Contents
For technical support, contact your place of purchase which will have the most current information about your specific product or configuration. For general product information see the Intel® Desktop Board site.

• Technical FAQ
• Marketing FAQ

• What processor does the Intel® Desktop Board D845HV support?
• How do I install and secure a processor on the Intel Desktop Board D845HV?
• How many expansion slots does the Intel Desktop Board D845HV contain?
• Does the Intel Desktop Board D845HV support STR (Suspend to RAM)?

• What memory configurations are supported on the Intel Desktop Board D845HV?
• What kind of problems might occur in a PC-133 SDRAM-based system that uses PC-133 non-compliant DIMMs?
• I get a repeating-beep error code and my desktop board does not boot or show any video. What does this mean?

• What kind of power supply do I need for the Intel Desktop Board D845HV?
• Do I need a special power supply to support Instantly Available PC (Suspend-to-RAM)? How much +5V standby current does the power supply need to support it?

• How should the jumpers be set on my Intel Desktop Board D845HV?

• What add-in AGP cards can be used?
• Can I use the AGP card retention mechanism with any AGP card?
• How do I designate an add-in PCI video adapter as my primary video adapter?

• What audio solution is available on the Intel Desktop Board D845HV?
• How can the on-board audio be disabled?

• Does the Intel Desktop Board D845HV support Ultra ATA/66, as well as, ATA/100 hard drives?
• What is Intel® Application Accelerator?
• Should I use Intel® Storage Drivers or Intel Application Accelerator?
• Should I upgrade from ISD to IAA?
• What is the performance difference (IAA and ISD)?
• Will IAA improve my SCSI performance?
• Is IAA compatible with Intel® Active Monitor (IAM)?
• What type of battery is used in the Intel Desktop Board D845HV?
• How do I disable the onboard LAN?
• Why doesn't my Intel Desktop Board D845HV power-up?
• Why are the drivers on Intel's public Web site revisions of those available on some vendor public Web sites?
• How many serial ports does the Intel Desktop Board D845HV support?
• Why isn't my IDE device displayed during power-up POST?
• Can I use a second floppy disk drive on my Intel Desktop Board D845HV?

Marketing Questions

• What features are incorporated into the Intel Desktop Board D845HV?
• What is Intel® Active Monitor and how does it work?

• Does Intel qualify memory for use on Intel desktop boards?

• What is Instantly Available PC?
• What is a wake device?

• What is AC'97 and what does it do?
• Why is SoundMAX* with SPX (SoundMAX* 3.0) superior to other integrated audio solutions?

• What is the Communications and Networking Riser (CNR)?

• What kind of Power Supply is needed for the Intel Desktop Board D845HV?

Technical FAQ

General Questions:

• What processor does the Intel® Desktop Board D845HV support?
  The Intel Desktop Board D845HV supports the Intel Pentium® 4 Processor in 478 Pin micro Grid Array (mPGA) Package. See the Processor Support Table for details.

• How do I install and secure a processor on the Desktop Board D845HV?
  The processor connects to the Intel Desktop Board D845HV through the mPGA478 pin socket connector. Make sure you use an adequate heat sink solution such as that provided with the Branded Intel® Pentium® 4 Processor.

• How many expansion slots does the Desktop Board D845HV contain?
  The Intel Desktop Board D845HV has one AGP connector and three PCI connectors. A single Communication and Networking Riser (CNR) connector is optional and if present shares space with PCI slot 3. All PCI expansion slots support bus-mastering devices.

• Does the Intel Desktop Board D845HV support STR (Suspend to RAM)?
  The Intel Desktop Board D845HV supports STR when used with STR capable: Operating system, add-in card(s), driver(s), and application(s). Operating systems, add-in cards, drivers, and applications that do not support STR can cause problems when coming out of different sleep states.

• What memory configurations are supported on the Intel® Desktop Board D845HV?
  The Intel Desktop Board D845HV supports only PC133 SDRAM Memory. There are three DIMM sockets supporting up to three 168-pin SDRAM DIMMs with gold-plated contacts. The Desktop Board D845HV is designed to support a memory range of 32 MB minimum (using 64Mbit technology) up to 3 GB maximum** (using 512-Mbit technology). The Desktop Board D845HV can support ECC or non-ECC DIMMs. Refer to the D845HV Technical Product Specification (TPS) for more details.
  
  Alternate configurations of the Desktop Board D845HV have two DIMM sockets that are designed to support a maximum of 2 GB of memory.

• What kind of problems might occur in a PC-133 SDRAM-based system that uses PC-133 non-compliant DIMMs?
  The most extreme example of memory failure is when the system hangs while booting the operating system. This can happen when the system is unable to communicate properly with the memory. In less extreme cases, the memory may generate intermittent errors or fail during stress.

• I get a repeating-beep error code and my desktop board does not boot or show any video. What does this mean?
  This beep code may indicate a problem during detection of the SDRAM memory device. Check to ensure that the system memory DIMMs are properly installed and that the DIMMs are on the Intel Desktop Board D845HV tested-memory list.

• How should the jumpers be set on my Intel® Desktop Board D845HV?
  A single configuration jumper (J9G1) on the desktop board is used to access configuration mode. All configuration options are made available through the BIOS configuration screens. Refer to the Desktop Board D845HV Configuration Jumpers page in the D845HV Technical Product Specification (TPS).

• What add-in AGP cards can be used?
  The D845HV AGP socket can be used with AGP cards that comply with the AGP 2.0 specification. The Intel Desktop Board D845HV can only accept 4X card(s) operating at 1.5V.
  
  

  Note Legacy 3.3V AGP cards are not supported.

• Can I use the AGP card retention mechanism with any AGP card?
  The AGP retention mechanism is made for use with AGP cards that meet the AGP 2.0 specification. These cards have a special slot at the back of the card that interlocks with a small plastic stud on the retention mechanism. Cards that do not meet the AGP 2.0 specification should not be used with the retention mechanism, because the small plastic stud may interfere with correct installation and retention of the card.

• How do I designate an add-in PCI video adapter as my primary video adapter?
  The primary video adapter can be changed from the onboard AGP to an add-in PCI adapter through the desktop board BIOS Setup utility. The setting is located in the Advanced screen under Video Configuration.

• What audio solution is available on the Intel® Desktop Board D845HV?
  The Intel Desktop Board D845HV offers integrated soft audio that uses a portion of the Intel® 82801BA I/O Controller Hub 2 (ICH2) with an Analog Devices* AD1885 analog codec to create the basic audio subsystem.

• How can the on-board audio be disabled?
  The on-board audio can be disabled using the BIOS Setup Utility. Select the advanced menu, then the Peripheral Configuration screen. The menu offers options to enable or disable the audio if it is present on the desktop board. Refer to the Intel Desktop Board D845HV Technical Product Specification (TPS) for more details.

• Does the Intel® Desktop Board D845HV support Ultra ATA/66, as well as, ATA/100 hard drives?
  Yes. One of the new features of the Intel Desktop Board D845HV is its ability to support all Ultra ATA transfer rates (i.e., 33 MB/sec, 66 MB/sec and 100 MB/sec). To realize a true throughput performance difference, a hard drive may need to implement higher spindle speeds, such as 7200 RPM, and a large onboard buffer size to take advantage of the increased bandwidth available on the IDE channel. Refer to the Intel Desktop Board D845HV Technical Product Specification (TPS) for more details.

• What is Intel® Application Accelerator?
  Intel® Application Accelerator (IAA) is designed to take advantage of devices supporting ATA DMA/Ultra DMA technologies, improve system performance, and includes:
  • Faster Boot Time via Accelerated Operating System Load Time
  • Accelerated Disk I/O for Games, Graphics Applications, Disk Utilities, and Media Authoring Applications
  • Performance-enhancing data caching for Intel® Pentium® 4 processor-based systems
  • Support for 137GB and larger hard drives

• Should I use Intel® Storage Drivers or Intel Application Accelerator?
  Use either the Intel® Ultra ATA Storage Driver (ISD) or the Intel Application Accelerator (IAA) to automatically enable fast Ultra ATA transfers for a variety of ATA/ATAPI mass storage devices. IAA offers a performance advantage for those using Intel Pentium 4 processor-based systems while also offering support for next generation storage technology.

• Should I upgrade from ISD to IAA?
  IAA offers a performance-enhancing data caching for Intel® Pentium® 4 processor-based systems and support for next generation storage technology. Use either the Intel Ultra ATA Storage Driver or the Intel Application Accelerator (IAA) to automatically enable fast Ultra ATA transfers for a variety of ATA/ATAPI mass storage devices.

• What is the performance difference (IAA and ISD)?
  IAA offers performance-enhancing data caching for Intel Pentium 4 processor-based systems. Users of IAA on Intel Pentium 4 processor-based systems may see I/O performance improvements over the Intel Storage Driver.

• Will IAA improve my SCSI performance?
  IAA enables fast Ultra ATA transfers for a variety of ATA/ATAPI mass storage devices. SCSI, USB, and other non-ATA devices will see no benefit from IAA.

• Is IAA compatible with Intel® Active Monitor (IAM)?
  Yes. Intel Active Monitor revision 1.14 or greater is required.

• What type of battery is used in the Desktop Board D845HV?
  A 3-volt (CR2032) coin cell is used to supply power to the Real Time Clock (RTC) when power is not available from the power supply.

• How do I disable the onboard LAN?
  Onboard LAN can be disabled through the desktop board BIOS Setup utility. The setting is located in the Advanced screen under Peripheral Configuration. Refer to the D845HV TPS (Technical Product Specification) for more details.

• Why doesn't my Intel Desktop Board D845HV power-up?
  The Intel Desktop Board D845HV has specific requirements for the power sequencing and limits. A momentary switch should be used for the power on/off switch. The power supply chosen must have the additional 4-pin +12 volt connector and meet the ATX12V or SFX12V specification. If the power supply 2-by-2 connector is not plugged into the board connector located near the processor socket, the system will not boot.

• Why are the drivers on Intel's public Web site revisions of those available on some vendor public Web sites?
  Intel performs internal testing on all drivers before posting them on the Intel developer desktop board Web site. In many cases, it is not practical to test all drivers on all desktop boards. For this reason, application vendors may release drivers that have not been tested by Intel. These drivers may be available on the vendor public site, but not on the Intel public site. This does not mean the drivers do not work; it simply indicates that Intel has not validated the drivers.

• How many serial ports does the Intel Desktop Board D845HV support?
  All Intel Desktop Board D845HV have one serial port on the back panel. An optional connector, if present, provides a place to connect a serial adapter cable to provide for a second serial port.

• Why isn't my IDE device displayed during power-up POST?
  All IDE devices must be ATA4 compliant. Cable length is limited to 18 inches. IDE devices not selected as auto-detect in the BIOS setup are not displayed as part of the POST tests.

• Can I use a second floppy disk drive on my Intel Desktop Board D845HV?
  No. The Intel Desktop Board D845HV uses a SMSC SIO component to support the floppy-disk controller. This component and equivalent components can support a single standard-legacy type FDD, a 2.88 MB Super I/O type FDD, or a three-mode type FDD.
  
  **Designed to support up to 3GB PC133 SDRAM memory using 512 Mbit technology. Currently validated to 1.5 GB using 256Mbit technology. Visit http://support.intel.com/support/motherboards/desktop for the latest validated memory support.

Marketing FAQ

General Questions:

• What features are incorporated into the Intel® Desktop Board D845HV?
  The Intel Desktop Board D845HV offers PC133 SDRAM support for Pentium® 4 processors utilizing the Intel NetBurst® micro-architecture including 400-MHz system bus. The Desktop Board D845HV has three PCI slots, integrated AC'97 Audio with SoundMAX* with SPX and Instantly Available PC (Suspend-to-RAM). In addition to these standard features, the Intel Desktop Board D845HV comes with either a Communication and Networking Riser (CNR) or Integrated Intel® PRO/100 Network Connection.
  
  The Intel Desktop Board D845HV allows use of an AGP 4X adapter card (that must comply with the AGP 2.0 specification) operating at 1.5V. The Intel Desktop Board D845HV supports Ultra ATA-66 and ATA-100 hard disk drives. The Intel Desktop Board D845HV has an additional USB controller that provides up to 7 USB connections. Boards that have six or seven USB ports have four back panel connectors (two dual-stacked connectors); Boards with four USB ports have one set of stacked back panel connectors. The remaining two USB ports are accessible via the front panel USB header.

• What is Intel® Active Monitor and how does it work?
  Intel® Active Monitor is a system monitoring tool that alerts you when any monitored sensors on your Intel motherboard have gone outside of their recommended range. If an alert occurs, Intel Active Monitor can provide you with several different alert notifications. The standard notification is the Intel Active Monitor icon in the system tray, which turns red and flashes in the event of an alert. Additionally, you can choose to receive audio alerts and pop-up window alert messages.
  
  Intel Active Monitor also:
  • Provides easy channel bar navigation in place of menus
  • Retains a history of the previous alerts on your system
  • Provides important information about your system's software and hardware, which you can print or save
  
  
  Intel Active Monitor is bundled on some versions of the D845HV desktop board and is available for download. For further information about how Intel Active Monitor works, or to download the utility.
  
  Active Monitor reports the Intel Desktop Board D845HV tachometer fans along with its temperature zones on the motherboard as outlined:
  • Processor Zone is monitoring the Pentium 4 processor
  • System Temperature is being monitored by an on board component
  • If only one fan has a tachometer it will be displayed as Fan 1
  • The CPU Fan tach signal is displayed as Fan 2 if the rear chassis tach fan is also connected
  • he rear chassis fan is monitoring the tach signal and is displayed as Fan 1
  • The front chassis fan, if installed, is not monitoring the tach signal and is not displayed
  
  
  

  Note When removing or adding additional hardware, the Intel Active Monitor should be uninstalled and then reinstalled to redetect any item removed or added.

• Does Intel qualify memory for use on Intel desktop boards?
  No. OEMs and system integrators are solely responsible for qualifying the memory they include in their systems. Intel performs only limited testing of selected memory modules to verify functionality of the desktop board's design. Intel offers a program in which an independent test lab tests system memory and reports passing results to Intel for inclusion on our Internet-based tested-memory list.

• What is Instantly Available PC?
  Instantly Available PCis a power-savings and ease-of-use initiative that includes Suspend-to-Ram (STR) technology, the S3 state of the ACPI specification. STR allows a properly configured system to go into a low-power mode, saving open applications, active files and information about the system's configuration to main memory. In this low-power state, memory remains powered on to retain the system information, while most other components turn off to conserve energy. Fans are turned off to provide silent operation so the system appears "off."
  
  The PC can be left in STR state and awakened periodically to perform preprogrammed events like downloading email or searching and filtering Web content. An incoming phone call can also awaken the PC and trigger a desired response, similar to a telephone answering machine. When an incoming request arrives via a "wake device" or the user wishes to resume operation, the PC comes alive within a few seconds by reconfiguring itself based on the information previously saved to memory. No boot is required.

• What is a wake device?
  A wake device is a mechanism that awakens the system from the STR state. Typically, this mechanism is a network card or a fax/modem that is compliant with the PCI 2.2 specification. When the system goes into the STR state, these wake devices receive standby current from the power supply. Although these devices are in a low-power state they have sufficient current to remain awake to recognize incoming activity, such as a network request or a phone call.

• What is AC'97 and what does it do?
  The AC'97 (Audio Codec 1997) specification defines a high-quality audio architecture that advances the migration to digital audio, while maintaining support for analog interconnects for backward compatibility.

• Why is SoundMAX* with SPX (SoundMAX* 3.0) superior to other integrated audio solutions?
  SoundMAX* with SPX delivers the digital sound quality and features that end users expect from digital communications networks and consumer audio equipment. SPX (Sound Production eXtentions) technology and 3D positioning provide immersive gaming not available with any other integrated audio solutions. SPX literally creates sounds in real-time as the user is playing the game, rather than playing the same MIDI or wave file over and over. The result is much more dynamic, responsive sound. Offered exclusively on Intel® Desktop Boards in 2001.

• What is the Communications and Networking Riser (CNR)?
  The D845HV desktop board supports the CNR connector. The CNR connector is designed to support audio, modem, USB* and LAN interfaces of the 845 chipset. The interfaces supported include AC '97, LAN and SMBus. Some versions of the D845HV desktop board do not ship with a CNR connector.

• What kind of Power Supply is needed for the Intel® Desktop Board D845HV?
  The Intel Desktop Board D845HV requires an ATX12V or SFX12V compliant power supply to function according to desktop specifications.

  
  
  Updated: Thursday, December 20, 2001

This applies to:

Intel® Desktop Board D845HV