When you install the new drivers from the above location, they will replace the existing old drivers with the newer version.
Nevertheless, it would be a good idea if you wrote down the "existing" driver version so we can later compare with the new version.
Windows update usually is very good at "detecting" drivers and "offering" you to update but in some cases I have noticed that the updated driver "Offered" by Windows will make a system "Blue Screen".... It is very frequent....
Since you don't remember the source of the drivers, our best shot here is to start from the most logical beginning: the motherboard's manufacturer recommended drivers.
I hope this helps.
Bits ...