HP dc7800 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

■Intel Wired for Management (WfM) ver. 2.2

■Alert Standard Format (ASF) 2.0

■ACPI and OnNow

■SMBIOS 2.4

■Intel PXE boot ROM for the integrated LAN controller

■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

The BIOS firmware is contained in a 1024 x 8 (8 Mb) flash ROM part. 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 engine functions (8.7)

Technical Reference Guide

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8-1

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Contents October Technical Reference GuideTechnical Reference Guide Contents Processor/Memory Subsystem System SupportInput/Output Interfaces Integrated Graphics Subsystem Power and Signal DistributionError Messages and Codes Index System BiosAdditional Information Sources About this GuideModel Numbering Convention Online ViewingIntroduction Notational Conventions Serial NumberSpecial Notices ValuesAcronyms and Abbreviations Acronym or Description Common Acronyms and AbbreviationsCmos CMCCPQ CPUFifo EscdFPM FPUAcronym or Abbreviation Description Acronyms and AbbreviationsPCI PCAPCI-E PCMSimd SgramSimm SmartVDC VACVesa VGAIntroduction System OverviewFeatures Feature Difference Matrix by Form Factor Sodimm Dimm4GB 8GB System Architecture Architectural Differences By Form FactorFunction HP Comapq dc7800 Business PC Architecture, Block diagram Intel Processor Support Chipset Chipset Components and FunctionalityComponents Function System Memory Support ComponentsSupport Component Functions Component Name FunctionSerial and Parallel Interfaces Mass StorageUniversal Serial Bus Interface Network Interface ControllerAudio Subsystem Graphics SubsystemIntegrated Graphics Subsystem Statistics Integrated Graphics ControllerEnvironmental Specifications Factory Configuration SpecificationsPower Supply Electrical Specifications Parameter Operating Non-operatingParameter Usdt SFF CMT Physical SpecificationsParameter Measurement Diskette Drive SpecificationsDVD/CD-RW SuperMulti Optical Drive SpecificationsParameter CD-RW/DVD-ROM Combo LightScribe ComboParameter 80 GB 160 GB 250 GB Hard Drive SpecificationsSystem Overview Processor/Memory Subsystem Intel Processor Overview Intel ProcessorsSupported Processors Processor Changing/UpgradingClock FormMemory Subsystem Memory Mapping and Pre-allocation Memory UpgradingMemory Socket Loading Channel a Channel B Socket Socket 2 Socket 4 TotalSystem Memory Map for maximum of 8 gigabytes PCI 2.3 Bus Operation PCI Bus OverviewPCI Component Function # Device # Wired to PCI Component Configuration Access PCI BusSoftware/Driver Layer PCI Express Bus OperationTransaction Protocol Layer PCI Bus Mastering DevicesOption ROM Mapping PCI Power Management SupportPCI Interrupts Link LayerPCI Connectors PCI 2.3 ConnectorPCI 2.3 Bus Connector Pinout PCI Express Bus Connector Pinout PCI Express ConnectorsSystem Resources Apic ModeInterrupts ModeConnector PCI slot 1 PCI slot 2 PCI slot 3 Direct Memory AccessPCI Interrupt Distribution System Interrupts System BoardClearing Cmos Real-Time Clock and Configuration MemorySystem Management Configuration Memory Cmos MapStandard Cmos Locations Security FunctionsSetup Password Power-On / Setup PasswordCable Lock Provision Interface SecuritySmart Cover Lock Optional Power ManagementAcpi Wake-Up Events Acpi Wake-Up Event System Wakes FromSystem Status System Status PowerLED Beeps Action RequiredThermal Sensing and Cooling System Operational Status LED IndicationsSystem I/O Map Register Map and Miscellaneous FunctionsGpio Functions ICH9 FunctionsSystem I/O Map Controller Functions Input/Output Interfaces Pin Sata Connector Pinout Sata InterfacePin Description Pin Slim IDE Connector Pinout Pin SignalPata Interface 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 InterfaceParallel Interface Connector DB-25 Parallel Connector PinoutPin Signal Function Keyboard Interface Operation Keyboard/Pointing Device InterfaceKeyboard/Pointing Device Connector Pinout Keyboard/Pointing Device Interface ConnectorPointing Device Interface Operation DataUSB Connector Location USB ConnectorController Signals USDT, SFF Form Factors CMT Form Factor Universal Serial Bus InterfaceUSB Cable Data USB Connector PinoutUSB Cable Length Data USB Color CodeAudio Subsystem Audio Subsystem Functional Block DiagramHD Audio Controller HD Audio Link BusAudio Multistreaming Audio Specifications HD Audio Subsystem SpecificationsADC/DAC LAN I/F NIC Network Interface ControllerPower Management Support Wake-On-LAN SupportAlert Standard Format Support NIC Specifications NIC ConnectorNIC Specifications Parameter Compatibility standard orprotocolIntegrated Graphics Subsystem Functional Description Q35 IGC, Block diagramIGC Standard 2D Display Modes Sdram Installed Maximum Memory AllocationDisplay Modes Resolution Maximum Refresh Rate Analog Digital MonitorUpgrading Monitor Connectors Analog Monitor ConnectorDB-15 Monitor Connector Pinout Digital Monitor Connector Integrated Graphics Subsystem Usdt Power Distribution Power DistributionUsdt 135-Watt Power Supply Unit Specifications SFF Power DistributionMin Range Current Max Surge Tolerance Loading Ripple SFF 240-Watt Power Supply Unit SpecificationsCMT Power Distribution CMT 365-Watt Power Supply Unit SpecificationsRange or Min Current Max Surge Tolerance Loading Ripple Energy Star Compliancy Shows the power supply cabling for CMT systemsPower Button Power ControlPower Button Actions Pressed Power Button ResultsPower Button Actions Power LED Condition Wake-On-LAN Wake Up EventsPower Transition OS Restart System Power StatesState System Condition Consumption To S0 by RequiredCR1 +5 VDC LED Signal DistributionSystem Board Component Designations Power and Signal Distribution System Bios ROM Flashing UpgradingChangeable Splash Screen Boot Device Order Boot FunctionsNetwork Boot F12 Support Memory Detection and ConfigurationBoot Error Codes Boot Error CodesVisual power LED Audible speaker Meaning Function Mode Client Management FunctionsClient Management Functions INT15 Drive Fault Prediction Temperature StatusSystem ID and ROM Type System ID NumbersType Data SmbiosManagement Engine Functions USB Legacy SupportNumerics IndexIndex

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