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You'll need the original widows cd for your board, or search some driver speciality websites that require you to register with them. http://driverplex.com/wp-content/uploads/2009/08/all-dr....
You can also use this chipset driver off nvidia's website: http://www.official-drivers.com/downloadcenter/nvidia-d.... Select the nforce 7 series; they may have a separate category for motherboard chipsets. Windows 7 may find enough drivers that you won't need the motherboard cd, but xp won't. Your lan chipset driver may be made by realtek, or nvidia; not sure which. Once you get the lan driver loaded, windows can search for some of the other drivers. http://www.newegg.com/Product/Product.aspx?Item=N82E168...