After you upgrade your Hewlett-Packard (HP) Pavilion
computer to Microsoft Windows XP, the modem may no longer work.
This behavior occurs if Windows XP is unable to detect the
modem. Specifically, this occurs when you upgrade certain models of the HP
Pavilion computer that are equipped with a modem based on the Rockwell chip
To work around this issue, use any of the following
Method 1: Install the Generic Modem Driver
- Uninstall the modem. To do this, follow these steps:
- Click Start, right-click My Computer, and then click Properties on the shortcut menu that appears.
- Click the Hardware tab, and then click Device Manager.
- Expand Modems, right-click the modem that is displayed, and then click Uninstall on the shortcut menu that appears.
- In the Confirm Device Removal dialog box, click OK.
- On the File menu, click Exit, and then click OK to close the System Properties dialog box.
- Insert the Windows XP CD-ROM into your computer's CD-ROM or
- Click Start, and then click Control Panel.
- Click Switch to Classic View if Classic
View is not already enabled.
- Double-click Phone and Modem Options,
click the Modems tab, and then click Add.
- Click to select the Don't detect my modem; I will
select it from a list check box, and then click Next.
- Click Standard 56000 bps Modem, and then
- Select the communications port that you want the modem to
use (select Communications Port 2 (COM2) if it is available),
and then click Next.
- Click Finish to complete the installation of the modem.
Method 2: Remove the Modem Before You Upgrade to Windows
Uninstall the modem before you upgrade your computer to Windows
XP. During Windows XP Setup, the modem will be detected and an appropriate
Method 3: Install a New Modem
If Windows XP is unable to detect the modem, you may need to
install a different modem.
information about how to contact computer hardware manufacturers, click the
appropriate article number in the following list to view the article in the
Microsoft Knowledge Base:
Hardware and Software Third-Party Vendor Contact List, A-K60781
Hardware and Software Third-Party Vendor Contact List, L-P60782
Hardware and Software Third-Party Vendor Contact List, Q-Z
Method 4: Installing the Windows 2000 Modem Driver from Hewlett Packard
The third-party contact information included in this article is
provided to help you find the technical support you need. This contact
information is subject to change without notice. Microsoft in no way guarantees
the accuracy of this third-party contact information.
to Windows XP, certain Hewlett Packard Pavilion models do not have a modem
driver installed. This has been identified on models 8495, 8595c, and the
The following device may appear under 'Other Devices' in Device
PCI Simple Communication Controller
There is a Windows 2000 driver available on the Hewlett Packard
website for the Riptide modem that may provide functionality for the system.
Download the Windows 2000 driver from the following Hewlett Packard Web site: NOTE
: This driver is for use with Windows 2000 only and is unsupported
by Hewlett Packard. For installations instructions please refer to the manual
provided by Microsoft for Windows 2000 driver installation available on the
- After the download completes, follow the instructions
provided on the Web site to extract the files to the default folder.
- Open Device Manager and double-click PCI Simple Communication
- On the Driver tab, click Update Driver and complete the Hardware Update Wizard, directing the Wizard to
the folder to which you extracted the driver. You may receive a prompt stating
that this driver has not been tested and is not certified as compatible with
Windows XP. Proceed with the installation of the driver.
- Restart the computer, and then test the modem.
Although many HP Pavilion computers meet the minimum system
requirements for Windows XP, you may want to determine if your model has been
tested for compatibility issues before you upgrade to Windows XP.
additional about this issue, browse to the following HP Web site:
provides third-party contact information to help you find technical support.
This contact information may change without notice. Microsoft does not
guarantee the accuracy of this third-party contact
The third-party products that are
discussed in this article are manufactured by companies that are independent of
Microsoft. Microsoft makes no warranty, implied or otherwise, regarding the
performance or reliability of these products.