Intel D925XBC, D925XCV specifications Back Panel Connectors

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Technical Reference

2.8 Connectors

CAUTION

Only the following connectors have overcurrent protection: back panel USB, front panel USB, and PS/2.

The other internal connectors are not overcurrent protected and should connect only to devices inside the computer’s chassis, such as fans and internal peripherals. Do not use these connectors to power devices external to the computer’s chassis. A fault in the load presented by the external devices could cause damage to the computer, the power cable, and the external devices themselves.

This section describes the board’s connectors. The connectors can be divided into these groups:

•Back panel I/O connectors

•Component-side I/O connectors (see page 68)

✏NOTE

When installing the D925XBC board in a microATX chassis, make sure that peripheral devices are installed at least 1.5 inches above the main power connector, the diskette drive connector, the Parallel ATA IDE connector, and the DIMM sockets.

2.8.1Back Panel Connectors

The back panel configuration is dependent upon which audio subsystem is present. The configurations are as follows:

•8-channel (7.1) audio subsystem (five analog audio output connectors and two digital audio output connectors), described on page 64

•6-channel (5.1) audio subsystem (three analog audio output connectors), described on page 66

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Contents D925XCV/D925XBC Revision Revision History Date Revision HistoryPreface Other Common Notation Contents Technical Reference Contents Overview of Bios FeaturesFigures Chassis Intrusion Connector Page PCI Bus Terminology Change Board DifferencesSummary of Board Differences Feature Summary Feature SummaryOverview Manufacturing Options Manufacturing OptionsDesktop Board D925XCV Components Board LayoutsItem/callout from Figure Description D925XCV Components Shown in FigureDesktop Board D925XBC Components D925XBC Components Shown in Figure Block Diagram Block DiagramTo find information about… Visit this World Wide Web site For information about Refer to Power supply connectors 1.1,Online Support ProcessorSystem Memory Supported Memory ConfigurationsMemory Channel and Dimm Configuration Memory ConfigurationsDual Channel Interleaved Mode Configuration with Two DIMMs Dual Channel Interleaved Mode ConfigurationsDual Channel Interleaved Mode Configuration with Four DIMMs Single Channel Asymmetric Mode Configuration with One Dimm Single Channel Asymmetric Mode ConfigurationsParallel ATE IDE Interface Intel 925X Chipset1 USB IDE SupportSerial ATA Interfaces Product Description For information about Refer to RAID Boot Configuration OverviewScsi Hard Drive Activity LED Connector Optional Serial ATA RAIDPCI Express Connectors Auxiliary Power AUX PWR Output ConnectorReal-Time Clock, Cmos SRAM, and Battery 10 I/O Controller Serial PortParallel Port Keyboard and Mouse Interface Diskette Drive ControllerAudio Connectors Audio SubsystemAudio Subsystem Software 11.3 8-Channel 7.1 Audio Subsystem Back Panel Audio ConnectorsIs a block diagram of the 8-channel 7.1 audio subsystem 11.4 6-Channel 5.1 Audio Subsystem Channel 5.1 Audio Subsystem Block Diagram12.2 RJ-45 LAN Connector with Integrated LEDs LAN SubsystemColor LED State Condition LAN Subsystem Software Alert Standard Format ASF SupportHardware Monitoring and Fan Control Asic Hardware Management SubsystemThermal Monitoring for D925XCV Board Thermal MonitoringThermal Monitoring for D925XBC Board Acpi Power ManagementFan Monitoring Chassis Intrusion and DetectionEffects of Pressing the Power Switch System States and Power StatesPower States and Targeted System Power Hardware Support Wake-up Devices and EventsWake-up Devices and Events Power Connector Fan ConnectorsLAN Wake Capabilities Wake from USB 14.2.8 PME# Signal Wake-up SupportInstantly Available PC Technology Resume on Ring14.2.10 +5 V Standby Power Indicator LED WAKE# Signal Wake-up SupportSystem Requirements Trusted Platform Module OptionalPassword Procedures Security PrecautionsTrusted Platform Module Ownership Emergency Recovery File Back Up ProceduresHard Drive Image Backup Procedures Clear Text Backup OptionalAssuming Trusted Platform Module Ownership Enabling the Trusted Platform ModuleRecovery Procedures Recovering from Hard Disk FailureRecovering from Desktop Board or TPM Failure Clearing Trusted Platform Module Ownership Software Support Page Introduction Memory ResourcesAddressable Memory Detailed System Memory Address Map DMA Channels DMA ChannelsMemory Map System Memory MapFixed I/O Map O MapAddress hex Size Description PCI Configuration Space Map PCI Configuration Space MapBus Device Function Number hex Description Interrupts InterruptsPCI Conventional Interrupt Routing Map PCI Interrupt Routing Map ICH6-R Pirq Signal Name PCI Interrupt SourceBack Panel Connectors ConnectorsBack Panel Connectors for 8-Channel 7.1 Audio Subsystem Back Panel Connectors For 8-Channel 7.1 Audio SubsystemItem/callout from Description Back Panel Connectors Shown in FigureBack Panel Connectors for 6-Channel 5.1 Audio Subsystem Back Panel Connectors For 6-Channel 5.1 Audio SubsystemBack Panel Connectors Shown in Figure D925XCV Component-side Connectors Component-side ConnectorsD925XCV Component-side Connectors Shown in Figure D925XBC Component-side Connectors D925XBC Component-side Connectors Shown in Figure Processor Fan Connector and Auxiliary Rear Fan Connector Atapi CD-ROM ConnectorFront Panel Audio Connector Front Chassis Fan and Rear Chassis Fan ConnectorsAuxiliary Power Output Connector Chassis Intrusion ConnectorScsi Hard Drive Activity LED Connector Optional Serial ATA ConnectorsPower Supply Connectors Alternate Power Connector Add-in Card ConnectorsMain Power Connector ATX12V Power ConnectorFront Panel Connector Auxiliary Front Panel Power/Sleep LED ConnectorFront Panel Connector Auxiliary Front Panel Power/Sleep LED ConnectorStates for a One-Color Power LED States for a Two-Color Power LEDLED State Description Connection Diagram for Front Panel USB Connectors Front Panel USB ConnectorsConnection Diagram for Ieee 1394a Connectors Front Panel Ieee 1394a Connectors OptionalJumper Block Function/Mode Jumper Setting Configuration10.1 D925XCV Form Factor Mechanical Considerations10.2 D925XBC Form Factor Desktop Board D925XBC Dimensions10.3 I/O Shield 039 11.811 465 14.4 12.00 567 472 DC Loading DC Loading CharacteristicsDC Current at Mode DC Power +3.3 +12 +5 VSB Electrical ConsiderationsFan Connector Maximum Available Current Fan Connector Current CapabilityPower Supply Considerations Fan Connector Current CapabilityProcessor Heatsink for Omni-directional Airflow Thermal ConsiderationsShows the locations of the localized high temperature zones Component Maximum Case Temperature ReliabilityThermal Considerations for Components Shock Desktop Board D925XCV/D925XBC Environmental SpecificationsParameter Specification Temperature EnvironmentalEMC Regulations Safety RegulationsSafety Regulations Regulatory ComplianceEuropean Union Declaration of Conformity Statement FCC Compliance Statement USACanadian Compliance Statement Product Ecology Statements Disposal ConsiderationsRecycling Considerations Product Certification Markings Board Level Product Certification MarkingsDescription Marking Overview of Bios Features PCI IDE Support Bios Flash Memory OrganizationResource Configuration PCI AutoconfigurationSystem Management Bios Smbios Overview of Bios FeaturesLegacy USB Support For information about Refer to Intel World Wide Web site Bios UpdatesLanguage Support Custom Splash ScreenBooting Without Attached Devices Boot OptionsCD-ROM Boot Network BootFast Booting Systems with Intel Rapid Bios Boot Peripheral Selection and ConfigurationIntel Rapid Bios Boot Supervisor and User Password Functions Bios Security Features102 Bios Error Messages Bios Error MessagesError Message Explanation Removed then memory may be bad Uncompressed Init Code Checkpoints Boot Block Recovery Code CheckpointsError Messages and Beep Codes Port 80h Post CodesRuntime Code Uncompressed in F000 Shadow RAM To prepare the descriptor tables Password checked. About to do programming before setup Checkpoint Description Bus Initialization CheckpointsBus Initialization Checkpoints Upper Nibble High Byte FunctionsBios Beep Codes SpeakerLower Nibble High Byte Functions Beep Description Beep Codes112

D925XBC, D925XCV specifications

The Intel D925XBC and D925XCV are motherboards designed for Intel's LGA 775 socket, targeted primarily at the desktop market during the mid-2000s. These motherboards support Intel's innovative 800 MHz Front Side Bus and provide a robust platform for various computing applications, including gaming and multitasking.

One of the standout features of the D925XBC and D925XCV is their compatibility with Intel's Pentium 4 and Pentium D dual-core processors. These processors deliver impressive performance, especially for users engaging in demanding tasks such as video editing and 3D rendering. The support for dual-channel DDR2 memory allows for increased bandwidth and improved overall system performance, accommodating up to 8 GB of memory in total.

The motherboards are equipped with the Intel 925X chipset, which integrates advanced technologies. This chipset supports Intel's Enhanced Memory 64 Technology (EM64T), allowing for more efficient processing power and better resource management. The presence of the I/O Controller Hub (ICH6) also enhances connectivity options, including SATA 3.0 Gbps interfaces for faster data transfer rates and improved storage capabilities.

Regarding expansion and connectivity, both motherboards feature multiple PCI Express slots along with PCI slots, allowing users to customize their systems according to their needs. This expandability is essential for gamers and professionals looking to add advanced graphics cards and other peripherals. Additionally, these boards come with integrated audio, ensuring satisfactory sound quality without the need for additional sound cards.

The D925XBC and D925XCV motherboards also include integrated Ethernet controllers, supporting fast network connectivity essential for gaming and high-speed internet access. With multiple USB ports available, users can connect a wide variety of devices easily, enhancing the flexibility of their setups.

In terms of form factor, both boards follow the ATX layout, providing compatibility with a broad range of computer cases. This ensures ease of installation and upgrades while promoting good airflow and optimal thermal management for the components installed.

Overall, the Intel D925XBC and D925XCV motherboards integrate essential features and technologies that provide a solid foundation for desktop computing during their time. With strong processing capabilities, expandability, and good connectivity options, these boards were well-received by users looking for reliable performance and versatility in their systems.
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