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Last reply by 01-03-2023 Solved
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2 Bronze

SM Bus Controller driver

Hey all!  I have a XPS420 and I've got the yellow exclamation point next to "SM Bus Controller" in my device manager.  I downloaded the chipset driver and installed it but the exclamation is still there.  Do I need a different driver?  ANY help would be much appreciated!

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2 Bronze
2 Bronze

hardware ids.




Community Manager

* Go to the XPS 420 drivers page
* Look for Chipset
* Reinstall the Intel Chipset driver. When done, restart the XPS 420

Need further assistance? (In warranty systems only)
If the above troubleshooting steps do not resolve the issue, click the "Get Help Now" option at the bottom right to start a LIVE chat session. Ensure that you keep your PC/Monitor/accessory Service Tag available. If no Service Tag is found, have your Dell order number ready.

Where to find your Service Tag


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