement Functions USB Legacy SupportBeep/Power LED Codes Error Messages and CodesTable A-1 Beep/Power LED Codes Beeps Power LED Probable CausePower-On Self Test Post Messages Table A-2 Error Messages and Codes Table A-3 System Error Messages Probable Cause System Error MessagesMemory Error Messages Memory Error MessagesTable A-4 Message Probable CauseTable A-5 Keyboard Error Messages Probable Cause Keyboard Error MessagesVideo Graphics Error Messages Printer Error MessagesTable A-6 Printer Error Messages Probable Cause Table A-7 Video Graphics Error Messages Probable CauseTable A-8 Diskette Drive Error Messages Probable Cause Diskette Drive Error MessagesTable A-9 Serial Interface Error Messages Probable Cause Serial Interface Error MessagesModem Communications Error Messages System Status Error Messages System Status Error MessagesTable A-11 Table A-12 Hard Drive Error Messages Probable Cause Hard Drive Error MessagesXx = 03, Hard drive read/write compare test Table A-13 Hard Drive Error Messages Probable Cause Table A-14 Video Graphics Error Messages Probable Cause Audio Error MessagesTable A-15 Audio Error Messages Probable Cause Network Interface Error Messages 17 DVD/CD-ROM Error MessagesDVD/CD-ROM Error Messages Table A-17 Network Interface Error Messages Probable CauseTable A-18 Scsi Interface Error Messages Scsi Interface Error Messages 65xx-xx, 66xx-xxPointing Device Interface Error Messages 8601-xx Error Messages and Codes Numerics IndexIndex

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