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Lenovo thinkpad T420 installation problem


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7 replies to this topic

#1 reliKBORG

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Posted 07 March 2018 - 11:35 AM

Hello all, I just reinstalled Windows 7 pro sp1 onto my T420-4180 and am having an issue with missing drivers.  In device manager it tells me I am missing the SM Bus controller, I have installed all the drivers from Lenovo's support site yet it still shows the missing driver.  Does anyone have a suggestion on how to fix this?

 

Computer specs:

i5-2520m

8GB g.skill ram

Samsung 850 evo msata

ocz vertex 4 sata

HGST 1tb drive (in the caddy ultrabay)

intel 7260 wifi adapter

startech usb 3 expresscard



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#2 Allan

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Posted 07 March 2018 - 11:52 AM

You want to download and install the chipset driver.



#3 JohnC_21

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Posted 07 March 2018 - 11:54 AM

This is just the SMBus controller, correct? SMBus should have been part of the chipset driver downloads.

 

Download the Intel Driver Utility and let it search for your driver.

 

https://www.intel.com/content/www/us/en/support/detect.html

 

Allan beat me to it.  :)


Edited by JohnC_21, 07 March 2018 - 11:54 AM.


#4 reliKBORG

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Posted 07 March 2018 - 11:56 AM

You want to download and install the chipset driver.

I downloaded and installed the Intel Management Engine firmware and interface from Lenovos support site and it still shows the missing driver.



#5 reliKBORG

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Posted 07 March 2018 - 12:03 PM

This is just the SMBus controller, correct? SMBus should have been part of the chipset driver downloads.

 

Download the Intel Driver Utility and let it search for your driver.

 

https://www.intel.com/content/www/us/en/support/detect.html

 

Allan beat me to it.  :)

Well I tried that and got this IvIgxVQ.png



#6 JohnC_21

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Posted 07 March 2018 - 12:16 PM

Download and run the Intel INF Update Utility. Create a restore point first.

 

https://downloadcenter.intel.com/download/20018/INF-Update-Utility-Primarily-for-Intel-6-5-4-3-900-Series-Chipsets-Zip-Format?product=1145



#7 reliKBORG

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Posted 07 March 2018 - 01:03 PM

Tried the inf update utility and still nothing, so I ran snappy driver installer and whiz bang all fixed up, thanks for the attempt to help though!



#8 JohnC_21

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Posted 07 March 2018 - 01:06 PM

I don't usually recommend third party driver utilities but sometimes it's the only way to go. If I was going be using one it would be Snappy though.






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