3 missing drivers

Hi guys, I am not supper experienced at his and need some help.
I have just done a clean install of win7 home premium 64bit, on a Gigabyte P2532N laptop.
Initially I was missing 6 drivers, I was able to work out 3 of them, to get internet connectivity and USB 3 working, from the Gigabyte web site. I can,t figure out which ones on the site apply to the other 3 that windows device manager has flagged as missing. They are as follows,
PCI simple communications controller.
PCI Data acquisition and signal processing controller.
SM Bus controller.
Any help with identifying which ones on the Gigabyte web site, apply to the ones above would be a great help.
thanks
 
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