1. mf3k2k.exe Driver
2. README.TXT File Contents

README.TXT Driver File Contents (mf3k2k.exe)

    CBNDIS3 NDIS 3.1 miniport driver Configuration Reference
                       for Windows NT 3.51


* Parameters

   To overwrite the driver's default values,
   add or edit the following values in the Registry
   CB100<adapter_number> Parameters subtree by
   using the Registry Editor. The Registry Editor can be executed by
   typing "regedit" at Start-up menu -> Run, and press <return>.

            CacheLineSize = REG_DWORD { 32 | 64 | 128 }

                        32 bytes (default)
                        64 bytes
                        128 bytes

            InterruptMitigation = REG_DWORD  {0 | 1}

                        0  Disabled (default)
                        1  Enabled

                        Enable/disable the Interrupt Mitigation
                        algorithm.

            InterruptThreshold = REG_DWORD {value} (default: 500)

                        Maximum number of interrupt/second allowed before
                        the Receive and Transmit interrupts get masked.
                        Meaningfull only when InterruptMitigation is enabled.

            FrameThreshold = REG_DWORD {value} (default: 400)

                        Minimum number of processed frame/second allowed
                        before the Receive and Transmit interrupts get
                        unmasked.
                        Meaningfull only when InterruptMitigation is enabled.


            ReceiveBuffers = REG_DWORD {8..64} (default: 16)

                        Number of buffers allocated by the
                        driver in the Receive ring.

            UnderrunRetry = REG_DWORD  number_of_retries  (default=2)

                        Maximun number of retransmission attempts of
                        an underrun packet.

            UnderrunThreshold = REG_DWORD  number_of_underruns (default=10)  (21140 and 21143/2 only)

                        Maximun number of underrun occurences before the
                        controller switches to the next threshold value.

            BurstLength = REG_DWORD  { 0 | 1 | 2 | 4 | 8 | 16 | 32 }

                        0  unlimited
                        1  doubleword
                        2  doublewords
                        4  doublewords
                        8  doublewords
                       16  doublewords   (default)
                       32  doublewords 


            SnoozeMode = REG_DWORD { 0 | 1 }

                        0 Disabled (default)
                        1 Enabled

            StoreAndForward = REG_DWORD { 0 | 1 }  

                        Select the StoreAndForward mode if high
                        PCI latencies causes 100Mbps Transmit Underruns

                        1 Enabled
                        0 Disabled (default)

            TransmitThreshold = REG_DWORD { 72 | 96  | 128 | 160 }

                        Transmit Threshold values for 10Mbps media.

                        72 bytes
                        96 bytes (default)
                        128 bytes
                        160 bytes

            TransmitThreshold100 = REG_DWORD { 128 | 256 | 512 | 1024 }

                        Transmit Threshold values for 100Mbps media.
                        Meaningless when StoreAndForward is set

                        128 bytes
                        256 bytes
                        512 bytes (default)
                        1024 bytes

How To Update Drivers Manually

After your driver has been downloaded, follow these simple steps to install it.

• Expand the archive file (if the download file is in zip or rar format).

• If the expanded file has an .exe extension, double click it and follow the installation instructions.

• Otherwise, open Device Manager by right-clicking the Start menu and selecting Device Manager.

• Find the device and model you want to update in the device list.

• Double-click on it to open the Properties dialog box.

• From the Properties dialog box, select the Driver tab.

• Click the Update Driver button, then follow the instructions.

Very important: You must reboot your system to ensure that any driver updates have taken effect.

For more help, visit our Driver Support section for step-by-step videos on how to install drivers for every file type.