Intel D925XBC, D925XCV Instantly Available PC Technology, Resume on Ring, Wake from USB

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Product Description

Depending on the LAN implementation, the Desktop Boards D925XCV and D925XBC support LAN wake capabilities with ACPI in the following ways:

•The PCI Express WAKE# signal

•The PCI Conventional bus PME# signal for PCI 2.2 compliant LAN designs

•The onboard LAN subsystem

1.14.2.4Instantly Available PC Technology

CAUTION

For Instantly Available PC technology, the +5 V standby line for the power supply must be capable of providing adequate +5 V standby current. Failure to provide adequate standby current when implementing Instantly Available PC technology can damage the power supply.

Instantly Available PC technology enables the Desktop Boards D925XCV and D925XBC to enter the ACPI S3 (Suspend-to-RAM) sleep-state. While in the S3 sleep-state, the computer will appear to be off (the power supply is off, and the front panel LED is amber if dual colored, or off if single colored.) When signaled by a wake-up device or event, the system quickly returns to its last known wake state. Table 10 on page 43 lists the devices and events that can wake the computer from the S3 state.

The Desktop Boards D925XCV and D925XBC support the PCI Bus Power Management Interface Specification. Add-in boards that also support this specification can participate in power management and can be used to wake the computer.

The use of Instantly Available PC technology requires operating system support and PCI 2.2 compliant add-in cards, PCI Express add-in cards, and drivers.

1.14.2.5Resume on Ring

The operation of Resume on Ring can be summarized as follows:

•Resumes operation from ACPI S1 or S3 states

•Detects incoming call similarly for external and internal modems

•Requires modem interrupt be unmasked for correct operation

1.14.2.6Wake from USB

USB bus activity wakes the computer from ACPI S1 or S3 states.

✏NOTE

Wake from USB requires the use of a USB peripheral that supports Wake from USB.

1.14.2.7Wake from PS/2 Devices

PS/2 device activity wakes the computer from an ACPI S1 or S3 state.

1.14.2.8PME# Signal Wake-up Support

When the PME# signal on the PCI Conventional bus is asserted, the computer wakes from an ACPI S1, S3, S4, or S5 state (with Wake on PME enabled in BIOS).

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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 DiagramOnline Support For information about Refer to Power supply connectors 1.1,Processor To find information about… Visit this World Wide Web siteSystem 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 Configurations1 USB Intel 925X ChipsetIDE Support Parallel ATE IDE InterfaceSerial ATA Interfaces Scsi Hard Drive Activity LED Connector Optional RAID Boot Configuration OverviewSerial ATA RAID Product Description For information about Refer toPCI 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 Fan Monitoring Power ManagementChassis Intrusion and Detection AcpiEffects 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 Instantly Available PC Technology 14.2.8 PME# Signal Wake-up SupportResume on Ring Wake from USB14.2.10 +5 V Standby Power Indicator LED WAKE# Signal Wake-up SupportSystem Requirements Trusted Platform Module OptionalPassword Procedures Security PrecautionsHard Drive Image Backup Procedures Emergency Recovery File Back Up ProceduresClear Text Backup Optional Trusted Platform Module OwnershipAssuming 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 Memory Map DMA ChannelsSystem Memory Map DMA ChannelsFixed 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 Front Panel Audio Connector Atapi CD-ROM ConnectorFront Chassis Fan and Rear Chassis Fan Connectors Processor Fan Connector and Auxiliary Rear Fan ConnectorScsi Hard Drive Activity LED Connector Optional Chassis Intrusion ConnectorSerial ATA Connectors Auxiliary Power Output ConnectorPower Supply Connectors Main Power Connector Add-in Card ConnectorsATX12V Power Connector Alternate Power ConnectorFront Panel Connector Auxiliary Front Panel Power/Sleep LED ConnectorAuxiliary Front Panel Power/Sleep LED Connector Front Panel 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 Current at Mode DC Power +3.3 +12 +5 VSB DC Loading CharacteristicsElectrical Considerations DC LoadingPower Supply Considerations Fan Connector Current CapabilityFan Connector Current Capability Fan Connector Maximum Available CurrentProcessor Heatsink for Omni-directional Airflow Thermal ConsiderationsShows the locations of the localized high temperature zones Component Maximum Case Temperature ReliabilityThermal Considerations for Components Parameter Specification Temperature Desktop Board D925XCV/D925XBC Environmental SpecificationsEnvironmental ShockSafety Regulations Safety RegulationsRegulatory Compliance EMC RegulationsEuropean 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 Resource Configuration Bios Flash Memory OrganizationPCI Autoconfiguration PCI IDE SupportSystem Management Bios Smbios Overview of Bios FeaturesLegacy USB Support Language Support Bios UpdatesCustom Splash Screen For information about Refer to Intel World Wide Web siteCD-ROM Boot Boot OptionsNetwork Boot Booting Without Attached DevicesFast 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 Error Messages and Beep Codes Boot Block Recovery Code CheckpointsPort 80h Post Codes Uncompressed Init Code CheckpointsRuntime Code Uncompressed in F000 Shadow RAM To prepare the descriptor tables Password checked. About to do programming before setup Bus Initialization Checkpoints Bus Initialization CheckpointsUpper Nibble High Byte Functions Checkpoint DescriptionBios 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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