Missing chipset driver

Hi,
I installed Windoze XP on my ThinkPad T500 but I am missing a driver.  I have an unknown device in Device Manager called "SM Bus Controller".  According to a Lenovo web page this refers to the Intel chipset, which is GM45.  However, no amount of googling seems to be able to turn up the missing driver.  Any advice is appreciated.
Solved!
Go to Solution.

Hi,
I would suggest not to search Google but use the forums search function.
You´ll get plenty of entries regarding SM-bus driver.
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