Intel D845HV Input/Output I/O Controller, Real-Time Clock, Intel 82801BA I/O Controller Hub ICH2

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Desktop Board Features

Intel® 82801BA I/O Controller Hub (ICH2)

The Intel 82801BA I/O Controller Hub integrates many I/O functions and provides the I/O subsystem with access to the rest of the platform. ICH2 features on D845HV and D845WN boards includes:

Integrated IDE controller supports two Ultra DMA-33 and ATA-66/100 channels, BMIDE and PIO modes

SMBus interface

FWH interface

Low Pin Count (LPC) interface

AC’97 2.1 compliant link for audio and telephony CODECs

Integrated Intel 82562ET 10/100 Mbit/sec Platform LAN Connect (PLC) device for interfacing the ICH2 LAN connect interface to LAN connect component

Two UHCI USB 1.1 compliant host controllers with four ports (additional ports are provided by the I/O controller)

Firmware Hub (FWH)

The 4 Mbit Firmware Hub has these features:

System BIOS

System security and management logic

Input/Output (I/O) Controller

The SMSC LPC47M142 ultra I/O controller features the following:

Low pin count (LPC) interface

3.3 V operation

Two serial ports (one via a board connector)

One parallel port with Extended Capabilities Port (ECP) and Enhanced Parallel Port (EPP) support

Serial IRQ interface compatible with serialized IRQ support for PCI systems

PS/2-style mouse and keyboard interfaces

Interface for one 1.2 MB, 1.44 MB, or 2.88 MB diskette drive

Intelligent power management, including a programmable wake up event interface

PCI power management support

Two fan tachometer inputs

Real-Time Clock

The desktop boards have a time-of-day clock and 100-year calendar. A battery on the desktop board keeps the clock current when the computer is turned off.

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Contents Intel Desktop Boards D845HV and D845WN Product Guide Revision Revision History Revision HistoryFCC Declaration of Conformity Date Canadian Department of Communications Compliance StatementContents Intel Desktop Boards D845HV and D845WN Product Guide Updating the BiosTechnical Reference ContentsTables Feature Summary Desktop Board FeaturesDesktop Board Features Management Features Instantly Available PC Other Features Power ManagementExpansion Capabilities D845HV Board Components ComponentsD845WN Board Components Main Memory ProcessorProcessors Supported by the Desktop Board Type Designation System Bus FrequencyIntel 82845 Memory Controller Hub MCH Intel 845 ChipsetReal-Time Clock Input/Output I/O ControllerIntel 82801BA I/O Controller Hub ICH2 Firmware Hub FWHPCI Enhanced IDE Interface USB SupportExpansion Slots Audio Subsystem PCI Auto ConfigurationAccelerated Graphics Port AGP Communication and Networking Riser CNR OptionalSecurity Passwords IDE Auto ConfigurationLAN Subsystem Optional LAN Subsystem SoftwarePower Management Features BatteryRJ-45 LAN Connector LEDs RJ-45 LAN Connector LEDsInstantly Available Technology Resume on RingInstantly Available Current Support Standby Current RequirementsDescription Standby Current Requirements mAIntel Desktop Boards D845HV and D845WN Product Guide Before You Begin Installing and Replacing Desktop Board ComponentsInstalling the I/O Shield Installing the I/O ShieldInstalling and Replacing Desktop Board Components Installing and Removing the Desktop BoardD845WN Board Mounting Holes Processor Fan Heatsink RM Mounting Holes Installing and Removing a ProcessorInstalling the Processor Fan Heatsink RM Base to the Board Installing the Processor Fan Heatsink Installing a ProcessorRemoving a Processor Connecting the Processor Fan Heatsink CableDimm Installation Guidelines Installing and Removing MemoryInstalling DIMMs Installing a Memory Module Removing DIMMs AGP Card with Retention Notch Installing the AGP Card Retention MechanismPosition the RM over the AGP connector as shown below Removing the AGP Card from the Retention Mechanism Installing an AGP CardRemoving the AGP Card Retention Mechanism Removing the AGP Card Retention MechanismConnecting the IDE Cable Connecting the IDE CableJumper Settings for the Bios Setup Program Modes J9G1 Setting the Bios Configuration Jumper BlockFunction / Mode Jumper SettingClearing Passwords Precaution Replacing the BatteryVorsicht Removing the Battery Intel Desktop Boards D845HV and D845WN Product Guide Updating the Bios with the Intel Express Bios Update Utility Updating the BiosUpdating the Bios Obtaining the Bios Update FileUpdating the Bios Recovering the BiosIntel Desktop Boards D845HV and D845WN Product Guide Bios Setup Program Menu Bar Using the Setup ProgramBios Setup Program Function Keys Maintenance MenuMaintenance Menu Extended Configuration Submenu Extended Configuration SubmenuUsing the Setup Program UC defaultEnglish default FeatureDisabled default Main MenuAdvanced Menu Advanced MenuPCI Configuration Submenu PCI Configuration SubmenuOptions Auto default Boot Configuration Submenu Boot Configuration SubmenuOptions No default On default DescriptionPeripheral Configuration Submenu Peripheral Configuration SubmenuDefault Bi-directional defaultIRQ 7 default Default Enabled defaultIDE Configuration Submenu IDE Configuration SubmenuBoth default Disabled default Primary/Secondary IDE Master/Slave Submenus Sectors default Auto default DescriptionPrimary/Secondary IDE Master/Slave Submenus Diskette Configuration Submenu Diskette Configuration SubmenuOptions Disabled default 44/1.25 MB 3½ defaultEvent Log Configuration Submenu Event Log Configuration SubmenuEnabled default Yes default Description Video Configuration Submenu Video Configuration SubmenuOptions AGP default Full default If no password entered previously FeatureSecurity Menu Security MenuPower Menu Power MenuAcpi Submenu Acpi SubmenuBoot Menu Boot MenuEnabled default Disabled default Boot Device Priority Submenu Boot Device Priority SubmenuOptions DescriptionRemovable Devices Submenu Hard Disk Drives SubmenuHard Disk Drives Submenu Removable Devices SubmenuAtapi CD-ROM Drives Exit MenuAtapi CD-ROM Drives Submenu Exit MenuTechnical Reference Board ConnectorsDescription Color Back Panel ConnectorsTechnical Reference Midboard ConnectorsPower and Hardware Connectors Add-In Card and Peripheral Interface Connectors D845WN Board Add-in Card and Peripheral Interface Connectors Front Panel Connectors Front Panel ConnectorsMemory Map Desktop Board ResourcesDMA Channels System Memory MapO Map MapAddress hex Technical Reference DescriptionICH2 Acpi + TCO Interrupts InterruptsIntel Desktop Boards D845HV and D845WN Product Guide Bios Beep Codes Error Messages and IndicatorsBeep Codes Number of Beeps DescriptionBios Error Messages Bios Error MessagesError Message ExplanationError Messages and Indicators Intel Desktop Boards D845HV and D845WN Product Guide Safety Regulations Safety RegulationsRegulatory Compliance EMC RegulationsProduct Certification Markings Installation Instructions Installation PrecautionsRegulatory Compliance Ensure Electromagnetic Compatibility EMC Compliance Prevent Power Supply OverloadChassis and Component Certifications Use Only for Intended Applications Place Battery Marking
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D845HV, D845WN specifications

The Intel D845WN and D845HV motherboards have garnered attention for their robust features and reliability, making them suitable choices for a range of computing needs. Both motherboards belong to Intel’s 845 chipset family, which was designed to support the Pentium 4 processors, providing a foundation for both performance and value.

The Intel D845WN motherboard is recognized for its standard ATX form factor, which allows for versatility in case selection and expands the options for build configurations. It supports the Pentium 4 processors with a socket 478 interface, accommodating speeds of 1.3 GHz to 3.0 GHz. This motherboard is equipped with a front-side bus (FSB) speed of 400/533 MHz, ensuring fast data transfer rates between the processor and other components.

On the memory side, the D845WN supports up to 2 GB of DDR SDRAM, making it compatible with a range of memory options for efficient multitasking and improved performance. It features two memory slots for Dual Channel DDR support, enhancing memory bandwidth. The onboard graphics capabilities are powered by Intel's integrated graphics, making the D845WN capable of basic graphical tasks without requiring a dedicated graphics card, ideal for general computing or light gaming.

In contrast, the D845HV model shares many similarities with the D845WN but emphasizes additional features that cater to more advanced users. It includes support for Intel's RAID technology, allowing users to set up mirrored or striped disk configurations for improved data redundancy and performance. Furthermore, the D845HV motherboard comes with more extensive expansion slots, including additional PCI and an AGP slot for dedicated graphics cards, enhancing its overall upgradeability.

Both motherboards include integrated audio capabilities courtesy of Intel’s AC'97 Audio technology, ensuring satisfactory sound output for everyday multimedia use. Networking is facilitated through integrated Ethernet support, enabling reliable internet connectivity without needing additional network cards.

In terms of expansion and connectivity, both models feature USB ports, allowing users to connect multiple peripherals effortlessly. The combination of legacy and contemporary interfaces on the D845WN and D845HV ensures compatibility with a wide range of devices and peripherals.

In summary, the Intel D845WN and D845HV motherboards epitomize value-driven performance, offering essential features that cater to a variety of users, from casual computer users to more demanding applications. With their solid build quality and Intel's backing, these motherboards continue to be appreciated even in today's evolving computing landscape.