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| Intel® Desktop Board D845GVAD2 |
| Frequently asked questions |
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Contents
For technical support, contact your place of purchase -- which will have the most current information about your specific product or configuration.
Technical FAQ
Marketing FAQ
Technical Questions General Questions:
Memory:
Instantly Available PC and Power Supplies:
Jumpers/BIOS Setup Options:
Video:
On-Board Audio:
Input/Output:
Marketing Questions General Questions:
Memory:
On-Board Audio:
Power Supply:
Technical FAQ
General Questions:
- What processor does the Intel® Desktop Board D845GVAD2 support?
At the time of launch, the Intel® Desktop Board D845GVAD2 will support the Intel® Pentium® 4 processor with a system bus of 533 MHz. The Intel Desktop Board D845GVAD2 also supports the Intel Pentium 4 processor and the Intel® Celeron ® processor with a 400 MHz FSB system bus in the uPGA478-pin package. For the latest supported speeds, please refer to the Processor Support Table.
- How do I find technical information on the Intel ® Desktop Board D845GVAD2?
Refer to the Intel® Desktop Board D845GVAD2 Technical Product Specification, and the Desktop Board Specification Update, both of which are available on the Technical Documentation page for the Desktop Board D845GVAD2.
- How do I install and secure a processor on the Desktop Board D845GVAD2?
The processor installs in the uPGA478-pin package socket connector and the processor's fan heat sink solution secures by attaching to the integrated retention mechanism. Make sure you use an adequate heat sink solution such as that provided with the Boxed Intel Pentium 4 processor or the Boxed Intel Celeron processor.
- How many expansion slots does the Desktop Board D845GVAD2 contain?
The Desktop Board D845GVAD2 has four PCI connectors. All PCI slots support bus-mastering devices.
- Does the Desktop Board D845GVAD2 support STR (Suspend-to-RAM)?
The Desktop Board D845GVAD2 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.
- Why is my USB device not operating to its specification?
Each USB port is treated as an independent USB path, and the performance of each USB port is dependent upon the detected USB device(s) within that USB port (point-to-point) device connection. Its performance will be limited to the least capable performance element within that ports connection. For example, if you connect a USB 2.0 high speed device to a USB 1.1 Hub, which is then connected to a USB port on the motherboard, that connected USB 2.0 high speed device will be limited to the performance through that USB 1.1 Hub. It is recommended that USB 2.0 high speed devices be connected directly to the motherboard or to a USB 2.0 high speed capable hub.
Refer to the device manufacturer of your USB device for specifications and installation requirements. Additional USB design specifications reference information can be found within the Technical Product Specification. Memory:
- What memory configurations are supported on the Desktop Board D845GVAD2?
The Desktop Board D845GVAD2 supports DDR 200 (PC1600) and DDR 266 (PC2100) SDRAM Memory. There are two DIMM sockets supporting up to two 184-pin DDR SDRAM Dual Inline Memory Modules (DIMMs) with gold-plated contacts. The Desktop Board D845GVAD2 is designed to support a memory range of 64 MB minimum (using 64 Mbit technology) up to 2.0 GB maximum** [See note below] (using 512 Mbit technology) that conforms to the latest Intel JEDEC specifications.
| Note |
The Desktop Board D845GVAD2 has been designed to support DIMMs based on 512 Mbit technology for a maximum onboard capacity of up to 2.0 GB, but this technology has not been validated (currently validated up to 1.0 GB using 256 Mbit technology) on this board. Please refer to the memory page for additional information. | |
- Can I use ECC DIMMs on the Desktop Board D845GVAD2?
No. The Desktop Board D845GVAD2 supports unbuffered non-ECC DIMMs only. ECC DIMMs are not supported as they could potentiality exceed the current limitation of the memory voltage regulators.
| Caution |
Use of ECC DIMMs on the Desktop Board D845GVAD2 could damage the Desktop Board. | |
- What kind of problems might occur in a DDR SDRAM-based system that uses non-compliant DIMMs?
Extreme memory failures can prevent a system from even booting. 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 DDR SDRAM memory device. Check to ensure that system memory is properly installed and that the DIMMs are on the Desktop Board D845GVAD2 tested-memory list.
- My system is reporting less memory than what I have installed. Why?
The D845GVAD2 BIOS contains an advanced video configuration control that determines how much of the system's RAM can be reserved for use by the on board video. The amount of reserved memory is subtracted from the total installed memory. The difference between installed memory and total available system memory can be seen in the BIOS. The frame buffer size can be reduced in BIOS to make more system memory available. Instantly Available PC and Power Supplies:
- What kind of power supply do I need for the Intel® Desktop Board D845GVAD2?
The Desktop Board D845GVAD2 requires a power supply that complies with the ATX/ATX12V Power Supply Design Guide Version 1.2 or the SFX/SFX12V Power Supply Design Guide Version 2.1. These design guides are available from http://www.formfactors.org*
The ATX12V or SFX12V power supply required for the Desktop Board D845GVAD2 has the standard 20-pin ATX Main Power Connector, and a 4-pin +12V Aux. Power Connector. The supplemental 4-pin +12V power connector has been added to enable the delivery of more +12VDC current to the desktop board. This connector is used by the board to power the processor's voltage regulator module (VRM).
| Caution |
The system will not boot if there is a failure to use an ATX12V or SFX12V power supply, or if there is a failure to connect the 4-pin +12V power supply lead to the Desktop Board D845GVAD2. | |
- 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?
A special power supply is not needed to support "Instantly Available PC". However, the power supply must provide enough standby current to support the needs of all wake-capable devices in the system. The more wake-capable devices in the system, the greater the standby current required from the power supply. Intel recommends starting with a power supply capable of providing a minimum of 1.5 Amps (2.0 Amps recommended) of +5V standby current. To be sure, total the amount of standby current required by the various components that can wake the system from the STR state. In your calculations, include the components on the Desktop Board D845GVAD2, USB, and on the add-in cards. Make sure the power supply provides at least that amount of standby current. Refer to the Technical Product Specification for information on how much +5V standby current the on-board components of the Desktop Board D845GVAD2 require. Jumpers/BIOS Setup Options:
Video:
- What is the Intel® Extreme Graphics controller?
Intel® Extreme Graphics controller is the integrated graphics controller within the Intel® 82845GV Graphics and Memory Controller Hub (GMCH).
- Can I change the size of my video frame buffer?
The D845GVAD2 BIOS can be set to allow 512 KB, 1 MB or 8 MB video frame buffer. This memory is dedicated exclusively to the 845GV chipset video frame buffer. In addition to any memory dedicated for the video frame buffer, the 845GV chipset may dynamically allocate up to 48 MB of system memory for video, as needed. On systems with at least 256 MB of installed system memory, up to 64 MB of system memory may be allocated for video. Please check the driver page for latest driver versions.
- How do I designate an add-in PCI video adapter as my primary video adapter?
The primary video adapter can be changed from the integrated graphics controller to an add-in PCI adapter through the BIOS Setup Utility. The setting is located in the Advanced screen under Video Configuration. On-Board Audio:
- What audio solution is available on the Desktop Board D845GVAD2?
The Desktop Board D845GVAD2 offers integrated audio that uses a portion of the Intel® 82801DB I/O Controller Hub 4 (ICH4) with a SigmaTel* STAC9750/STAC9766 audio 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 program. 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 Technical Product Specification for more details. Input/Output:
- Does the Desktop Board D845GVAD2 support Ultra ATA/100 hard drives?
Yes. The Desktop Board D845GVAD2 supports Ultra ATA transfer rates up to 100 MB/sec (ATA/100) by way of the ICH4 IDE controller with two independent bus-mastering IDE interfaces. An Ultra ATA/100 supported hard drive and an 80 conductor IDE cable are required to take advantage of the increased bandwidth available on the IDE channel.
One of the new features of the Intel Desktop Board D845GVAD2 is its ability to support larger ATA/100 capable hard drives with 48-bit Logical Block Addressing (LBA) within the BIOS along with 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 on-board buffer size to take advantage of the increased bandwidth available on the IDE channel.
- Can I mix Ultra ATA devices with other devices on the same IDE channel?
Yes, the chipset is capable of supporting independent IDE device timings. Although, if the hard drives are mixed they may run at the slowest Ultra DMA protocol depending on whether you are using the native operating system IDE driver or Intel® Application Accelerator. Intel® Application Accelerator allows each device to run at its optimal timings. Check with your OS provider to see if their native IDE driver supports independent timings for IDE devices. It is recommended that the Ultra ATA/100 drives be attached to the primary IDE channel using a 40-pin 80-conductor IDE cable and that the other drives be attached to the secondary channel using a good quality, 40-pin 40-conductor IDE cable.
| Note |
Some Ultra DMA cables use a hole in the ribbon cable as a cable detect mechanism to determine if an Ultra DMA IDE or standard IDE cable is installed. | |
- What type of battery is used in the Desktop Board D845GVAD2?
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.
- Why does my Desktop Board D845GVAD2 system fail to boot?
The Desktop Board D845GVAD2 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.
- 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 Technical Product Specification for more details.
- Why are the drivers on Intel's public Web site previous 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.
- Does the Desktop Board D845GVAD2 support two serial ports?
Yes. The Desktop Board D845GVAD2 has one serial port connector on the back panel and a second serial port connector on the motherboard.
- Why isn't my IDE device displayed during power-up POST?
All IDE devices must be ATA4/ATAPI-5 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 Desktop Board D845GVAD2?
No. The Desktop Board D845GVAD2 uses a SMSC LPC47M102 SIO component to support the floppy-disk controller. This component and equivalent components can support a single standard legacy type floppy disk drive, either 1.2MB or 1.44MB.
- What type of front panel USB connector should I use?
To ensure that Hi-Speed USB devices run at full speed potential, use only a front panel USB connector that conforms to the USB 2.0 specification for Hi-Speed USB devices. Check with the front panel USB connector vendor or chassis vendor to verify USB 2.0 Hi-Speed compliancy.
- Why aren't my USB devices working at all?
If you are using Microsoft* Windows* XP, and you have disabled "High-Speed USB" in the BIOS Setup Utility, USB may not work properly. To correct this issue, either enable "High-Speed USB", or install Windows XP Service Pack 1, available through http://www.microsoft.com/*.
Marketing FAQ
General Questions:
- What features are incorporated into the Desktop Board D845GVAD2?
The Intel® Desktop Board D845GVAD2 delivers an integrated graphics solution with essential features that support Intel® Celeron® processors with 400MHz system bus and Intel® Pentium® 4 processors with 400 and 533MHz system bus in the mPGA478-pin package. Featuring the Intel® 845GV chipset with support for up to 2GB of DDR266 SDRAM memory, this board delivers remarkable value and flexibility with four PCI slots, Hi-Speed USB 2.0 and optional integrated LAN.
- What are Intel® Extreme Graphics?
Intel Extreme Graphics is the integrated graphics solution found only in Intel's 845G, 845GL, 845GV, and 845GE chipsets. Intel Extreme Graphics offer a rich 3D environment for both the business and the home user and is based on these Intel innovative technologies:
DVMT
Dynamic Video Memory Technology (DVMT) allows up to 64 MB of system memory to be shared among the OS, applications, and graphics display. DVMT mitigates the need for additional dedicated stand-alone memory, frees memory for other applications when not needed by the graphics controller, and ensures optimal system memory usage for optimal graphics and system performance.
ZRT
Zone Rendering Technology (ZRT) is a unique rendering technology developed by Intel for rendering (drawing) 3D graphics scenes. ZRT reduces the memory bandwidth needed to render each scene, ensures most efficient system memory usage for optimal graphics and system performance, and removes the requirement for dedicated graphics memory.
RPTR
Rapid Pixel Technology and Rendering (RPTR) is a performance enhancement that speeds-up visual effects without impacting system performance. RPTR features an improved 2D BLT engine that has been extended to 256-bit to support faster fill rates. RPTR also features dedicated non-blocking and multi-tier cache structures, single-pass-quad-texture support, and multi-context switching.
These integrated graphics technologies enable you to deliver a system with 3D graphics performance that is comparable to mainstream discrete graphics at a lower cost.
- What is Hi-Speed USB 2.0?
USB 2.0 offers high-speed 40X performance over fast speed USB 1.1 based systems. USB 2.0 is designed for supporting devices with high I/O requirements such as scanners, storage, cameras, and LAN devices. USB 2.0 is backwards compatible with USB 1.1 so that you can continue to use devices, such as USB keyboards and mice, which do not require the high bandwidth that USB 2.0 offers. When purchasing USB 2.0 devices look for the High Speed USB logo. This ensures that the device meets the USB 2.0 specifications.
- Does the Desktop Board D845GVAD2 support ADD cards?
No, since Intel® Desktop Board D845GVAD2 does not offer an AGP slot, ADD cards are not supported. For ADD card support please consider Intel® Desktop Boards D845GRG, D845GBV, D845GERG2, and D845GEBV2. Memory:
- 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.
Instantly Available PC and Power Supplies:
- What is Instantly Available PC?
Instantly Available PC, also known as Suspend-to-RAM (STR), is a technology closely associated with 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 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 such preprogrammed events as downloading e-mail or searching and filtering Web content. An incoming phone call can also wake 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. On-Board Audio:
- 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. Power Supply:
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End of Interactive Support AnnouncementThese products are no longer being manufactured by Intel. Additionally, Intel no longer provides interactive support for these products via telephone or e-mail, nor will Intel provide any future software updates to support new operating systems or improve compatibility with third party devices and software products.
THESE DOCUMENTS ARE PROVIDED FOR HISTORICAL REFERENCE PURPOSES ONLY AND ARE SUBJECT TO THE TERMS SET FORTH IN THE "LEGAL INFORMATION" LINK BELOW. For information on currently available Intel products, please see www.intel.com/products.
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Solution ID: CS-015836
Date Created: 21-Sep-2004
Last Modified: 28-Jul-2009
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