Ok it looks like you actually have an Asus mobo with an Intel chipset Michelle
So you need the drivers from here :
http://support.asus.com/download/download.aspx?SLanguage=en-usIgnore the first in the list but you need the second (part 1 ), the second (part 2) and the third (part 3).
Download all 3 zip files and extract them all into one folder then run CMI.part1.exe from that folder.
Make sure that you create a restore point for system restore before you install the drivers, in case it messes anything up, although I doubt it would cause any problems and if it did you could probably use the roll back feature for the drivers of the particular device that was having problems
Edited to add it wont go direct to the page I found
From the above link select Motherboard, then Socket 775 then PG5DC-V Deluxe then click on Search, then click on Drivers from the tabs at the top and that should take you to the page where you can follow my previous instructions