Where can i download driver for sm bus controller? Windows 7 32-bit motherboard manufacturer-dell inc. Model-inspiron n5050 a05 chipset-intel sandy bridge southbridge-intel hm67. Report Abuse. Are you sure you want to delete this answer?

Hi Subash,

Welcome to Microsoft Community where you can find the answers related to Windows.

Based on the description provided, it looks like you are facing an issue with network controller, this issue might occur due to network drives are missing or corrupted.

Error Code 28: The drivers for this device are not installed.

A yellow exclamation point next to a device in Device Manager means that Windows has identified a problem of some kind with that device.

Yellow question mark in Device Manager appears as the full sized device icon and will appear when a device is detected but not installed.

I would suggest you to download and install the latest network drives and chipset drives from the manufactures’ website and check.

Dell Inspiron N5050 Sm Bus Controller Driver

Update a driver for hardware that isn't working properly: http://windows.microsoft.com/en-us/windows7/Update-a-driver-for-hardware-that-isnt-working-properly

Hope the information provided is helpful.

Dell N5050 Sm Bus Controller Driver Windows 10

If you need any other information about Windows, feel free to post your questions and we will be glad to help.