Conexant: Windows XP Driver Information

Modem Driver Support & Information

Modem Support FAQs	Modem Driver Assistance
Modem Support Links	WinXP Driver Information
HSP Modem Support

Windows XP Driver Information

This modem support section provides you with answers to some commonly asked modem related questions with regards to the Microsoft Windows XP operating system.

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Windows XP FAQs
1.	Where can I get drivers for my Rockwell/Conexant HCF or HSF modem for Windows XP, or I am having difficulty installing my modem in Windows XP?
2.	When upgrading to Windows XP, I am asked if I want to connect to the Internet. Is it necessary to do this?
3.	After upgrading to Windows XP, my modem does not support speakerphone operation any more.
4.	When I upgrade to WinXP, my modem is detected as a Best Data Data/Fax Modem and it is not working properly.
5.	I have upgraded to Windows XP and my modem is NOT working, and is NOT detected as a Best Data Fax Modem.
6.	I have Upgraded to WinXP and my modem disconnects when playing CD's/DVD's or when transferring large files to/from CD drives. How do I fix this problem?
7.	Microsoft On-Line crash analysis determined that the event was caused by the V124NT.SYS module which is produced by Conexant. I'm unable to find an updated driver on Windows update or know which driver I should use on the Conexant Web site.

Answers to Windows XP FAQs
1.	Where can I get drivers for my Rockwell/Conexant HCF or HSF modem for Windows XP, or I am having difficulty installing my modem in Windows XP? Conexant has worked with Microsoft to ensure that many PCI modems are supported using a generic data/fax driver that is available on the XP distribution CD, therefore in the majority of cases your modem should automatically be detected and the generic driver correctly installed. Run the List Modem application (listmodem_app.zip) found on the Modem Driver Assistance page to find out if your modem is supported in the inbuild driver on WinXP. If the answer to "WinXp Inbuild Support" is yes, then your modem will work after upgrading to WinXP even when you run the compatibility test before upgrading and you get a warning. However the XP distribution CD does not have drivers for Conexant USB modems or modems that interface to the PC using the AC-Link bus. The AC-Link bus is primarily used in notebook PC's and some desktop PC's. In these cases it is necessary to download the correct driver from the manufacturer before upgrading to XP. If you get the message shown below and you have a notebook PC use the links below to obtain XP drivers. Example XP Error Message: If you do not have one of these PC's it means that the current driver that you are using in your previous operating system is not compatible with Windows XP, however if you have a PCI modem it is very likely that your modem will be supported by the driver available on the distribution CD and will work when you upgrade to Windows XP, and you should proceed with the upgrade. Links to OEM Drivers: Sony VAIO Systems Gateway Systems HP Dell Toshiba Legend Acer NEC Fujitsu TwinHead MaxData
2.	When upgrading to Windows XP, I am asked if I want to connect to the Internet. Is it necessary to do this? It is very important that you connect to the internet during the upgrade process so that the latest modem drivers and fixes are downloaded to your system. This could make the difference of having a functional modem or not after the upgrade.
3.	After upgrading to Windows XP, my modem does not support speakerphone operation any more. The modem drivers that are available on the XP distribution CD support Data/Fax operation only. You must contact your modem or PC manufacturer to obtain the full XP drivers for your particular hardware, a link to the many manufacturers sites are provided on this site.
4.	When I upgrade to WinXP, my modem is detected as a Best Data Data/Fax Modem and it is not working properly. Use the Check Modem Chipset documentation for the correct modem driver that is provided on the Modem Driver Assistance page to determine if your modem is an HCF or HSF modem. If your modem is an HCF modem it should work correctly with the Best Data driver, if it does not you have 2 choices. One choice is to go to the modem manufacturer (recommended) for their latest modem drivers. The second choice is to use the corresponding HCF Generic Modem Driver provided on the Modem Driver Assistance page. If you have an HSF modem, then please use driver "127A1025 HSF Drivers" below to upgrade your modem. The generic software offered here should be considered a stop-gap measure only. In all cases, Conexant urges you to contact the manufacturer for drivers or any technical support issues. Windows XP 127A1025 HSF Drivers Signed.exe (1,471KB) Netscape users: There are two ways to download the above file. 1. right click on the download link and choose "save link as..." 2. hold-down the shift-key, then click on the download link.
5.	I have upgraded to Windows XP and my modem is NOT working, and is NOT detected as a Best Data Fax Modem. Try upgrading the modem using the generic XP drivers available on the Modem Driver Assistance page or download drivers from the manufacturers site (recommended). Run the List Modem application (listmodem_app.zip) available on Modem Driver Assistance page to determine if your modem is an HCF or HSF modem. If all else fails, please email the "listmdm.log" file that is generated in the same directory to: modem.support@conexant.com. Please ensure the words "Listmodem_Results" remain within the subject of the email so that we may handle your situation appropriately.
6.	I have Upgraded to WinXP and my modem disconnects when playing CD's/DVD's or when transferring large files to/from CD drives. How do I fix this problem? The default settings for the secondary IDE channel in WindowsXP and early OS's is to use PIO mode instead of DMA mode which takes up too much CPU time and this causes the modem to disconnect. Note: In many OEM installed versions of XP and early OS's the default settings are already DMA mode, but if you have upgraded from an earlier OS the settings will be incorrect. To check or change the settings follow the steps below: WinXP/Win2K Go to the control panel and double click on the System Icon which brings up the system properties window At the top select the hardware tab and then click on the device manager button which brings up the device manager window Click on the "+" sign next to the Icon labeled "IDE ATA/ATAPI Controllers" Double click on the icon labeled "secondary IDE Channel" which brings up the IDE channel properties window Click on the Advanced settings tab at the top For Devices 0 and 1 make sure the transfer mode is set to "DMA if available" and then click on OK (see below) Click on OK again to close the System properties window
7.	Microsoft On-Line crash analysis determined that the event was caused by the V124NT.SYS module which is produced by Conexant. I'm unable to find an updated driver on Windows update or know which driver I should use on the Conexant Web site. If you purchased your PC new with Windows XP and the crash was a one off event and does not occur frequently then it may not be necessary to upgrade the driver, however if the crash occurs frequently a driver upgrade is recommended. If you upgraded to XP from a previous OS it is likely that you are using the in-box driver and an upgrade is also recommended. If you cannot find a new driver on Windows update, or your PC vendor or Modem vendors Website, you will need to download the HSF Generic Modem Drivers for WinXP and follow the instructions for upgrading.