Frequently Asked Questions for Modem Chipsets

Last Reviewed: 19-Sep-2017
Article ID: 000007346

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Where can I get the latest drivers or installation files for my modem?Intel no longer provides generic drivers for modem chipsets. Contact the manufacturer to get drivers for your modem.
Where can I get support for my modem? Technical support requests need to be addressed to the manufacturer of the complete modem product (internal card or external assembly).
How do I find the manufacturer of my modem? The following recommendations are provided to help you identify the modem manufacturer:
  • Point of purchase or system manufacturer (internal modems) – this recommendation is the easiest way to identify the modem manufacturer.
  • Product packaging: Look for the manufacturer on the box the product came in.
  • Documentation: Look at the instructions or literature that came with your modem. If the modem is internal (inside your system), look for the system manufacturer.
  • The product markings can include the name of the manufacturer, or look for an FCC ID number or other number from a regulatory agency.
  • Regulatory agencies such as UL, CSA, or FCC database* or Equipment Authorization System can help, given a reference or certificate number.
  • Modem Properties – look in CMOS or BIOS information. The modem manufacturer can also be under Modem Properties displayed in System Information under Operating System Accessories or System Tools.
Note This method can result in identification of the chipset and not the actual modem manufacturer.
Where can I find drivers for the Intel 537? Contact your modem manufacturer or point of purchase for driver information. OEM developers looking for these drivers should contact their Intel representative. Reference drivers for this modem chipset are not available for end users, they are for OEM developers only.
Where can I find Windows* XP drivers for the MD5620? This product has reached End of Life. Intel no longer offers XP or any other new drivers for this product.
What should I do if my modem does not connect or frequently drops the line? Update your modem driver. Contact your modem manufacturer if you need to upgrade firmware for V.90 or V.92 speeds.
Where can I get an upgrade for my modem? Upgrading from V.90 to V.92 requires a firmware change, available only from the modem manufacturer.
My dial-up networking does not work after I installed new drivers for my modem. What should I do? After installing a new driver, create a connection by using the Make a New Connection in Dial-up Networking, and select your modem. Contact the modem or system manufacturer, Operating System vendor, or Internet provider for more assistance.
My 56K V.90 modem is not connecting at V.90 speeds. What should I do? Check to see if you have the latest drivers for your modem. Connecting at V.90 speeds also depends on phone line conditions. Make sure your phone lines can connect at V.90 speeds. Contact the local phone company for connection speeds they guarantee for your phone lines.
Where can I find jumper settings for my modem? The following are generic jumper settings for Intel reference designs used by some modem manufacturers. If it does not match your modem, contact your modem manufacturer.


COM Port IRQ Jumper Setting
1 4 5, 7, 11
2 3 1, 7, 9
3 4 3, 5, 11
4 3 1, 3, 9
Plug and Play --- 9-27
Where can I find an init string for my modem? The init string that you need depends on your application. The list below includes examples of common init strings and settings used for some applications. If these strings do not work, contact the provider of the application to see what type of setup is required.
  • Init String Examples:
  • Controller-based: AT &F E0 V1 W2 &D2 &C1 S0=0-C1
  • Alternate Controller-based: AT &F &C1 &D2 H0 %C0 W2
  • PCI-Based: AT&F E0 Q0 X4 S0=0 &D2 &C1 &S0 V1 W2
How do I disable V.90 and enable V.34 on my modem? To disable V.90 and enable V.34, try the following commands in the init string.
  • AT+MS=V34,1,0,0
  • AT+MS=V34,1,300,28800

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