Intel D915GAV, D915GAG, D915GUX manual Desktop Board Resources, DMA Channels, System Memory Map

Page 71

5 Desktop Board Resources

Memory Map

Table 13. System Memory Map

Address Range (decimal)

Address Range (hex)

Size

Description

 

 

 

 

1024 K - 4194304 K

100000 - FFFFFFFF

4095 MB

Extended Memory

 

 

 

 

960 K - 1024 K

F0000 - FFFFF

64 KB

Runtime BIOS

 

 

 

 

896 K - 960 K

E0000 - EFFFF

64 KB

Reserved

 

 

 

 

800 K - 896 K

C8000 - DFFFF

96 KB

Available high DOS memory (open to the

 

 

 

PCI bus)

 

 

 

 

640 K - 800 K

A0000 - C7FFF

160 KB

Video memory and BIOS

 

 

 

 

639 K - 640 K

9FC00 - 9FFFF

1 KB

Extended BIOS data (movable by

 

 

 

memory manager software)

 

 

 

 

512 K - 639 K

80000 - 9FBFF

127 KB

Extended conventional memory

 

 

 

 

0 K - 512 K

00000 - 7FFFF

512 KB

Conventional memory

 

 

 

 

DMA Channels

Table 14. DMA Channels

DMA Channel Number

Data Width

System Resource

 

 

 

0

8 or 16 bits

 

 

 

 

1

8 or 16 bits

Parallel port

 

 

 

2

8 or 16 bits

Floppy drive

 

 

 

3

8 or 16 bits

Parallel port (for ECP or EPP)

 

 

 

4

8 or 16 bits

DMA controller

 

 

 

5

16 bits

Open

 

 

 

6

16 bits

Open

 

 

 

7

16 bits

Open

 

 

 

71

Image 71
Contents Product Guide Intel Desktop Board D915GEV/D915GUXCanadian Department of Communications Compliance Statement Revision HistoryRevision Revision History Date FCC Declaration of ConformityConventions PrefaceIntended Audience Information LayoutTerminology Box ContentsContents Bios Regulatory Compliance ContentsTables Feature Summary Desktop Board FeaturesSecurity Optional Peripheral InterfacesManufacturing Options Desktop Board FeaturesManufacturing Options Supported Operating SystemsDesktop Boards D915GAV and D915GEV Components Desktop Board ComponentsLabel Description Intel Desktop Boards D915GUX and D915GAG Components Desktop Boards D915GAG and D915GUX Components D915GAV/D915GAGProcessor Main Memory Desktop Board D915GAV/D915GAG Memory ConfigurationsIntel 915G Express Chipset Desktop Board D915GEV/D915GUX Memory ConfigurationsAudio Subsystem Graphics SubsystemLAN Subsystem Software RJ-45 LAN Connector LEDsInput/Output I/O Controller LAN Subsystem OptionalLED Color LED State Indicates RJ-45 10/100 Ethernet LAN Connector LEDsRJ-45 10/100/1000 Gigabit Ethernet LAN Connector LEDs Hi-Speed USB 2.0 SupportExpandability Serial ATA and IDE Auto ConfigurationEnhanced IDE Interface Serial ATAChassis Intrusion Power Management FeaturesPCI and PCI Express Auto Configuration Security PasswordsSuspend to RAM Instantly Available PC Technology Power ConnectorsFan Connectors Fan Speed Control Intel Precision Cooling TechnologyResume on Ring Location of Standby Power IndicatorReal-Time Clock BatterySpeaker Before You Begin Installing and Replacing Desktop Board ComponentsEnsure Electromagnetic Compatibility EMC Compliance Installation PrecautionsInstallation Instructions Chassis and Component Certifications Prevent Power Supply OverloadPlace Battery Marking Installing and Replacing Desktop Board ComponentsUse Only for Intended Applications Installing the I/O ShieldRefer to Appendix B for regulatory requirements Installing and Removing the Desktop BoardInstalling a Processor Installing and Removing a ProcessorRemove the Protective Socket Cover Install Processor Installing the Processor Fan Heat SinkRemoving the Processor Connecting the Processor Fan Heat Sink CableGuidelines for Dual Channel Memory Configuration Installing and Removing Memory256 MB, 400 MHz 512 MB, 400 MHzMatching the Correct Dimm Installing DIMMsInstalling a Dimm Removing DIMMs Removing the PCI Express x16 Card Installing and Removing a PCI Express x16 CardInstalling a PCI Express x16 Card Connecting the IDE Cable Connecting the IDE CableConnecting the Serial ATA Cable Connecting the Serial ATA Sata CableInternal Headers Connecting Internal HeadersPin Signal Name Installing a Front Panel Audio SolutionFront Panel Audio Header Signal Names Front Panel Header Signal Names Connecting USB 2.0 HeadersConnecting the Front Panel Header USB 2.0 Header Signal NamesItem Description Multi-Channel Analog AudioConnecting Fan Cables Connecting Fan and Power CablesConnecting 2x10 Power Supply Cables Connecting Power Cables2X12 PCI Bus Add-In Card Connectors Jumper Setting Mode Description Setting the Bios Configuration Jumper BlockJumper Settings for the Bios Setup Program Modes Clearing Passwords Back Panel Connectors Back Panel ConnectorsPrécaution Replacing the BatteryAvvertimento Awas Oсторога Bios Updating the Bios Updating the Bios with the Iflash Memory Update UtilityObtaining the Bios Update File Recovering the Bios Page System Requirements Trusted Platform Module OptionalPassword Procedures Security PrecautionsTrusted Platform Module Emergency Recovery File Back Up ProceduresHard Drive Image Backup Procedures Clear Text Backup OptionalAssuming Trusted Platform Module Ownership Trusted Platform Module OwnershipEnabling the Trusted Platform Module How to Recover from Desktop Board or TPM Failure Recovery ProceduresHow to Recover from Hard Disk Failure Requirements Software Support Clearing Trusted Platform Module OwnershipPage System Memory Map Desktop Board ResourcesMemory Map DMA ChannelsInterrupts InterruptsNumber of Beeps Description Error Messages and IndicatorsBios Beep Codes Beep CodesError Message Explanation Bios Error MessagesBios Error Messages Nvram / Cmos / Password Error Messages and IndicatorsPage European Union Declaration of Conformity Statement Safety RegulationsSafety Regulations Regulatory ComplianceRecycling Considerations Product Ecology StatementsDisposal Considerations Regulatory Compliance EMC RegulationsEMC Regulations Product Certification Markings Product Certification Markings Board Level

D915GAV, D915GEV, D915GUX, D915GAG specifications

The Intel D915GAG, D915GUX, D915GEV, and D915GAV are part of Intel's 915 chipset series, which was introduced to enhance the performance and capabilities of desktop computers in the mid-2000s. These motherboards provided users with a balanced combination of features suitable for both general computing and gaming needs.

The D915GAG motherboard features support for Intel Pentium 4 processors with the LGA 775 socket, providing robust performance for a range of applications. It supports a maximum of 4 GB of DDR2 RAM, ensuring that users can run multiple applications smoothly. The chipset supports a front-side bus speed of up to 800 MHz, facilitating quick data transfer rates that enhance overall system responsiveness.

The D915GUX variant is known for its enhanced graphics capabilities, featuring Intel Graphics Media Accelerator 900 integrated graphics. This component provides a decent visual experience for casual gaming and multimedia tasks without the need for a dedicated graphics card. The board also includes PCI Express x16 slots, enabling expansion for those who require higher graphical performance.

The D915GEV model stands out for its extensive connectivity options. It comes equipped with multiple USB 2.0 ports, SATA interfaces for faster data storage solutions, and built-in Ethernet to facilitate internet connectivity. The D915GEV is designed with stability and reliability in mind, making it suitable for use in both personal and professional environments.

Lastly, the D915GAV offers an alternative for users seeking a reliable and cost-effective chipset. It supports Intel’s SpeedStep technology, which dynamically adjusts processor voltage and frequency according to workload, optimizing energy consumption. This model emphasizes user-friendly performance, making it a practical choice for home users and small businesses alike.

All models support Intel Quiet System Technology, reducing fans' noise levels and maintaining an efficient cooling environment, which is essential for long-term reliability. Collectively, the Intel D915 series motherboards emphasize versatility, solid performance, and expanded connectivity options, making them a worthy choice for various computing needs during their time.