Intel(R) Corporation
Intel® Desktop Board CC820

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Software and drivers
Bios and drivers

Product Documentation
icon Technical Product Specification
icon Specification Update

Compatibility
Supported processors
The IntelŪ Desktop Board CC820 supports a single PentiumŪ III processor or PentiumŪ II processor. The system bus speed of 100 MHz or 133 MHz is automatically selected. The processor connects to the desktop board 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 desktop board's design. Use of unsupported processors may result in improper operation, damage to the desktop board or processor, or reduced product life.
Processor Family Processor Speed System Bus Frequency Cache Size BIOS Version
PentiumŪ III processor 733 MHz 133 MHz 256 KB P04 or greater
700 MHz 100 MHz 256 KB P04 or greater
667 MHz 133 MHz 256 KB P04 or greater
650 MHz 100 MHz 256 KB P04 or greater
600EB MHz 133 MHz 256 KB P04 or greater
600E MHz 100 MHz 256 KB P04 or greater
600B MHz 133 MHz 512 KB P04 or greater
600 MHz 100 MHz 512 KB P04 or greater
550E MHz 100 MHz 256 KB P04 or greater
550 MHz 100 MHz 512 KB P04 or greater
533EB MHz 133 MHz 256 KB P04 or greater
533B MHz 133 MHz 512 KB P04 or greater
500 MHz 100 MHz 512 KB P04 or greater
450 MHz 100 MHz 512 KB P04 or greater
PentiumŪ II processor 450 MHz 100 MHz 512 KB P04 or greater
400 MHz 100 MHz 512 KB P04 or greater
350 MHz 100 MHz 512 KB P04 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.



System memory

System Memory Combinations
The IntelŪ Desktop Board CC820 has two, dual inline memory module (DIMM) sockets. Minimum memory size is 32 MB; maximum memory size is 512 MB. The BIOS automatically detects memory type, size, and speed. A Memory Translator Hub (MTH) is used to translate the Rambus* channel of the IntelŪ 820 chipset to SDRAM memory.

The motherboard supports the following memory features:
  • 168-pin SDRAM DIMMs with gold-plated contacts
  • 100 MHz SDRAM (only)
  • Non-ECC (64-bit) memory
  • 64 Mbit and 128 Mbit SDRAM component density (see table below)
  • 3.3 V memory (only)
  • Serial Presence Detect (SPD) memory (only)
  • Non-ECC and ECC DIMMs (ECC DIMMs will operate in non-ECC mode only)
  • Unbuffered Single- or double-sided DIMMs in the following sizes:

Supported DIMM Sizes and Configurations (non-ECC specified)
DIMM Size Total Number of SDRAM Components on DIMM Non-ECC DIMM Organization SDRAM Component Density SDRAM Component Organization
32 MB 4 4M x 64 64 Mbit 4M x 16
64 MB 8 8M x 64 64 Mbit 8M x 8
64 MB 8 (double sided) 8M x 64 64 Mbit 4M x 16
64 MB 4 8M x 64 128 Mbit 8M x 16
128 MB 16 (double sided) 16M x 64 64 Mbit 8M x 8
128 MB 8 16M x 64 128 Mbit 16M x 8
128 MB 8 (double sided) 16M x 64 128 Mbit 16M x 8
256 MB 16 (double sided) 32M x 64 128 Mbit 16M x 8
Important Note The Intel Desktop Board CC820 will not accept all DIMM configurations. DIMMs must be installed using the DIMM configuration guidelines. When installing DIMMs in the Intel Desktop Board CC820, you must use the memory installation guidelines as described in the following table.


Due to the demands of today's software applications, a minimum of 64 MB of system memory is recommended.

DIMM Installation Guidelines
Types of DIMMs to be installed Bank 0 Bank 1
One DIMM DIMM Empty
Two DIMMs - Same size, same number of sides (both single or both double sided) Either DIMM Either DIMM
Two DIMMs - Different sizes Larger DIMM Smaller DIMM
Two DIMMs - Same size, one is single-sided and one is double-sided Single-sided DIMM Double-sided DIMM


All memory components and DIMMs used with the Intel Desktop Board CC820 must comply with the PC SDRAM Unbuffered DIMM Specification. You can access this document through the Internet at:
http://www.intel.com/technology/memory/index.htm

DIMM Vendors - SDRAM Non-ECC DIMMs
The table below lists parts which passed either BASIC or FULL testing conducted by third-party memory vendors for the Intel Desktop Board CC820. These part numbers will be removed and replaced by Intel FULL tested part numbers approximately one week after the IntelŪ Desktop Board CC820 is released. After the part numbers are removed, parts tested by third-party DIMM vendors can be found under the list of "DIMM Vendors - Web Sites" section above.

Vendor Test Vendor Part Number Comments
2M x 64 (16 MB), Unbuffered SDRAM, Non-ECC - 100 MHz
None at this time.
4M x 64 (32 MB), Unbuffered SDRAM, Non-ECC - 100 MHz
None at this time.
8M x 64 (64 MB), Unbuffered SDRAM, Non-ECC - 100 MHz
None at this time.
16M x 64 (128 MB), Unbuffered SDRAM, Non-ECC - 100 MHz
None at this time.
32M x 64 (256 MB), Unbuffered SDRAM, Non-ECC - 100 MHz
None at this time.


DIMM configuration guidelines

The IntelŪ Desktop Board CC820 will not accept all DIMM configurations.

When installing DIMMs in the Intel Desktop Board CC820, you must use the memory installation guidelines as described in the following table:
Types of DIMMs to be installed Bank 0 Bank 1
One DIMM DIMM (Empty)
Two DIMMs: Same size, same number of sides
(both single or double-sided)		 Either DIMM Either DIMM
Two DIMMs: Different sizes Larger DIMM Smaller DIMM
Two DIMMs: Same size, one is single-sided
one is double-sided		 Single-sided DIMM Double-sided DIMM


Installation and use
Last known issues

BIOS and drivers
The BIOS identifier for this motherboard is CC82010A.86A. The current BIOS version and current drivers for the IntelŪ Desktop Board CC820 are found on developer.intel.com.

Processors supported
The Intel Desktop Board CC820 supports the PentiumŪ III and PentiumŪ II processors of 242-contact slot type running at bus speeds of 100 MHz or 133 MHz. See supported processors for additional information.

COM Port Issues
Several issues that were seen in BIOS version P04 have been corrected in versions P06 and later. Upgrade your BIOS to resolve these issues.

System Memory
The Intel Desktop Board CC820 supports two 3.3V, 168-pin, 100 MHz, unbuffered Dual In-Line memory Modules (DIMMs) operating in non-ECC.

Memory with 133 MHz System Memory Bus (SMB) processor
The IntelŪ Desktop Board CC820 supports only 100 MHz memory. A Memory Translator Hub (MTH) detaches SDRAM bus from the Host Bus allowing these two buses to operate independently and at different frequencies.

The SDRAM bus operates at 100 MHz. The Host Bus (also known as the System Memory Bus or SMB) operates at either 100 MHz or 133 MHz depending on which processor is used.

DIMM installation guidelines
The Intel Desktop Board CC820 will not accept all DIMM configurations. DIMMs must be installed using the DIMM configuration guidelines.

IntelŪ Desktop Board CC820 will not power up-66 MHz host bus processor
If a 66 MHz bus processor is installed in a Intel Desktop Board CC820 it will not boot. The Intel Desktop Board CC820 does not support a 66 MHz bus. See supported processors for additional information.

AGP support
The Intel Desktop Board CC820 supports new AGP cards which comply to AGP specification 2.0 and provides backwards compatibility for cards based on AGP specification 1.0. The CC820 has a universal AGP socket which can accept 1X / 2X cards operating at 3.3 V or 1X / 2X / 4X cards operating at 1.5V.

Ultra ATA/66 support
The Intel Desktop Board CC820's onboard IDE channels support Ultra ATA/66 transfer mode.

Second floppy drive not supported
The Intel Desktop Board CC820 does not support a second floppy drive.

Windows* 95 reports resource conflict with add-in cards and onboard PCI devices in Device Manager
Windows* 95 Device Manager reports a conflict with a "IntelŪ 82820 Processor to AGP controller" for AGP cards. For PCI cards and onboard PCI devices, Windows 95 Device Manager reports a conflict with a "IntelŪ 82801AA PCI Bridge." "IntelŪ 82820 Processor to AGP controller" and "IntelŪ 82801AA PCI Bridge" are both components of IntelŪ 82820 chipset which Windows* 95 cannot properly identify. This issue will not affect the functionality of Windows* 95 with AGP or PCI devices.


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 the Intel FAQ for that product.

General Questions:

Memory: Suspend to RAM and Power Supplies: Jumpers/BIOS Setup Options: On-board Audio: Input/Output:
General Questions:
  • Why does my COM port not work?
    Several issues affecting the COM ports were discovered in BIOS versions prior to P06. To resolve these issues upgrade the BIOS to P06 or later. The latest BIOS can be found on the support.intel.com site.

  • Which processors does the IntelŪ Desktop Board CC820 support?
    See the Processor Support Table for details.

  • Does the Intel Desktop Board CC820 support processors in the SECC package?
    Yes. The IntelŪ Desktop Board CC820 supports IntelŪ Pentium II processors in the 242-contact slot connector, SECC package with a bus speed of 100 MHz. However, the boxed CC820 ships with a processor retention mechanism that supports the SECC2 package. An alternative processor retention mechanism can be used to support processors in the SECC package.

  • What processor heat sink solution do I need for the IntelŪ Desktop Board CC820?
    It is recommended that a heat sink is used that is large enough for sufficient cooling of the processor. Active heat sinks require less room and mass than the passive heat sinks.

    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 IntelŪ Desktop Board CC820 Technical Product Specification (TPS) and the Intel Desktop Board CC820 Specification Update (DBSU).


  • How do I install and secure a PentiumŪ III processor or Pentium II processor on the IntelŪ Desktop Board CC820?
    The processor connects to the desktop board through the 242-contact slot connector. The Intel Desktop Board CC820 uses a single Retention Mechanism (RM) for securing the Pentium III processor or Pentium II processor into the 242-contact slot connector.

    Caution The retention mechanism that is included with the boxed desktop board does not provide support for the additional mass of the heat sink. Boxed processors include the additional support mechanism for the heat sink included on these processors.


  • What type of AGP cards can I use on the IntelŪ Desktop Board CC820?
    The Intel Desktop Board CC820 supports operation of AGP 1.0 and AGP 2.0 cards operating at 1x, 2x and 4x transfer speeds. The Intel Desktop Board CC820 has a universal connector which accepts AGP cards which are keyed for 1x / 2x or 4x.

  • Can I use an AGP card retention mechanism with any AGP card?
    The AGP retention mechanism is made for use with newer AGP cards that meet the AGP 2.0 specification. These newer cards have a special slot at the back of the card, which interlocks with a small plastic stud on the retention mechanism. Cards that don't meet the new 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.

  • My Intel Desktop Board CC820 does not boot, what could be wrong?
    Make sure that the processor has a bus speed of 100 or 133 MHz rather than 66 MHz. A hardware lockout is provided so that if such a 66 MHz bus processor is installed, the Intel Desktop Board CC820 board will not power-up.

  • What type of chassis and power supply does the Intel Desktop Board CC820 use?
    The Intel Desktop Board CC820 is an ATX form factor board. The board requires an ATX 2.01 compliant chassis and power supply. For information on the ATX form factor see the ATX form factor website*.

  • What type of battery is used in the Intel Desktop Board CC820?
    Standard (3 volt, CR2032) coin cell is used to supply power to the RTC when power is not available from the power supply.

  • How do I disable the onboard features?
    Onboard features can be disabled through the Intel Desktop Board CC820 BIOS Setup utility. Refer to the Intel Desktop Board CC820 TPS (Technical Product Specification) for more details.

  • Why doesn't my Intel Desktop Board CC820 system power-up?
    The Intel Desktop Board CC820 requires 3.3 volts from the power supply, as well as specific requirements for 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. In addition the Intel Desktop Board CC820 requires larger currents of 5 VSB to support the new features of the desktop board. Please refer to the Technical Product Specification and the Monthly Specification Updates for more complete information.

  • Why do the drivers on Intel's public web site appear not to match revisions of the drivers 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. In some case the drivers, on a non-Intel site, correct implementation issues that are not found on the Intel desktop board.

  • Why does the Windows* 95 device manager report a resource conflict with my add-in card and onboard PCI devices?
    Windows* 95 device manager reports a conflict with a "IntelŪ 82820 Processor to AGP controller" for AGP cards. For PCI cards and onboard PCI devices the Windows 95 device manager reports a conflict with a "IntelŪ 82801AA PCI Bridge". The "IntelŪ 82820 Processor to AGP controller" and the "IntelŪ 82801AA PCI Bridge" are both components of the IntelŪ 82820 chipset which Windows 95 cannot properly identify. This issue will not affect the functionality of Windows 95, with AGP or PCI devices.
Memory:
  • What types of memory modules can I install on the IntelŪ Desktop Board CC820?
    The Intel Desktop Board CC820 supports dynamic memory detection for one or two 3.3V, 168-pin (64 bit, 72 bit), 4 clock, 100Mhz, unbuffered SDRAM DIMMs, using 64Mbit or 128 Mbit technology with properly programmed Serial Presence Detect (SPD). Due to the demands of today. s software applications, a minimum of 64 MB of system memory is recommended.

    Caution To be fully compliant with all applicable Intel SDRAM memory specifications, the CC820 desktop board requires DIMMs that support the Serial Presence Detect (SPD) data structure.


  • What memory configurations are supported on the IntelŪ Desktop Board CC820?
    The Intel Desktop Board CC820 has two Dual In-line Memory Module (DIMM) sockets that support 100 MHz SDRAM DIMMs. CC820 can support memory sizes of 32MB, 64MB, 128MB and 256MB using 64Mbit and 128 Mbit technology. The CC820 board requires supported DIMMs be installed under the guidelines listed below:
    • If you have one DIMM, install it in Bank 0 (the memory slot closest to the processor). If only one DIMM is installed in Bank 1, the system will still boot, however STR will not work.
    • If you have two identical DIMMs (same size, same number of sides, both single-sided or both double-sided), install them in either bank 0 or bank 1.
    • If you have two DIMMs of different sizes (e.g., a 64 MB and 128 MB DIMM), install the larger DIMM in Bank 0, and the smaller DIMM in Bank 1.
    • If you have two DIMMs of the same size and one is single-sided and one is double-sided, install the single-sided DIMM in Bank 0 and the double-sided DIMM in bank 1.

    The following table summarizes these guidelines:
    Types of DIMMs to be installed BANK 0 BANK 1
    One DIMM DIMM (Empty)
    Two DIMMs - Same size, same number of sides (both single or both double-sided) Either DIMM Either DIMM
    Two DIMMs - Different Sizes Larger DIMM Smaller DIMM
    Two DIMMs - Same size, one is single-sided and one is double sided Single-sided DIMM Double-sided DIMM


  • I am getting a repeating 6 beep error code and my desktop board 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 Desktop Board CC820 tested memory list.

  • Do I also need 133 MHz memory if I install a 133 MHz FSB processor?
    No. The Intel Desktop Board CC820 supports only 100Mhz memory. A Memory Translator Hub (MTH) detaches the SDRAM bus from the Host Bus allowing these two buses to operate independently and at different frequencies. The SDRAM bus operates at 100 MHz. The Host bus (A.K.A. Front Side Bus - FSB) operates at either 100 MHz or 133 MHz depending on which processor is used. Figure 2, page 15 of the technical product specification (TPS) has a block diagram which illustrates this.

  • What speed memory should I install in the Intel Desktop Board CC820?
    The SDRAM installed should be 100 MHz memory. The Intel Desktop Board CC820 board does not support the operation of SDRAM at 133MHz.


Suspend to RAM and Power Supplies:
  • What is Suspend-to-RAM?
    Suspend to RAM (STR) is a technology that is closely associated with the S3 state of the ACPI specification. STR allows a properly configured system to go into a low power state while saving information to main memory about the system's configuration, open applications, and active files. While in the low power (STR) 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 and to minimize power consumption. Properly configured systems in STR typically can use less than 5 watts.

    The system can be left in the STR State and can be awakened periodically to perform preprogrammed events such as downloading e-mail or searching and filtering web content. A network access or 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 in a few seconds by using the information saved in memory to restore the system.

    Note If power is interrupted while the system is in STR the system will reboot normally, when power is restored. All data that has not been stored prior to STR will be lost.


  • What is a "wake device"?
    Any device, which is capable of waking the system from the STR State is a wake device. A wake device is typically a network card or a fax/modem that is compliant with the PCI 2.2 specification. When the system is powered down into the STR State, these wake devices are provided standby current by the power supply. These devices are in a low power state, during STR, and use only enough current to recognize incoming activity (e.g. a network request or a phone call). When an incoming activity is detected, these devices can wake the system.

  • Do I need a special power supply to support Suspend to RAM? How much standby current should my power supply be able to supply in order to support Suspend to RAM?
    The power supply used must provide enough standby current to support the needs of all wake capable devices in the system. For proper system operation, the power supply must provide at least that amount of standby current used by the desktop board devices and all externally connected wake devices. This includes both components on the IntelŪ Desktop Board CC820, non-self powered USB devices and your add-in cards. To calculate this amount add up the amount of standby current required by the various components which can wake the system from the ACPI S3 (STR) state. For further detail on how to determine the necessary stand by current, consult the Intel Desktop Board CC820 TPS and the Intel Desktop Board CC820 DBSU.
Jumpers/BIOS Setup Options:
  • Why can't I find speed settings in my BIOS configuration mode?
    Newer Intel processors are manufactured and operate at a preset speed. The speed setting for these processors is not changeable and there will be no options to set processor speed in the BIOS setup configuration mode.

  • How should the jumpers be set on my Intel Desktop Board CC820?
    A single configuration jumper on the Intel Desktop Board CC820 is used to access configuration mode. All configuration options are made available through the BIOS configuration screens. Refer to the Intel Desktop Board CC820 configuration jumpers for information on configuration jumper settings.
On-board Audio: Input/Output:
  • Does the Intel Desktop Board CC820 support Ultra ATA/66 hard drives?
    Yes. One of the new features of the Intel 820 chipset is its ability to support both Ultra ATA transfer rates of 33 MB/sec and 66 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, such as 2 MB, to take advantage of the increased bandwidth available on the IDE channel.

  • Does the IDE cable provided with the IntelŪ Desktop Board CC820 support both Ultra ATA/66 and previous IDE transfer protocols?
    The 40-pin, 80-conductor cable provided with the Intel Desktop Board CC820 is fully backward compatible with all IDE transfer protocols. It will also support Ultra ATA/66 if used with one or two Ultra ATA/66 drives attached. If a drive using a previous IDE transfer protocol is attached to the provided cable, the maximum transfer protocol available to either drive on the cable will be UDMA33. If integrating a system with a combination of Ultra ATA/66 drives and IDE drives using previous transfer protocol, it is recommended that the Ultra ATA/66 drives be attached to the primary IDE channel using the provided cable. The other drives should be attached to the secondary channel using a good quality, 40-connector IDE cable, which is not provided with the Intel Desktop Board CC820.

  • Why doesn't my CD-ROM or second IDE hard drive work with Windows* 95?
    Two known issues involve CD-ROM or secondary hard drives: 1) Older versions of Windows* 95 or Windows* 98 may not correctly recognize the IntelŪ 82801AA ICH IDE controller used on Intel desktop boards, 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. As a temporary work-around, the CD-ROM can be installed on the primary IDE channel until the INF update utility has been run. 2) Windows* 95 or Windows* 98 may fail to recognize a CD-ROM drive that does not comply with the ATAPI specification.

  • 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 on my IntelŪ Desktop Board CC820?
    The Intel Desktop Board CC820 does not provide support for a second floppy device.




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