This page requires Javascript. Europe, Middle East, Africa. See your browser’s documentation for specific instructions. Click Start , click Run , type dxdiag in the Open text box, and then press Enter. The Virtual Agent is currently unavailable. Javascript is disabled in this browser.

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The PCI ID Repository

See your browser’s documentation for specific instructions. Related links This table contains a few of the most common chipset manufacturers and their Web sites.

Open a Web browser window, and then navigate to a Web search page, such as Google or Yahoo. Asia Pacific and Oceania. After you upgrade or roll back your operating system, a yellow exclamation point displays next to SM Bus Controller in Windows Device Manager.

SMBus Controller Not Recognized by Windows*

Javascript is disabled in this browser. This page requires Javascript. Click Startclick Runtype dxdiag in the Open text box, and then press 12c2.


Check the Related Links section of this document for links to some of the most common chipset manufacturers’ Web sites. Europe, Middle East, Africa. A Cannot Install this Hardware message might also display. Follow the instructions to update the driver software.

Tell me what you’re looking for and I can help find solutions. When you upgrade or change Windows to another version, the drivers for the chipset might not install correctly. If the computer did not find or install the correct drivercontinue with the next step. Modify your browser’s settings to allow Javascript to execute.

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This document pertains to a problem with the driver for the SM Bus Controller. Support Forum Join the conversation! Click dxdiag or dxdiag. If you are looking for driver downloads, see Obtaining Software and Drivers. If these steps resolved the issueyou do not need to continue troubleshooting. Click Device Manager from the search results.

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Find Solutions, ask questions, and share advice with other HP product owners. How does HP install software and gather data? Please try again shortly.


Use the search results to go to the official Web page of 1c2 chipset manufacturer. Browse to the driver download page, and then follow the manufacturer’s instructions to download and install the drivers for your chipset.

Type the full name of your chipset in the search text field, and then press Enter. Chipset information in the DirectX Diagnostic Tool. Make sure that your computer is connected to the Internet. Restart the computer and perform these steps again.