Download the latest drivers for your lenovo lenovo g400 (20235). keep your computer up to date.. This page contains the list of device drivers for lenovo 3000 g400. to download the proper driver, first choose your operating system, then find your device name and click the download button.. Then i found a reference to thinkvanatge system updater, and that found drivers for all but the sm bus controller. so then i tried the automated chipset installer for many notebooks (including the t500) and many os's (including xp) that you liked to in your message..
G400 laptop (lenovo) please select. back windows 7 (64-bit). Use the links on this page to download the latest version of sm bus controller drivers. all drivers available for download have been scanned by antivirus program.. How to fix 'sm bus controller doesn't have a driver' problem in windows 7 64 bit operating system. are you getting yellow exclamation warning symbol over the sm bus controller shown under 'other.