Direct Memory Access, PCI Interrupt Distribution | HP 8000 tower

PCI Interrupt Distribution

System Support

Table 4-5.

PCI Interrupt Distribution

					System Interrupts

System Board		PIRQ	PIRQ	PIRQ	PIRQ	PIRQ		PIRQ	PIRQ	PIRQ
Connector		A	B	C	D	E		F	G	H

PCI slot 1	(J20) [1]					A		B	C	D

PCI slot 2	(J21) [1]					D		A	B	C

PCI slot 3	(J22) [2]					C		D	A	B

NOTES:

[1]SFF and CMT only

[2]CMT only

The PCI interrupts can be configured by PCI Configuration Registers 60h..63h to share the standard ISA interrupts (IRQn).

✎The APIC mode is supported by Windows NT, Windows 2000, and Windows XP, and Windows Vista operating systems. Systems running the Windows 95 or 98 operating system will need to run in 8259 mode.

4.3.2Direct Memory Access

Direct Memory Access (DMA) is a method by which a device accesses system memory without involving the microprocessor. Although the DMA method has been traditionally used to transfer blocks of data to or from an ISA I/O device, PCI devices may also use DMA operation as well. The DMA method reduces the amount of CPU interactions with memory, freeing the CPU for other processing tasks. For detailed information regarding DMA operation, refer to the data manual for the Intel 82801 ICH10 I/O Controller Hub.

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Technical Reference Guide

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HP 8000 tower manual Direct Memory Access, PCI Interrupt Distribution

Contents

Document Part Number Technical Reference GuideHP Compaq 8000 Elite Series Business Desktop Computers December Technical Reference Guide HP Compaq 8000 Elite Series Business Desktop ComputersFirst Edition December Document Part Number Contents 1 Introduction2 System Overview 3 Processor/Memory Subsystem 4 System Support5 Input/Output Interfaces 7 Power and Signal Distribution 6 Integrated Graphics Subsystem 8 SYSTEM BIOS A Error Messages and Codes Index 1.2 Additional Information Sources Introduction1.1 About this Guide 1.1.1 Online Viewing 1.4.1 Special Notices 1.3 Serial Number1.4 Notational Conventions 1.4.2 Values Acronym or 1.5 Common Acronyms and AbbreviationsAcronyms and Abbreviations Abbreviation Table 1-1 Continued Acronym or Table 1-1 ContinuedAcronyms and Abbreviations Abbreviation Acronym or Table 1-1 ContinuedAcronyms and Abbreviations Abbreviation Acronym or Table 1-1 ContinuedAcronyms and Abbreviations Abbreviation Acronym or Table 1-1 ContinuedAcronyms and Abbreviations Abbreviation Acronym or 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 2.3.1 Intel Processor Support 2.3.2 ChipsetChipset Components and Functionality 2.3.3 Support Components 2.3.4 System MemorySupport Component Functions 2.3.7 Universal Serial Bus Interface 2.3.5 Mass Storage2.3.6 Serial Interface 2.3.8 Network Interface Controller 2.3.9 Graphics Subsystem 2.3.10 Audio SubsystemIntegrated Graphics Subsystem Statistics 2.4 Specifications 2.3.11 HP ProtectTools Embedded SecurityEnvironmental Specifications Factory Configuration 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 3.3.1 Memory Upgrading 3.3.2 Memory Mapping and Pre-allocationMemory Socket Loading Figure 3-2. System Memory Map for maximum of 8 gigabytes Expansion AreaBase Memory 4.2 PCI Bus Overview System Support4.1 Introduction 4.2.1 PCI 2.3 Bus Operation System Support PCI Component Configuration AccessWired to PCI Bus Transaction Protocol Layer 4.2.2 PCI Express Bus OperationSoftware/Driver Layer PCI Bus Mastering Devices 4.2.4 PCI Interrupts 4.2.5 PCI Power Management Support4.2.3 Option ROM Mapping Link Layer PCI 2.3 Bus Connector Pinout 4.2.6 PCI ConnectorsPCI 2.3 Connector Figure 4-2. 32-bit, 5.0-volt PCI 2.3 Bus Connector PCIe Connectors PCIe Bus Connector PinoutFigure 4-3. PCIe Bus Connectors 8259 Mode 4.3 System Resources4.3.1 Interrupts APIC Mode 4.3.2 Direct Memory Access PCI Interrupt Distribution 4.4 Real-Time Clock and Configuration Memory 4.4.1 Clearing CMOS 4.5.1 Security Functions 4.5 System Management4.4.2 Standard CMOS Locations Configuration Memory CMOS Map Cable Lock Provision Power-On / Setup PasswordSetup Password I/O Interface Security 4.5.2 Power Management Smart Cover Lock OptionalACPI Wake-Up Events 4.5.3 System Status 4.5.4 Thermal Sensing and CoolingSystem Operational Status LED Indications 4.6 Register Map and Miscellaneous Functions 4.6.1 System I/O Map System I/O Map I/O PortFunction 4.6.2 GPIO Functions ICH10 FunctionsSIO Controller 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 5.4.2 Enhanced Parallel Port Mode 5.4 Parallel Interface Support5.4.1 Standard Parallel Port Mode 5.4.3 Extended Capabilities Port Mode 5.4.4 Parallel Interface Connector DB-25 Parallel Connector Pinoute w q - 9 8 7 6 5 4 3 2 1 g f d s a p o i u y t r 5.5 Keyboard/Pointing Device Interface 5.5.1 Keyboard Interface Operation 5.5.3 Keyboard/Pointing Device Interface Connector 5.5.2 Pointing Device Interface OperationKeyboard/Pointing Device Connector Pinout 5.6.1 USB Connector 5.6 Universal Serial Bus Interface USB Cable Length Data 5.6.2 USB Cable DataUSB Connector Pinout USB Color Code 5.7 Audio Subsystem Figure 5-8. Audio Subsystem Functional Block Diagram 5.7.1 HD Audio Controller 5.7.2 HD Audio Link Bus5.7.3 Audio Multistreaming 5.7.4 Audio Specifications The specifications for the HD Audio subsystem are listed in TableHD Audio Subsystem Specifications 5.8 Network Interface Controller 5.8.3 Power Management Support 5.8.1 Wake-On-LAN Support5.8.2 Alert Standard Format Support 5.8.4 NIC Connector 5.8.5 NIC SpecificationsTable 5-11. NIC Specifications Integrated Graphics Subsystem 6.1 Introduction 6.2 Functional Description SDRAM Installed GMA 4500 Memory AllocationMaximum 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 Power and Signal Distribution 7.2 USDT Power Distribution7.1 Introduction USDT 135-Watt Power Supply Unit Specifications 7.3 SFF/CMT Power DistributionTable 7-1 lists the specifications of the external supply 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 failure power supply is overloaded. Check storage Power LED IndicationsPower LED Pre-video memory error. Incompatible or incorrectly seated Power Management Event 7.5 Power Management7.4.2 Wake Up Events Wake-On-LAN Power System Power StatesPower State Designator 7.6 Signal DistributionSystem Board Connector, Indicator, and Switch Designations Component function Figure 7-5 shows pinouts of headers used on the sytem boards Table 7-7. ContinuedFigure 7-3. System Board Header Pinouts 7-10 System BIOS 8.1 Introduction 8.2 ROM Flashing 8.2.1 Upgrading8.2.2 Changeable Splash Screen 8.3.2 Network Boot F12 Support 8.3 Boot Functions8.3.1 Boot Device Order 8.3.3 Memory Detection and Configuration 8.3.4 Boot Error Codes 8.4 Client Management Functions 8.4.1 System ID and ROM Type 8.4.2 Temperature StatusSystem ID Numbers 8.5 SMBIOS SMBIOS Functions 8.6 USB Legacy Support 8.7 Management Engine Functions Error Messages and Codes A.2 Beep/Power LED CodesA.1 Introduction A.3 Power-On Self Test POST Messages Error Messages and Codes 1794--Inaccessible device attached to SATA Power-On Self Test POST MessagesError Message 1796-SATA Cabling Error 1801-Microcode Patch Error A.4 System Error Messages Error Messages and Codes A.5 Memory Error Messages Memory Error MessagesTable A-4 Table A-4. Continued A.6 Keyboard Error MessagesMemory Error Messages Message Int. test, LpBk. test., and data register failed A.7 Printer Error MessagesA.8 Video Graphics Error Messages 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 EGA Mono. graphics mode test failed A.15 Video Graphics Error MessagesA.16 Audio Error Messages Lightpen graphics test failed, no resp A.17 DVD/CD-ROM Error Messages A.18 Network Interface Error Messages A.19 SCSI Interface Error Messages 65xx-xx, 66xx-xx MessageProbable Cause A.20 Pointing Device Interface Error Messages 8601-xx A-20 Index Numerics