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Windows 7 beta on T400 question

Discussion in 'Lenovo' started by jiff777, Jan 16, 2009.

jiff777 Newbie

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I installed Windows 7 beta last night and have two problems in Device Manager. I am getting the yellow exclamtion for: 1) SM Bus Controller 2) PCI Simple Communications Controller. Also, my bluetooth is not showing up. I'm not sure if it is a result of SM Bus Controller. Also, I am assuming, we have to choose our video option in the Bios for now until the software is written to switch between the Intel integrated and ATI discrete. Thanks for any help.

jiff777, Jan 16, 2009

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njs8384 Notebook Enthusiast

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jiff777 -- don't have T400, but in general for the SM Bus Controller in Win 7 you need to download Intel chipset (or anything labeled "chipset") from Lenovo support site for T400 (select a Vista 32 or 64 bit driver, depending on your Win 7 installation). It needs to be installed manually. Run install -- it will fail in its final phase with a message indicating incompatibility! Click OK, but remember the directory where the Chipset files where extracted. Open the Device Manager, right-click on SM Bus Controller, select the Update Driver, and select the "non-automatic" ("browse my computer for software") option. Include subfolders in search and then simply point to the Chipset extraction folder. The controller will be installed with no problems.

njs8384, Jan 16, 2009

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