USB Legacy Support, Management Engine Functions | HP 8000 tower

8.6 USB Legacy Support

System BIOS

8.6 USB Legacy Support

The system BIOS ROM checks the USB port, during POST, for the presence of a USB keyboard. This allows a system with only a USB keyboard to be used during ROM-based setup and also on a system with an OS that does not include a USB driver.

On such a system a keystroke will generate an SMI and the SMI handler will retrieve the data from the device and convert it to PS/2 data. The data will be passed to the keyboard controller and processed as in the PS/2 interface. Changing the delay and/or typematic rate of a USB keyboard though BIOS function INT 16 is not supported.

8.7 Management Engine Functions

The management engine function of Intel AMT allows a system unit to be managed remotely over a network, where or not the system is powered up or not1. The system BIOS can request the management engine to generate the following alerts:

■Temperature alert

■Fan failure alert

■Chassis intrusion alert

■Watchdog timer alert

■No memory installed alert

1.Assumes the unit is connected to an active AC outlet.

8-8

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Technical Reference Guide

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HP 8000 tower manual USB Legacy Support, Management Engine Functions

Contents

Technical Reference Guide HP Compaq 8000 Elite Series Business Desktop ComputersDocument Part Number December First Edition December Document Part Number Technical Reference GuideHP Compaq 8000 Elite Series Business Desktop Computers 2 System Overview Contents1 Introduction 5 Input/Output Interfaces 3 Processor/Memory Subsystem4 System Support 7 Power and Signal Distribution 6 Integrated Graphics Subsystem 8 SYSTEM BIOS A Error Messages and Codes Index Introduction 1.1 About this Guide1.2 Additional Information Sources 1.1.1 Online Viewing 1.3 Serial Number 1.4 Notational Conventions1.4.1 Special Notices 1.4.2 Values 1.5 Common Acronyms and Abbreviations Acronyms and AbbreviationsAcronym or Abbreviation Table 1-1 Continued Table 1-1 Continued Acronyms and AbbreviationsAcronym or Abbreviation Table 1-1 Continued Acronyms and AbbreviationsAcronym or Abbreviation Table 1-1 Continued Acronyms and AbbreviationsAcronym or Abbreviation Table 1-1 Continued Acronyms and AbbreviationsAcronym or Abbreviation Table 1-1 Continued 1-10 System Overview 2.1 Introduction 2.2 Features Feature Differences by Form Factor USDT 2.3 System Architecture Architectural Differences by Form Factor System Overview Chipset Components and Functionality 2.3.1 Intel Processor Support2.3.2 Chipset Support Component Functions 2.3.3 Support Components2.3.4 System Memory 2.3.5 Mass Storage 2.3.6 Serial Interface2.3.7 Universal Serial Bus Interface 2.3.8 Network Interface Controller Integrated Graphics Subsystem Statistics 2.3.9 Graphics Subsystem2.3.10 Audio Subsystem Environmental Specifications Factory Configuration 2.4 Specifications2.3.11 HP ProtectTools Embedded Security Power Supply Electrical Specifications Physical Specifications 2-12 Processor/Memory Subsystem 3.1 Introduction 3.2 Intel Processors 3.2.1 Intel Processor Overview 3.2.2 Processor Changing/Upgrading Supported Processors partial listing 3.3 Memory Subsystem Memory Socket Loading 3.3.1 Memory Upgrading3.3.2 Memory Mapping and Pre-allocation Base Memory Figure 3-2. System Memory Map for maximum of 8 gigabytesExpansion Area System Support 4.1 Introduction4.2 PCI Bus Overview 4.2.1 PCI 2.3 Bus Operation PCI Component Configuration Access Wired toSystem Support PCI Bus 4.2.2 PCI Express Bus Operation Software/Driver LayerTransaction Protocol Layer PCI Bus Mastering Devices 4.2.5 PCI Power Management Support 4.2.3 Option ROM Mapping4.2.4 PCI Interrupts Link Layer 4.2.6 PCI Connectors PCI 2.3 ConnectorPCI 2.3 Bus Connector Pinout Figure 4-2. 32-bit, 5.0-volt PCI 2.3 Bus Connector Figure 4-3. PCIe Bus Connectors PCIe ConnectorsPCIe Bus Connector Pinout 4.3 System Resources 4.3.1 Interrupts8259 Mode APIC Mode 4.3.2 Direct Memory Access PCI Interrupt Distribution 4.4 Real-Time Clock and Configuration Memory 4.4.1 Clearing CMOS 4.5 System Management 4.4.2 Standard CMOS Locations4.5.1 Security Functions Configuration Memory CMOS Map Power-On / Setup Password Setup PasswordCable Lock Provision I/O Interface Security ACPI Wake-Up Events 4.5.2 Power ManagementSmart Cover Lock Optional System Operational Status LED Indications 4.5.3 System Status4.5.4 Thermal Sensing and Cooling 4.6 Register Map and Miscellaneous Functions 4.6.1 System I/O Map Function System I/O MapI/O Port SIO Controller Functions 4.6.2 GPIO FunctionsICH10 Functions Input/Output Interfaces 5.1 Introduction 5.2 SATA/eSATA Interfaces 5.2.1 SATA interface 5.2.2 eSATA interface 5.3 Serial Interface DB-9 Serial Connector Pinout 5.4 Parallel Interface Support 5.4.1 Standard Parallel Port Mode5.4.2 Enhanced Parallel Port Mode 5.4.3 Extended Capabilities Port Mode e w q - 9 8 7 6 5 4 3 2 1 g f d s a p o i u y t r 5.4.4 Parallel Interface ConnectorDB-25 Parallel Connector Pinout 5.5 Keyboard/Pointing Device Interface 5.5.1 Keyboard Interface Operation Keyboard/Pointing Device Connector Pinout 5.5.3 Keyboard/Pointing Device Interface Connector5.5.2 Pointing Device Interface Operation 5.6.1 USB Connector 5.6 Universal Serial Bus Interface 5.6.2 USB Cable Data USB Connector PinoutUSB Cable Length Data USB Color Code 5.7 Audio Subsystem Figure 5-8. Audio Subsystem Functional Block Diagram 5.7.3 Audio Multistreaming 5.7.1 HD Audio Controller5.7.2 HD Audio Link Bus HD Audio Subsystem Specifications 5.7.4 Audio SpecificationsThe specifications for the HD Audio subsystem are listed in Table 5.8 Network Interface Controller 5.8.2 Alert Standard Format Support 5.8.3 Power Management Support5.8.1 Wake-On-LAN Support Table 5-11. NIC Specifications 5.8.4 NIC Connector5.8.5 NIC Specifications Integrated Graphics Subsystem 6.1 Introduction 6.2 Functional Description Maximum Memory Allocation SDRAM InstalledGMA 4500 Memory Allocation 6.3 Display Modes 6.4 Upgrading 6.5 Monitor Connectors 6.5.1 Analog Monitor Connector 6.5.2 DisplayPort Connector Figure 6-3. DisplayPort Connector, as viewed from rear of chassis Integrated Graphics Subsystem 7.1 Introduction Power and Signal Distribution7.2 USDT Power Distribution 7.3 SFF/CMT Power Distribution Table 7-1 lists the specifications of the external supplyUSDT 135-Watt Power Supply Unit Specifications Figure 7-2. SFF/CMT Power Distribution and Cabling, Block Diagram SFF 240-Watt Power Supply Unit Specifications CMT 320-Watt Power Supply Unit Specifications 7.4 Power Control 7.4.1 Power Button Power LED Indications Power LEDPower failure power supply is overloaded. Check storage Pre-video memory error. Incompatible or incorrectly seated 7.5 Power Management 7.4.2 Wake Up EventsPower Management Event Wake-On-LAN System Power States PowerPower State 7.6 Signal Distribution System Board Connector, Indicator, and Switch DesignationsDesignator Component function Figure 7-3. System Board Header Pinouts Figure 7-5 shows pinouts of headers used on the sytem boardsTable 7-7. Continued 7-10 System BIOS 8.1 Introduction 8.2.2 Changeable Splash Screen 8.2 ROM Flashing8.2.1 Upgrading 8.3 Boot Functions 8.3.1 Boot Device Order8.3.2 Network Boot F12 Support 8.3.3 Memory Detection and Configuration 8.3.4 Boot Error Codes 8.4 Client Management Functions System ID Numbers 8.4.1 System ID and ROM Type8.4.2 Temperature Status 8.5 SMBIOS SMBIOS Functions 8.6 USB Legacy Support 8.7 Management Engine Functions A.1 Introduction Error Messages and CodesA.2 Beep/Power LED Codes A.3 Power-On Self Test POST Messages Error Messages and Codes Power-On Self Test POST Messages Error Message1794--Inaccessible device attached to SATA 1796-SATA Cabling Error 1801-Microcode Patch Error A.4 System Error Messages Error Messages and Codes Table A-4 A.5 Memory Error MessagesMemory Error Messages A.6 Keyboard Error Messages Memory Error MessagesTable A-4. Continued Message A.7 Printer Error Messages A.8 Video Graphics Error MessagesInt. test, LpBk. test., and data register failed Int. test, LpBk. test., and cntrl. register failed A.9 Diskette Drive Error Messages A.10 Serial Interface Error Messages Table A-9 Serial Interface Error Messages A.11 Modem Communications Error Messages Table A-10 Modem Communications Error Messages A.12 System Status Error Messages A.13 Hard Drive Error Messages Cntlr. failed to deallocate bad sectors xx = 00, Hard drive ID test xx = 01, Hard drive format test A.14 Hard Drive Error Messages A.15 Video Graphics Error Messages A.16 Audio Error MessagesEGA Mono. graphics mode test failed Lightpen graphics test failed, no resp A.17 DVD/CD-ROM Error Messages A.18 Network Interface Error Messages Probable Cause A.19 SCSI Interface Error Messages 65xx-xx, 66xx-xxMessage A.20 Pointing Device Interface Error Messages 8601-xx A-20 Index Numerics