Intel(R) Corporation
Intel® Desktop Board JN440BX

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THESE PRODUCT SUPPORT DOCUMENTS ARE PROVIDED FOR HISTORICAL REFERENCE ONLY AND ARE SUBJECT TO THE TERMS SET FORTH IN THE "TERMS OF USE" INFORMATION.

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Software and drivers
Bios and drivers

Product Documentation
icon Technical Product Specification
icon Specification Update

Compatibility
Supported processors

Different versions of the Intel® JN440BX Motherboard provide different processor support. The processor's VID pins automatically program the voltage regulator on the motherboard to the required processor voltage. The system bus speed of 66 MHz or 100 MHz is automatically selected. The processor connects to the motherboard through the 242-contact slot connector.

Warning: Processors not specifically listed by type and rated speed may have requirements that are not supported by the motherboard's design. Use of unsupported processors may result in improper operation, damage to the motherboard or processor, or reduced product life.

Processor Family Processor Speed System Bus Frequency Cache Size BIOS Version Notes
Pentium® III processor 850 MHz 100 MHz 256 KB P17 or greater The following board revisions (AA numbers) support these processors:

A06449-400 or later.

See the board revision note, below, for an explanation.

800 MHz 100 MHz 256 KB P17 or greater
750 MHz 100 MHz 256 KB P17 or greater
700 MHz 100 MHz 256 KB P16 or greater
650E MHz 100 MHz 256 KB P16 or greater
550E MHz 100 MHz 256 KB P16 or greater
600 MHz 100 MHz 512 KB P16 or greater The following board revisions (AA numbers) support these processors:

A06449-400 or later.
729002-400 or later.

See the board revision note, below, for an explanation.

550 MHz 100 MHz 512 KB P16 or greater
500 MHz 100 MHz 512 KB P16 or greater
450 MHz 100 MHz 512 KB P12 or greater
Pentium® II processor 450 MHz 100 MHz 512 KB P12 or greater All board revisions support these processors
400 MHz 100 MHz 512 KB P12 or greater
350 MHz 100 MHz 512 KB P12 or greater
333 MHz 66 MHz 512 KB P12 or greater
300 MHz 66 MHz 512 KB P12 or greater
266 MHz 66 MHz 512 KB P12 or greater
233 MHz 66 MHz 512 KB P12 or greater
Intel® Celeron® processor 533 MHz 66 MHz 128 KB P07 or greater
500 MHz 66 MHz 128 KB P07 or greater
466 MHz 66 MHz 128 KB P07 or greater
433 MHz 66 MHz 128 KB P07 or greater
400 MHz 66 MHz 128 KB P07 or greater
366 MHz 66 MHz 128 KB P07 or greater
333 MHz 66 MHz 128 KB P07 or greater
300A MHz 66 MHz 128 KB P07 or greater
300 MHz 66 MHz 0 KB P07 or greater
266 MHz 66 MHz 0 KB P07 or greater

Use of unsupported processors may result in improper operation, damage to the desktop board or processor, or reduced product life. Except as provided in Intel's Terms and conditions of Sale for such products, INTEL ASSUMES NO LIABILITY WHATSOEVER, AND INTEL DISCLAIMS ANY EXPRESS OR IMPLIED WARRANTY, RELATING TO SALE AND/OR USE OF THE INTEL PRODUCTS INCLUDING LIABILITY OR WARRANTIES RELATING TO FITNESS FOR A PARTICULAR PURPOSE, MERCHANTABILITY, OR INFRINGEMENT OF ANY PATENT COPYRIGHT OR OTHER INTELLECTUAL PROPERTY RIGHT.

Board Revision note: A small bar-coded label, similar to the diagram shown below, can be found on the component side of the desktop board. The numbers following the letters "AA" can help identify the type and version of your desktop board. The AA contains a 6 digit main number, and a 3 digit dash number (the 3 numbers following the "-".

The statement "...or later" refers to the dash number of the AA (the three numbers following the "-"). If this number is greater than the number listed in the table, the board supports the associated processor(s).

If your 6 digit main number is not listed in the table, contact your system manufacturer for processor support information.



System memory

Contents

System Memory Combinations

The motherboard has three, dual inline memory module (DIMM) sockets. Minimum memory size is 16 MB; maximum memory size is 768 MB. The BIOS automatically detects memory type, size, and speed.

The motherboard supports the following memory features:

  • 168-pin DIMMs with gold-plated contacts
  • 66 or 100 MHz (matching Host Bus speed) unbuffered SDRAM only
  • Non-ECC (64-bit) and ECC (72-bit) memory
  • 3.3 V memory only
  • Single- or double-sided DIMMs in the following sizes:
DIMM Size Non-ECC Configuration ECC Configuration
16 MB 2M x 64 2M x 72
32 MB 4M x 64 4M x 72
64 MB 8M x 64 8M x 72
128 MB 16M x 64 16M x 72
256 MB 32M x 64 32M x 72

Memory can be installed in one, two, or three sockets. Memory size can vary between sockets.

Note: BIOS revision P14 or later is required to support 256 MB DIMMs. The 256 MB DIMMs used with this board must be built with 128 Mbit device technology.


DIMM Vendors - Web Sites

The list below contains vendors that have tested their memory for Intel® JN440BX motherboards, and that have their products listed on their own website. Please visit their sites to obtain information on their products.

DIMM Vendors - SDRAM Non-ECC DIMMs
Synchronous DRAM (SDRAM) improves memory performance through memory access that is synchronous with the memory clock. This simplifies the timing design and increases memory speed because all timing is dependent on the number of memory clock cycles.

NOTE:All memory components and DIMMs used with the JN440BX motherboard must comply with the PC SDRAM Specifications. These include: the PC SDRAM Specification (memory component specific), the PC unbuffered SDRAM Specifications, and the PC Serial Presence Detect Specification.

Customers can access these documents through the PC SDRAM Specifications website. See the technical product specification for more information about these specifications.

The following tables list DIMMs that have been tested. DIMMs that are not listed should also function properly as long as their specifications are compatible with the devices listed below. In general, DIMM devices that are faster than those specified for a given platform will work, although no extra performance will be realized.

Vendor1 Test Vendor Part # Comments
1M x 64 (8 MB) Unbuffered SDRAM Non-ECC - 100 MHz
None at this time    
1M x 64 (8 MB) Unbuffered SDRAM Non-ECC - 66 MHz
None at this time    
2M x 64 (16 MB) Unbuffered SDRAM Non-ECC - 100 MHz
Micron Full MT8LSDT264AG-10AC4
Micron Full MT8LSDT264AG-10BC4
Samsun Full KMM366S203CT-GL1
2M x 64 (16 MB) Unbuffered SDRAM Non-ECC - 66 MHz
None at this time.    
4M x 64 (32 MB) Unbuffered SDRAM Non-ECC - 100 MHz
Micron Full MT5LSDT472AG-10EC5
Micron Full MT4LSDT464AG-10EC5
Micron Full MT4LSDT464AG-10EC6
Micron Full MT16LSDT464AG-10AC4
Micron Full MT16LSDT464AG-10BC4
Samsung Full M366S0403CT0-C1L00
Samsung Full M366S0424BT0-C1L00
Samsung Full KMM366S403CT-GL1
Samsung Full KMM366S424BT-GL1
4M x 64 (32 MB) Unbuffered SDRAM Non-ECC - 66 MHz
None at this time.    
8M x 64 (64 MB) Unbuffered SDRAM Non-ECC - 100 MHz
Micron Full MT9LSDT872AG-10EC7
Micron Full MT8LSDT846AG-10EC7
Samsung Full KMM366S823BT-GL1
Samsung Full KMM366S823CTS-GL1
8M x 64 (64 MB) Unbuffered SDRAM Non-ECC - 66 MHz
None at this time.    
16M x 64 (128 MB) Unbuffered SDRAM Non-ECC - 100 MHz
Micron Full MT16LSD1664AG-10CD4
Micron Full MT18LSDT1672AG-10EC7
Samsung Full KMM366S1724T-GL1
Samsung Full M366S1724MT0-C1L00
16M x 64 (128 MB) Unbuffered SDRAM Non-ECC - 66 MHz
None at this time.    


DIMM Vendors - SDRAM ECC DIMMs
Error checking and correcting (ECC) memory detects multiple-bit errors and corrects single-bit errors. When ECC memory is installed, the BIOS supports both ECC and non-ECC mode. ECC mode is enabled in the Setup program. The BIOS automatically detects if ECC memory is installed and provides the Setup option for selecting ECC mode. If non-ECC memory is installed, the Setup option for ECC mode does not appear.

The following table describes the effect of using Setup to put each memory type in each supported mode. Whenever ECC mode is selected in Setup, some performance loss occurs.

Memory Error Detection Mode Established in Setup Program

  ECC Disabled ECC Enabled
Non-ECC DIMM No error detection N/A
ECC DIMM No error detection Single-bit error correction
multiple-bit error detection

The following tables list DIMMs that have been tested. DIMMs that are not listed should also function properly as long as their specifications are compatible with the devices listed below. In general, DIMM devices that are faster than those specified for a given platform will work, although no extra performance will be realized.

Vendor1 Test Vendor Part # Comments
2M x 72 (16 MB) Unbuffered SDRAM ECC - 100 MHz
Micron Full MT9LSDT272AG-10AC4
Samsung Full MT9LSDT272AG-10BC4
Samsung Full KMM374S203CT-GL1
2M x 72 (16 MB) Unbuffered SDRAM ECC - 66 MHz
None at this time.    
4M x 72 (32 MB) Unbuffered SDRAM ECC - 100 MHz
Micron Full MT18LSDT472AG-10BC4
Samsung Full KMM374S403CT-GL1
Samsung Full KMM374S3323BT-GL1
Samsung Full M374S0403CT0-C1L00
Samsung Full  M374S3323BT0-C1L00
4M x 72 (32 MB) Unbuffered SDRAM ECC - 66 MHz
None at this time    
 8M x 72 (64 MB) Unbuffered SDRAM ECC - 100 MHz
Micron Full MT9LSDT872AG-10BD2
NEC Full MC-458CA726F-A10
NEC Full MC-458CA726F-A80
Samsung Full KMM374S823BT-GL1
Samsung Full KMM374S823CTS-GL1
Samsung   Full M374S0823BT0-C1L00
8M x 72 (64 MB) Unbuffered SDRAM ECC - 66 MHz
None at this time.    
16M x 72 (128 MB) Unbuffered SDRAM ECC - 100 MHz
Micron Full MT9LST1672AG-10EB1
Samsung Full KMM374S1623BT-GL1
Samsung Full KMM374S1623DT-GL1
Samsung Full M374S1623CT0-C1L00
16M x 72 (128 MB) Unbuffered SDRAM ECC - 66 MHz
None at this time.    

1 These Samsung part numbers are obsolete.

Installation and use
Last known issues

Latest BIOS and drivers
The BIOS identifier for this motherboard is 4J4NB0X1.86A. The current BIOS version and current drivers for the Intel® JN440BX Motherboard can be found on developer.intel.com .


Processors supported
The Intel JN440BX Motherboard supports Pentium® III processors, Pentium® II processors, and Intel® Celeron® processors. Also see the important additional information on supported processors .


Processor Integration
A Pentium III or Pentium II processor connects to the motherboard through a 242-pin edge connector. The Intel JN440BX Motherboard uses a single Retention Mechanism (RM) for securing the processor into the Slot 1 connector. More information about retention mechanisms is available on the Pentium II processor support components page.

It is recommended that an active (fan) heatsink be used with the processor for proper cooling. It is the responsibility of the system integrator to ensure thermal considerations, listed in the Intel JN440BX Motherboard Technical Product Specification, are met.


System Memory
The three Dual In-line Memory Module (DIMM) sockets support a minimum of 8 MB of SDRAM, and a maximum of 384 MB. Memory size and speed can vary between sockets, allowing 100 MHz DIMMs and 66 MHz DIMMs to be installed at the same time. However, processors with a 100 MHz Front Side Bus (FSB) can only be paired with 100 MHz SDRAM DIMMs. See the list of tested memory.


Power Considerations
The Intel JN440BX Motherboard requires a 3.3 volt power supply that complies with the NLX 1.2 specification. For Wake On LAN* (WOL) technology capability, the Intel JN440BX Motherboard also requires a soft-off power supply that has at least 720mA of 5 volt standby current to keep the remote WOL circuit alive.

There is no power connector on the Intel JN440BX Motherboard. Power, I/O slots, and data connections all reside on an NLX 1.2 compliant riser card, which is required to power the motherboard. Risers may be specific to a chassis style or sold by third party vendors. See the NLX website for vendor lists. Note: This link will take you off of the Intel website. Intel is not responsible for the content of this site.


Disabling the Onboard Audio
The onboard audio can be disabled using the BIOS Setup Utility. Select the Advanced menu, then the Peripheral Configuration screen.


AGP Video Cards Supported
The Intel JN440BX Motherboard supports half-length NLX form factor AGP cards. For information on the half-length form factor, check the current AGP interface specification and the associated Engineering Change Releases (ECRs).

Note: This link will take you off of the Intel website. Intel is not responsible for the content of this site.


Will My ATA-66 Hard Drive Work on the Intel JN440BX Motherboard?
The IDE controller integrated into the Intel JN440BX Motherboard supports Ultra DMA modes 0,1, and 2. Ultra DMA mode 2, also known as ATA-33 or Ultra DMA 33, is the highest speed transfer mode supported by the Intel JN440BX Motherboard. The motherboard hardware cannot support the maximum transfer rate of the ATA-66 drives. A drive that complies with the ATA-66 specification will run timings up to Ultra ATA-33 on the Intel JN440BX Motherboard. Please refer to the Technical Product Specification and the Motherboard Specification Update for more complete details on the various transfer modes.



Additional information

Contents
For technical support, contact your place of purchase -- which will have the most current information about your specific product or configuration. You also can check the Intel FAQ for that product.

Frequently Asked Questions: Intel JN440BX Motherboard

  • What processors are supported on the Intel JN440BX Motherboard?
    See the Processor Support Table for details.

  • Why is the user logo area not being displayed?
    Intel is currently investigating this issue in the BIOS P02.

  • Why can't I find speed settings in my BIOS configuration mode?
    The processor speed option previously available in configuration mode is not displayed with newer Intel® processors, and will not effect the processor speed. Newer Intel processors boot with the ratio preset and tested during manufacturing. The fixed pre-selected ratios are reflected in the EBL_CR_POWERON register.

  • What type of battery is used in the Intel JN440BX Motherboard?
    Standard CR2032 coin cell is used to supply power to the RTC circuit when no power is available from the power supply.

  • Why does shutting down the system from Windows 95 take so long or hang?
    Intel is currently investigating this issue. In the meantime, please try the following:
    1. Go into BIOS Setup, press <F9> and select 'Yes' to reset the default BIOS values.
    2. Change other Setup options as needed.
    3. Go to the Advanced menu and change the "Reset Configuration Data" entry to 'Yes'.
    4. Press <F10> and select 'Yes' to save these changes.

    You should also verify that you have installed the PIIX4 INF Update Utility (SETUPEX.EXE) into your system.

    Intel's PIIX Bus Master IDE driver may be a factor in this issue. Contact your place of purchase to find out if this driver is installed on your system. To determine if your problem is related to the Intel® PIIX Bus Master IDE driver, remove the driver by running the de-installer program. Depending on your system settings and configuration a re-install of your operating system may also be required.

    If you do discover that Intel's driver is the source of the hang or delay, there is a workaround for those using Windows 95 OEM Service Release 2.x. To confirm that your version of the operating system contains this workaround, look for the 4.00.950 B or 4.00.950 C version number located under Control Panel -> System -> General. These OS versions, as opposed to and 4.00.950 A, have their own Bus Master IDE driver built-in. To enable the built-in driver, perform the following steps:

    1. Under Windows 95 System Properties/Device Manager, select the appropriate bus master capable IDE device (example: Disk drives, then GENERIC IDE DISK TYPE01)
    2. Click on the "Settings" tab.
    3. Check the DMA box.
    4. Click on OK to save this setting, then OK to close the Device Manager.

  • Does the JN440BX motherboard support MMX™ technology?
    The Intel JN440BX Motherboard is designed for the Pentium II processors. All current Pentium II processors contain MMX technology.

  • How much main memory and what memory configurations are supported on the Intel JN440BX Motherboard?
    The Intel JN440BX Motherboard has three dual in-line memory module (DIMM) sockets that support SDRAM DIMMs. Memory can be installed in one, two, or all three of the DIMM sockets. The minimum DIMM memory size is 8MB and the maximum memory size is 786MB using 256MB DIMMs. Memory size and speed can vary between sockets. This means 100-MHz DIMMs and 66-MHz DIMMs can be installed on the same motherboard.

    Note: Processors with 66-MHz Front Side Bus (FSB) can be paired with either 66-MHz or 100-MHz SDRAM DIMMs. Processors with 100-MHz FSB can only be paired with 100-MHz SDRAM DIMMS.

  • How do I install and secure a Pentium III or Pentium II processor on the Intel JN440BX Motherboard?

    The processor connects to the motherboard through the 242-contact slot connector. The Intel JN440BX Motherboard uses a single Retention Mechanism (RM) for securing the Pentium III and Pentium II processor into the 242-contact slot connector.

    Note: For more information about the single Retention Mechanism (RM), refer to the Pentium II processor support components web site.

  • What processor heat sink solution do I need for the Intel JN440BX Motherboard?
    It is recommended that an active (fan) heatsink be used with the processor for proper cooling.

    Caution: System cooling requirements vary depending on the particular system configuration, and it is the responsibility of the system designer/integrator to ensure that the Pentium II processor's maximum case temperature (at thermal plate) is not exceeded. For more details on the thermal considerations, refer to the JN440BX Technical Product Specification.

  • Are there any special jumpers related to the Pentium II processor selection?
    There is a single configuration jumper that puts the board into the configuration mode. All configuration options are then available through the BIOS configuration screen, including selection of CPU speed.

  • What are the concerns when integrating the Pentium II processor into an NLX chassis?
    Ensure that the chassis and the riser card are compliant with the NLX 1.2 specification. ? A thorough evaluation needs to be performed by the system integrator on the NLX chassis chosen. This includes mechanical, electrical, thermal, shock, vibration and EMI. The system integrator is responsible for ensuring that there is adequate air flow and cooling requirements for the processor and other components in the system.

  • Can the Intel JN440BX Motherboard be used in the same chassis as other Intel® motherboards?
    The Intel JN440BX Motherboard is a NLX platform ? and requires a chassis that is compliant with NLX 1.2 specification. To use the Intel JN440BX Motherboard in another chassis would require that the chassis meet the NLX 1.2 specification.

  • What is the Accelerated Graphics Port (AGP)?
    AGP (Accelerated Graphic Port) is a data bus that provides a high-speed channel to main memory. By providing high-bandwidth access to memory, AGP enables a new level of sophisticated graphics allowing software developers to create a richer, more inviting 3D environments with higher resolutions than before.

  • Does the JN440BX motherboard support Ultra DMA/33?
    Yes. The Intel JN440BX Motherboard is based on the 82443BX AGPSet with the PIIX4e, these components support Ultra DMA/33.

  • Do I need a special power supply for the Intel JN440BX Motherboard?
    The Intel JN440BX Motherboard requires a 3.3 volt power supply that complies with the NLX 1.2 specification. In order to utilize Wake on LAN* technology capabilities, the Intel JN440BX Motherboard also requires a soft off power supply that has at least 720mA of 5 volt standby current to keep the remote Wake on LAN circuit alive. See the NLX Power Supply Recommendation V1.1.

  • Why isn't there a power connector on my Intel JN440BX Motherboard?
    With the NLX form factor, the power to the motherboard is supplied through the riser card. This allows the easy removal of the "dockable" motherboard from the chassis. In fact, all power and data cables have been moved to the riser. Thus, an NLX ? 1.2 compliant riser is necessary to power the motherboard.

  • Where can I purchase an NLX compliant riser?
    A current list of suppliers is available on the NLX web Site ?, and is updated regularly. Keep in mind that the riser must be able to fit in the selected chassis which in many cases already has a riser built specifically for that chassis. It is the intent of chassis vendors to supply the riser that fits with their chassis and offer several design choices. For vendor-specific information, see the list of manufacturers participating in NLX Development ?.

  • How can the onboard audio be disabled?
    The onboard audio can be disabled using the BIOS Setup Utility. Select the Advanced menu, then the Peripheral Configuration screen. The menu will offer options to enable or disable the audio if it is present on the motherboard. Refer to your user's guide on the CD-ROM which ships with the product or the Technical Product Specification (TPS) for other setup options.

  • Does the JN440BX motherboard have USB Legacy support?
    Yes. USB legacy support enables USB keyboards and mice to be used although no operating system drivers are in place. By default, USB legacy support is disabled. USB Legacy support is for use in accessing BIOS Setup and the installation of a USB aware operating system only.

  • What type of AGP video card should be used with the Intel JN440BX Motherboard?
    The Intel JN440BX Motherboard supports half-length NLX form factor AGP cards. For information on the half-length form factor, check the current AGP interface specification ? and the associated Engineering Change Releases (ECRs).

  • Why doesn't my CD-ROM or second IDE hard drive work with Windows 95?
    There are two known issues involving CD-ROM or secondary hard drives: The retail version of Microsoft Windows 95 may not recognize the Intel® 82371AB PIIX4 IDE controller used on Intel motherboards, causing the BIOS to disable the secondary IDE channel. This can result in IDE devices (such as CD-ROM drives) not being detected or disappearing after the system is rebooted. A utility is available to update the MSHDC.INF file and resolve the issue. Windows 95 also may fail to recognize a CD-ROM drive that does not comply with the ATAPI specification. A technical advisory covers this issue for Intel motherboards using the 82371AB PIIX4 IDE controller.

  • Why does the Windows 95 device manager report a conflict with a "PCI standard PCI-to-PCI Bridge" and the AGP video controller?
    The "PCI standard PCI-to-PCI bridge" is really the "Intel® 82443BX Pentium II Processor to AGP Controller", which Windows 95 cannot properly identify. This issue will not affect the functionality of Windows 95, with AGP.

  • Does Intel® qualify memory for use on Intel motherboards?
    No. OEMs and system integrators are solely responsible for qualifying the memory that they include in their systems. Intel will perform only limited testing of a few memory modules to verify functionality of the motherboard's design. Intel does offer a program for 3rd parties to self-test their own memory and to report passing results to Intel for inclusion on our Internet based tested memory list.

  • Why is interrupt IRQ9 not available to assign to my ISA add-in card?
    IRQ9 is not available to ISA devices because it is dedicated to the power management function on the PIIX4 controller on the JN440BX motherboard. This is also true for other motherboards which utilize the PIIX4 controller.

  • Why is my IDE device is not being displayed during power-up POST?
    All IDE devices must be ATA4 compliant and cable length is limited approximately 15 inches for NLX formfactor motherboards and systems. The exact length is dependent on several factors including the layout of the riser card. Refer to the ATA4 specification for further details. The second cause may be that IDE devices that are not selected as auto detect in the BIOS setup are not displayed as part of the POST tests.

  • Can I use a second floppy on my Intel JN440BX Motherboard?
    No. The JN440BX uses a SMC 37B777 SIO component for the floppy support. The SMC component supports a single floppy device.

  • Why does the custom "User Logo", displayed at boot time, get erased when the BIOS is updated? & What is the procedure to reprogram the logo is when the BIOS is updated?
    The Phoenix BIOS is designed to always clear the user logo flash area when the BIOS is updated. There are several reasons for this requirement, some of which are related to flash security, manufacturing quality and service return processing.

    Some customers ship configured systems with their own identifying logo (displayed at boot time) installed during system integration in their factory. Once the system has been distributed to the field, it is possible that BIOS updates may be made available from Intel. Updating the system BIOS with only the files distributed by Intel will erase the logo.

    If a customer wants their "User Logo" to be maintained after updating the BIOS (i.e. at the field location), the logo area must be reprogrammed with the custom "User Logo", using the iflash utility. This can be accomplished automatically by executing the iflash utility from an autoexec.bat file on the update boot diskette after the BIOS is updated. The following AUTOEXEC.BAT will automatically update the BIOS followed by programming the "User Logo". The BIOS files and the user logo file must be present on the boot diskette during the update process.

    Note: Only the executable lines are required, user feedback is not mandatory. AUTOEXEC.BAT COMMENTS @echo off beep alerts user to activity in progress echo Programming system BIOS informs user BIOS is going to be updated iflash /P p03-0011.bio updates BIOS echo BIOS update complete informs user BIOS update complete echo echo Restoring Logo informs user Logo is going to be restored pause prompts user to continue iflash /p Logodata.usr programs "User Logo" echo Update complete informs user Update complete

  • Can I use 256MB DIMMs that contain 64 Mbit parts?
    The use of 256MB DIMMs that contain 64Mbit parts is not recommended and is not supported. 256MB DIMMs that use 64Mbit parts place higher electrical loads on the memory control signals. This can cause the motherboard to produce invalid timing signals which can cause unpredictable system behavior.

  • What type of AGP card is supported in the Intel JN440BX Motherboard?
    The JN440BX supports 1x and 2x transfer mode, NLX form factor AGP cards. 4x AGP cards should operate at 2x transfer speeds, however no 4x cards have been tested.

  • What EIDE transfer modes are supported on the Intel JN440BX Motherboard?
    The Intel JN440BX Motherboard supports Ultra DMA modes 0,1 and 2. Ultra DMA mode 2, also known as ATA-33 or Ultra DMA 33, is the highest speed transfer mode available. Please refer to the Technical Product Specification and the Motherboard Specification Update for more complete details on the various transfer modes.

 



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