Intel(R) Corporation

Intel® Desktop Board RC440BX

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Software and drivers
Bios and drivers

Product Documentation
icon Technical Product Specification
icon Specification Update

Compatibility
Supported processors

The Intel® RC440BX Motherboard supports front side bus speeds of 66MHz and 100MHz.

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 Internal Processor Speed Supported Notes
Pentium® III processor 600 MHz
550 MHz
Requires BIOS P10
or later

Supported only on these AA versions:
718163-208 or later
723888-205 or later
724299-205 or later

500 MHz Requires BIOS P06
or later

Supported only on these AA versions:
718163-208 or later
723888-205 or later
724299-205 or later

450 MHz Requires BIOS P06
or later

Pentium® II processor 450 MHz
400 MHz
350 MHz
333 MHz
300 MHz
266 MHz
233 MHz
 
Intel® Celeron® processor 433 MHz Requires BIOS P04 or later
400 MHz
366 MHz
333 MHz
300 MHz
266 MHz
 


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 IMPLIEDWARRANTY, RELATING TO SALE AND/OR USE OF THE INTEL PRODUCTS INCLUDING LIABILITY OR WARRANTIESRELATING TO FITNESS FOR A PARTICULAR PURPOSE, MERCHANTABILITY, OR INFRINGEMENT OF ANY PATENTCOPYRIGHT 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 6digit 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 two, dual inline memory module (DIMM) sockets. Minimum memory size is 16 MB; maximum memory size is 512 MB. The largest DIMM supported at this time is 256 MB unbuffered. The BIOS automatically detects memory type, size, and speed.

The motherboard supports the following memory features:

  • 168-pin DIMMs with gold-plated contacts
  • 66 MHz unbuffered SDRAM
  • Non-ECC (64-bit) memory and ECC (72-bit) memory
  • 3.3 V memory only
  • Unbuffered 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

Synchronous DRAM (SDRAM) can be installed in one or two sockets. EDO DIMMs are not supported. Memory size and speed can vary between sockets.

Note: Pentium II processors with 100 MHz front-side bus should be paired only with 100 MHz SDRAM. Processors with 66 MHz front-side bus can be paired with either 66 MHz or 100 MHz SDRAM.

All memory components and DIMMs used with the Intel® RC440BX Motherboard should comply with the PC SDRAM specifications. These include: the PC SDRAM Specification (memory component specific), the PC Unbuffered DIMM Specification and the PC Serial Presence Detect Specification.

Note: It is recommended that SPD memory DIMMs be used with the Intel RC440BX Motherboard. However, the BIOS will allow the use of non-SPD DIMM memory.

DIMM Vendors - Web Sites

The list below contains vendors that have tested their memory for Intel RC440BX Motherboards and that have their products listed on their own Web site. Please visit their sites to obtain information on their products.

DIMM Vendors - SDRAM Non-ECC DIMMs

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.

Vendor* Test Vendor Part Number
1M x 64 (8 MB), Unbuffered SDRAM,
Non-ECC - 100 MHz

None at this time.
   
1M x 64 (8 MB), Unbuffered SDRAM,
Non-ECC - 100 MHz

None at this time.
   
2M x 64 (16 MB), Unbuffered SDRAM,
Non-ECC - 66 MHz

None at this time.
   
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

None at this time.
   
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

None at this time.
Micron
Micron
Micron
Samsung
Samsung
 
 
 
FULL
FULL
FULL
FULL
FULL
 
 
 
MT8LSDT864AG-10CB4
MT8LSDT846AG-10EC7
MT9LSDT872AG-10EC7
KMM366S1724T-GL
KMM366S823DTS-GL
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
Micron
    FULL
FULL
    MT16LSDT1664AG-10CB4
MT16LSDT1664AG-10EC7
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 any non-ECC memory is installed, the Setup option for ECC configuration does not appear and ECC operation is not available.

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.

Vendor Test Vendor Part Number
2M x 72 (16 MB), Unbuffered SDRAM,
ECC - 100 MHz
None at this time.
   
4M x 72 (32 MB), Unbuffered SDRAM,
ECC - 100 MHz
None at this time.
   
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-10CB4
8M x 72 (64 MB), Unbuffered SDRAM,
ECC - 66 MHz
None at this time.
   
16M x 72 (128 MB), Unbuffered SDRAM,
ECC - 100 MHz
Samsung
FULL KMM374S1623DT-GL
16M x 72 (128 MB), Unbuffered SDRAM, ECC - 66 MHz
None at this time.
   


Installation and use
Last known issues

Latest BIOS and drivers
The BIOS identifier for this motherboard is 4R4CB0XA.86A. Check here for the current BIOS version and here for the current drivers.


Audio driver installation
Two issues are known: the drivers are too large for a floppy installation, and those provided on the Intel® RC440BX Motherboard CD-ROM may not install properly on a fresh installation of Windows* 95 or Windows* 98. for details.


Processors supported
The Intel® RC440BX Motherboard supports Pentium® III processors, Pentium® II processors and Intel® Celeron® processors via the 242-contact slot connector. Please see the additional information on supported processors.


Processor considerations
Several processor considerations must be observed to ensure the processor is properly cooled and secured to the motherboard.


Motherboard won't boot - power supply
If the power supply does not provide sufficient current, some system configurations with the motherboard may not power up.


Motherboard won't boot - BIOS settings
The system will not complete POST if you are using BIOS version 4R4CB0XA.86A.0009.P03, and both the Quiet Boot and Quick Boot options are Disabled. The failure to boot does not occur if either of the two settings is set to Enabled. Enabled is the default setting for both options. This issue is expected to be resolved in a future BIOS release.


Motherboard won't boot - repeating 6 beep error code
This beep code indicates that there was a problem during DRAM memory device detection. Check to ensure that system memory is properly installed. Also be sure that the DIMMs you are using are on the Intel RC440BX Motherboard tested memory list.


"SERIAL PRESENCE DETECT (SPD) device data missing or inconclusive."
This error message appears when non-SPD memory is detected during POST or the BIOS cannot determine SPD requirements.


Windows* 95 with CD-ROM or second hard drives
There are two known issues involving CD-ROM or secondary hard drives: The retail version of Microsoft Windows* 95 may not recognize the Intel® 82371EB PIIX4e 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.


IDE device not displayed during power-up
All IDE devices must be ATA4 compliant and the cable length is limited to 18 inches.


Second serial port
See the second external serial port instructions for advice on how to use the on-board header.


Conflict with PCI bridge and AGP video controller
A conflict with a "PCI standard PCI-to-PCI Bridge" and the AGP video controller in the Windows 95 Device Manager does not affect the functionality of AGP with Windows* 95. The "PCI standard PCI-to-PCI bridge" is actually the Intel® 82443LX Pentium® II processor to AGP Controller, which Windows 95 cannot properly identify.


IRQ9 not available
IRQ9 is not available to assign to ISA add-in cards, because it is dedicated to the power management function of the PIIX4E controller on the motherboard. This is true for other motherboards which use the 82371AB PIIX4E component.


Will my ATA-66 hard drive work on the Intel RC440BX Motherboard?
The IDE controller integrated into the Intel® RC440BX Motherboard supports Ultra DMA modes 0,1 and 2. Ultra DMA mode 2, also known as ATA-33 or Ultra DAM 33, is the highest speed transfer mode supported by the Intel® RC440BX 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® RC440BX Motherboard. Please refer to the Technical Product Specification and the Motherboard Specification Update for more complete details on the various transfer modes.



Additional information

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 this list of frequently asked questions:

Processor

Memory
ATX Chassis
Power Supply
Connectors/Jumpers
Video
Audio
Input/Output
Installation/Configuration
Frequently Asked Questions: Intel RC440BX Motherboard

Processor:

What processors are supported on the Intel RC440BX Motherboard?
The Intel RC440BX Motherboard supports a single Pentium® III, Pentium II or Intel® Celeron® processor. The host bus speed (66 MHz or 100 MHz) is automatically selected. The motherboard supports Pentium III processors with a 100 MHz host bus, Pentium® II processors with a 100 or 66 MHz host bus, and Intel® Celeron processors with a 66 MHz host bus. Processors with a 100 MHz host bus should be used only with 100 MHz SDRAM; the motherboard may not operate reliably if a processor with a 100 MHz host bus is paired with 66 MHz SDRAM. However, processors with a 66 MHz host bus can be used with either 66 MHz or 100 MHz SDRAM. The motherboard support the processors listed in the following table:

Processor Type Processor Speed Host Bus Frequency L2 Cache Size Package Type
Pentium® III processors 600 (see note)
550 (see note)
500 (see note)
450
100 MHz
100MHz
100 MHz
100 MHz
512 KB
512 KB
512 KB
512 KB
Single Edge Contact Cartridge
Pentium® II processors 233
266
300
333
350
400
450
66 MHz
66 MHz
66 MHz
66 MHz
100 MHz
100 MHz
100 MHz
512 KB
512 KB
512 KB
512 KB
512 KB
512 KB
512 KB
Single Edge Contact Cartridge
Intel® Celeron Processor 266
300
300A
333
366
400
433
66 MHz
66 MHz
66 MHz
66 MHz
66 MHz
66 MHz
66 MHz
None
None
128 KB
128 KB
128 KB
128 KB
128 KB
Single Edge Contact Cartridge

Note:The following are the product codes and AA numbers of the Intel RC440BX Motherboards that support Pentium III processors at 500 MHz and above. All other product codes support processors up through 450 MHz.
BIOS Version 4R4CB0XA.86A.0016.P10 or later is also required to support Pentium III processors at 550 MHz.
BIOS Version 4R4CB0XA.86A.0017.P11 or later is also required to support Pentium III processors at 600 MHz.

Product Code AA #
BERCMSTDK 718163-208 or later
BERCASTDK 723888-205 or later
BLKRC440BX 724299-205 or later

Additional Note:Conformity with FCC open chassis emission standards was verified with processor speeds up to 500 MHz, the highest processor speed available at the time the motherboard was introduced. Higher speed processors may increase system electromagnetic emissions. It is the responsibility of the system integrator to verify that a system based on this motherboard and any new higher speed processor complies with EMC emission standards.

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

How do I install and secure a Pentium II processor on the Intel RC440BX Motherboard?
The processor connects to the motherboard through the 242-contact slot connector. The Intel® RC440BX Motherboard uses a single Retention Mechanism (RM) for securing the Pentium® II processor into the 242-contact slot connector.

Note: For more information about the single Retention Mechanism (RM), refer to Pentium® II processor Support Components on Intel's web site.

What processor heat sink solution do I need for the Intel RC440BX Motherboard?
It is recommended that an active (fan) heatsink be used with the processor for proper cooling.

Note: For more information about heat sinks and other accessories, refer to Pentium II processor Support Components on Intel's web site.

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 Intel RC440BX Motherboard TPS (Technical Product Specification).

What processors not listed above are supported on the Intel® RC440BX Motherboard?
No other announced processors are supported on the Intel RC440BX Motherboard at this time.

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 affect the processor speed. Newer Intel processors boot with the ratio preset and tested during manufacturing.

Note: For more information about s-spec parameters (die stepping) and L2 cache support, refer to the Pentium® II processor Quick Reference Guide on Intel's Developer web site.

Memory:

What types of memory modules can I install on the Intel RC440BX Motherboard?
The Intel RC440BX Motherboard supports dynamic memory detection for one or two 3.3V, 168-pin (64 bit, 72 bit), 4 clock, 66Mhz or 100Mhz, unbuffered SDRAM DIMMs.

Note: The Intel RC440BX Motherboard BIOS will support SPD and non-SPD, 66Mhz and 100Mhz SDRAM DIMMs. To archive optimum performance, SDRAM DIMMs must meet SPD information requirements. SDRAM SPD information must be programmed by the memory manufacturer in accordance with the JEDEC MO-161 specification.

What memory configurations are supported on the Intel RC440BX Motherboard?
The Intel RC440BX Motherboard has two dual in-line memory module (DIMM) sockets that support SDRAM DIMMs. Memory can be installed in one or two of the DIMM sockets. Intel RC440BX Motherboard can support memory sizes of 16MB, or 32MB using 16Mbit technology, 32MB, 64MB, or 128MB using 64Mbit technology and 256MB using 128 Mbit technology. 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) may be paired with either 66-MHz or 100-MHz SDRAM DIMMs. Processors with 100-MHz FSB should only be paired with 100-MHz SDRAM DIMMS.

I get the message: "SERIAL PRESENCE DETECT (SPD) device data missing or inconclusive." when the system is booting. What does this mean?
The processor front side bus speed is automatically selected to support the internal processor speed of the processor installed in your system. If the processor installed supports a front side bus speed of 100MHz and if during POST, non-SPD memory is detected or the BIOS can not determine the memory installed meets SPD 100MHz requirements, the motherboard BIOS will display this message.

"SERIAL PRESENCE DETECT (SPD) device data missing or inconclusive." "Properly programmed SPD device data is required for reliable operation."

"Do you wish to attempt to boot at 100MHz bus speed?" "Y/N [Y] Type [N] to shut down"

Thereafter, while non-SPD memory remains present, the boot screen will display the following message:

"SERIAL PRESENCE DETECT (SPD) device data missing or inconclusive." "100MHz memory assumed."

Because SPD 100MHz memory may not be readily available in some geographies and because some operators may not have critical data integrity requirements, if SPD100MHz memory can not be confirmed during POST, the BIOS will provide this information to the user and offer the option to run the system with memory which may not meet full 100MHz operating requirements.

If the system will be used in a mission critical application (i.e. data integrity is critical), the system should be shut down and SPD 100MHz memory installed prior to operation.

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 should only be paired with 100-MHz SDRAM DIMMS.

What kind of problems might occur in an SDRAM-based system that uses non-compliant DIMMs?
The most extreme example of memory failure causes the system to hang while booting the operating system. This will happen because the system is not able to communicate properly with the memory. In less extreme cases, the memory may generate intermittent errors or fail during stress.

I am getting a repeating 6 beep error code and my motherboard does not boot or show any video. What does this mean?
This beep code indicates that there was a problem during DRAM memory device detection. Check to ensure system memory is properly installed, and ensure the DIMMs you are using are on the Intel RC440BX Motherboard motherboard tested memory list.

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.

What is SDRAM memory?
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.

Do all SDRAM DIMMs with an SPD EEPROM meet the 4-clock 66 MHz unbuffered SDRAM DIMM Specification?
No. The SPD device and data structure is only part of the specification. Although the SPD contains data that could be used in configuring the DIMMs into the motherboard, there is no way to determine if this data is valid.

ATX Chassis:

What is the difference between the ATX and the microATX (uATX) chassis?

Note: The following links will take you off of the Intel Web site. Intel does not control the content of these linked Web sites.

Full size ATX motherboards may be integrated with a chassis that complies with the ATX 2.01 or later specification.

The microATX specification was released in January 1998 and is a derivative of the ATX2.01 specification. The purpose behind drafting this specification was to provide a lower cost platform solution that was backward compatible to standard ATX2.01.

The microATX motherboard may be integrated into either a full size ATX or a microATX chassis that meets the ATX2.01 or later specification. The full size ATX motherboard may be integrated into a full size ATX chassis and may not be integrated into a microATX chassis. More detailed information on both the ATX and microATX chassis is available on their dedicated web sites at: http://www.formfactors.organd http://www.formfactors.org/developer/specs/microatx/microatx.htm. target=_blank

Note: A thorough evaluation needs to be performed by the system manufacturer on the ATX or microATX (uATX) chassis chosen. The system manufacturer is responsible for ensuring that there is adequate airflow and cooling for the processor.

Do I need a special chassis for microATX motherboards?
The microATX motherboards can be integrated into a micro tower chassis and powered by lower wattage power supplies. The microATX motherboards can also be integrated into the full ATX 2.01 (or later) compliant chassis.

Power Supply:

What special power supply requirements does the Intel RC440BX Motherboard have?
The Intel RC440BX Motherboard is designed to operate with at least a 145 Watt power supply for typical system configurations. A higher-wattage supply may be required for heavily-loaded configurations. The power supply must provide +5VSB (voltage stand by) with 720mA of current (see the ATX2.01 or later specification). If the power supply does not supply sufficient current, some system configurations with the Intel RC440BX Motherboard may not power up. Additionally, if the power supply can not supply sufficient current, and does not have overload protection, the power supply may be damaged.

What power supply requirements does the Intel RC440BX Motherboard have if a WOL (Wake on LAN*) capable Network Interface Card (NIC) is installed?
A power supply that provides at least 720mA on 5VSB must be used when building a WOL capable system.

If your power supply is not capable of meeting the 720 mA current requirement, your system may not power up. Also you could experience damage to your power supply if it does not have any over-current protection. Please contact your system integrator to see if your power supply meets the 720 mA current requirement.

If you are using a WOL capable NIC but are not using the WOL capability you can remove the cable from the NIC to the WOL header on the motherboard. This will prevent the NIC from drawing additional current from the 5VSB.

Connectors/Jumpers:

How should the jumpers be set on my Intel RC440BX Motherboard?
There is a single configuration jumper on the motherboard which is used to access configuration mode. All configuration options are then available through the BIOS configuration screen, including selection of CPU speed. (Refer to the Intel RC440BX Motherboard TPS (Technical Product Specification).)

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 PIIX4e controller on the Intel RC440BX Motherboard motherboard. This is also true for other motherboards which utilize the PIIX4e controller.

The Power LED is not working correctly on my Intel RC440BX Motherboard. What is the correct way to connect the front panel LED?
The Intel RC440BX Motherboard configuration label, shipped with the motherboard, has a printing error. The Power LED and Hard Drive LED were printed backwards. Refer to Section 1.15.3 of the TPS (Technical Product Specification) or the Front Panel Connectors of the Intel RC440BX Motherboard Connectors page to understand correct usage.

The Power LED cable in my chassis does not match the pinout on the Intel RC440BX Motherboard front panel header. What is the correct way to connect the front panel Power LED?
The Intel RC440BX Motherboard uses a 2x9 front panel header. Refer to Section 1.15.3 of the TPS (Technical Product Specification) or the Front Panel Connectors of the Intel RC440BX Motherboard Connectors page to understand correct usage.

Many chassis harnesses use a 3-pin connector, with the center pin removed, to connect a single color Power LED. The new front panel header on the Intel RC440BX Motherboard uses 2 adjacent pins to provide dual color LED functionality. The 3-pin connector must either be modified to use 2 adjacent pins (pin 2 as anode) or use an adapter (2 adjacent pin female to 3-pin male / center pin removed) to connect to the 2x9 header.

Video:

What are the key features of the nVidia Riva 128ZX AGP graphics solution used on Intel RC440BX Motherboard?
The nVidia Riva 128ZX AGP 2X graphics solution is integrated on the motherboard. The nVidia Riva 128ZX solution has 8MB of SDRAM on the motherboard to provide AGP 2x graphic performance. The Riva 128ZX 3D processor features an 8MB frame buffer and a 250MHz RAMDAC to support the storage of high quality 3D textures as well as drive the most extreme resolutions and color depths up to 1600x1200x32bpp.

What is the Accelerated Graphics Port (AGP)?
AGP is a dedicated graphics bus with higher bandwidth and which allows texturing from main memory which was not possible with the PCI Bus. By providing high-bandwidth access to memory, AGP enables a new level of sophisticated graphics allowing software developers to create richer, more inviting 3D environments with higher resolutions than ever before.

What is AGP 2X?
The PCI bus is a 32bit bus which runs at 33Mhz. Theoretically, the PCI bus can transfer 4 bytes per clock edge at 33MHz or 132MB/sec ideally. Due to bus efficiency overhead, the actual PCI bus transfer rate is somewhat less than the ideal maximum. The AGP bus is a 32bit bus which runs at 66MHz. The AGP bus can transfer 4 bytes per clock edge at 66MHz or 264MB/sec ideally. It easy to see why the APG bus is more than twice as fast as the PCI bus. Because the AGP bus is dedicated to the graphics controller, it is more efficient than the PCI bus, thus making the actual AGP transfer rate closer to the ideal maximum.

AGP 2X is an advancement in the graphics controller design which takes advantage of a 440BX chipset feature which allows AGP data to be clocked on both the rising and the falling edge of the 66MHz AGP bus clock. Thus AGP 2X is double clocking data effectively doubling the AGP data rate, hence AGP 2X or 528MB/sec ideally.

What benefits can I expect from the integrated nVidia Riva 128ZX AGP graphics solution on my Intel RC440BX Motherboard?
Some key benefits are:

  • The integrated nVidia Riva 128ZX AGP graphics solution on my Intel RC440BX Motherboard is a higher performance 2x (66MHz) AGP verses 1x (66MHz) AGP or 1x(33MHz) PCI bus.
  • AGP graphics results in substantial benefits when compared to alternative PCI solutions. A 2x AGP controller enables an effective transfer rate between the host controller and the graphic chip of up to 528 MB/s where PCI's maximum is 132 MB/s.
  • AGP Pipelining enables multiple data requests at a time.
  • For the home user, AGP provides improved texture rendering in 3D software, including games, entertainment, educational and digital imaging applications.
  • Business users will see smooth performance in 3D applications from CAD programs to sophisticated data visualization and web authoring tools.

Where can I get video drivers for my SCO or Unix operating systems?
Video driver support for the nVidia Riva 128ZX AGP 2X graphics solution integrated on the Intel RC440BX Motherboard is provided with the VBE (Vesa Bus Extensions) video drivers. These drivers are included with the SCO OpenServer 5.0.4 and SCO UnixWare 7.0 operating systems. There is no driver support for SunSoft Solaris 2.6 at this time.

I can't get the graphics drivers to install on my Windows NT 4.0 operating system. What could be wrong with the installation process on my Intel RC440BX Motherboard configuration running Windows NT 4.0?
The nVidia Riva 128ZX AGP 2X graphics drivers will install without issue on the above stated configuration running Windows NT 4.0. The standard operating system installation procedures are used, however Windows NT 4.0 must have Service Pack 3 (or later) installed before the video drivers can be installed.

Audio:

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 boxed product or the Intel RC440BX Motherboard TPS (Technical Product Specification) 71383201.PDF.

If audio is disabled, does the Intel RC440BX Motherboard consume fewer interrupts?
The Creative Sound Blaster* Audio PCI 64 audio solution uses two sharable interrupts. Enabling or Disabling the audio does not affect resource availability.

Is the Creative Sound Blaster* Audio PCI 64 audio solution PC98 Logo compliant?
Yes, the Creative Sound Blaster Audio PCI 64 audio solution on the Standard Intel RC440BX Motherboard platform is compliant to Microsoft PC97, PC98, the AC97 interface and Multimedia PC Level II and III specifications. The Intel RC440BX Motherboard reference platform will complete Microsoft PC98 testing with Test suite version 8.0 with all test results validated by Microsoft. Reference to the test results may be verified on the MS Web (URL is www.microsoft.com/hwtest) under Submission Status with Master ID 7680.

Is the Creative Sound Blaster Audio PCI 64 audio solution "full duplex"?
The Creative Sound Blaster Audio PCI 64 audio solution is capable of playing and recording at different sample rates simultaneously. The solution also meets PC97 & PC98 requirements to support videophone operation.

Is the Creative Sound Blaster Audio PCI 64 audio solution Sound Blaster and Sound Blaster Pro compatible?
Yes. Functionally, the Creative Sound Blaster Audio PCI 64 traps accesses to the Sound Blaster registers and issues appropriate IRQ or SERR commands on the PCI bus. The DMA functionality is handled in a similar fashion.

What is AC97 and why is it needed?
The AC97 (Audio Codec 1997) specification defines a high quality audio architecture which should advance the migration to digital audio while maintaining support for analog interconnects for backward compatibility.

Does the Intel RC440BX Motherboard support digital audio?
Yes, the Intel RC440BX Motherboard supports digital wave files and midi files.

Does this audio solution have a hardware wave table? Wave table add-on? Software wave table driver available in standard driver package?
The Creative Sound Blaster Audio PCI 64 audio solution provides a 64 voice polyphony software wave table audio solution (included in the driver package). Therefore, a hardware wave table add-on is not required. The software wave table is compatible with the Aureal API for 3D Positional Audio. Over 4000 sounds are stored in main memory.

What is the advantage of having the audio on the PCI bus over the ISA bus on the Intel RC440BX Motherboard?
ISA DMA memory cycles are replaced with more efficient PCI burst cycles. This allows high bandwidth 3D positional audio with better frame-rates while other PCI bus operations such as LAN, modem or PIIX4E also operate at higher rates. Additionally, the PCI bus requires less system resources and no dedicated resources as does the ISA bus.

How many channels or MIDI voices does this solution have?
The Creative Sound Blaster Audio PCI 64 audio solution provides a 64 voice polyphony wave table audio solution.

Are there drivers available for DOS, Windows 3.11, Windows NT 3.51, Windows NT 4.0, Windows 95 and now Windows 98?
Drivers are available on the Intel RC440BX Motherboard Web site for the Creative Sound Blaster Audio PCI 64 audio solution to support Windows NT 4.0, Windows 95, and Windows 98. The DOS drivers will be installed as part of the Windows 9x drivers. At this time, Intel does not plan to make audio drivers available for other operating systems.

Are there drivers available for OS/2?
Intel is not aware of available audio drivers for the Creative Sound Blaster Audio PCI 64 audio solution running with OS/2.

The Beta version 1127 audio drivers, provided on the Intel RC440BX Motherboard CDROM, don't load on my new system running the Window* 95 or Window* 98 operating systems. What is the correct procedure?
The Beta version 1127 audio drivers provided on the Intel RC440BX Motherboard CDROM have an issue that was discovered after the CDROM was shipped. The issue is caused by the method used to package the drivers for shipment on a CDROM and creates difficulty when loading the driver for the first time on a fresh installation of the Windows 95 or Windows 98 operating systems.

This issue has been corrected on a subsequent Beta version 1127 driver which is currently available on the Driver Update Site. The new driver is still a Beta version 1127 but fixes the above stated issue. Follow the directions provided in the readme file posted with the driver files to ease installation.

I get a "Windows protection error" at restart, after loading the Beta version 1127 audio drivers. What is the correct procedure for loading the drivers?
The Beta version 1127 audio drivers have a known issue where a "Windows protection error" is encountered during restart after re-loading the drivers, if the drivers had been loaded previously. The error can be ignored without consequence. The system can be restarted and permitted to complete loading the driver and all functions will work as expected. This issue will be fixed in a future driver revision.

Note: This issue is not encountered on the initial installation.

Does this audio solution have a hardware wave table, wave table add-on, or software wave table driver available in standard driver package?
The Creative Sound Blaster Audio PCI 64 audio solution provides a 64 voice polyphony software wave table audio solution with the standard driver, therefore a wave table add-on is not required. It is compatible with the Aureal API for 3D Positional Audio. Over 4000 sounds are stored in main memory.

Input/Output:

Does the Intel RC440BX Motherboard support UltraDMA drives under Windows 95?
Yes, the Intel RC440BX Motherboard supports DMA and Ultra DMA under Windows 95 OSR2. Consumers can obtain support with Windows 98. More information about Ultra DMA Protocol can be found at the PCIsets FAQ site.

Does the Intel RC440BX Motherboard have USB legacy support?
Yes. USB Legacy support is needed for the installation of USB aware operating systems when USB keyboards and mice are used. USB legacy support enables USB keyboards and mice to be used before the USB aware operating system drivers are in place (i.e. at boot time to access BIOS Setup). By default, the USB legacy support setup option is disabled. The USB Legacy support setup option may remain enabled after the installation of a USB aware operating system, however this is not required. USB Legacy support does not provide support for USB keyboards and mice with operating systems which do not provide USB support.

Installation/Configuration:

What type of battery is used in the Intel RC440BX Motherboard?
Standard (3 volt, CR3032) coin cell is used to supply power to the RTC when no power is available from the power supply.

How do I disable the onboard features?
The onboard features can be disabled through the motherboard BIOS Setup utility. For details, refer to the Intel RC440BX Motherboard TPS (Technical Product Specification).

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 boxed product or the Technical Product Specification for other setup options.

Why doesn't my Intel RC440BX Motherboard power-up?
The Intel RC440BX Motherboard requires 3.3 volts from the power supply. Additionally, there are some specific requirements for the power sequencing and limits. A momentary switch should be used for the power on/off switch and the sleep/resume switch. The power supply chosen must meet the ATX 2.01 (or later) specification.

Why are the drivers on Intel's public web site down revisions of those available on some vendor public web sites?
Intel performs internal testing on all drivers before they are posted on the Intel developer motherboard web site. In many cases, it is not practical to test all drivers on all motherboards. For this reason, application vendors may release drivers which 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 but it does indicate the drivers have not been validated by Intel.

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 82371EB PIIX4e 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.
  • Also, Windows 95 may fail to recognize a CD-ROM drive that does not comply with the ATAPI specification.

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 AGP Controller," which Windows 95 cannot properly identify. This issue will not affect the functionality of Windows 95, with AGP.

Why isn't my IDE device being displayed during power-up POST?
All IDE devices must be ATA4 compliant and cable length is limited to 18 inches. 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 RC440BX Motherboard?
No, the Intel RC440BX Motherboard uses a SMSC 37M707 SIO component to support the floppy disk controller. This component, and equivalent components, can support a single standard legacy type FDD, a 2.88MB Super I/O type FDD, or a three mode type FDD.

Why don't the beeps and the POST-codes on the Intel RC440BX Motherboard relate to the RC Motherboard Product Guide, on the CDROM, I received with by board?
The Intel RC440BX Motherboard Product Guide has an older set of Beep and Post-codes printed in error. Refer to Section 5 of the Intel RC440BX Motherboard TPS (Technical Product Specification) for the correct codes.

Is the Intel RC440BX Motherboard PC98 Logo compliant?
Yes, the Standard Intel RC440BX Motherboard platform is compliant to Microsoft PC97, PC98. The Intel RC440BX Motherboard reference platform will complete Microsoft PC98 testing with Test suite version 8.0 with all test results validated by Microsoft. Reference to the test results may be verified on the MS Web (URL is www.microsoft.com/hwtest) under Submission Status with Master ID 7680.

When the Intel RC440BX Motherboard is in Configuration Mode, setup shows the processor running at 200Mhz even when I set it to other speeds (i.e. 300Mhz, 333Mhz, etc.). Is something wrong with my motherboard or processor?
No, nothing is wrong with the motherboard or processor. When the motherboard is in Configuration Mode, the processor speed is locked at 200Mhz. This is true for all processors supported by the Intel RC440BX Motherboard unless the processor is locked at a specific speed (i.e.450Mhz) After setting the processor speed and exiting Configuration Mode, setup will show the correct processor speed and the processor will run at the correct speed setting.