P45 Platinum - NB Drive Configure

Question

In the BIOS Cell Menu is one item that does not appear in the User Manual:
NB Drive Configuration  {May help memory strength when OC}
It is set to AUTO but has options for Drive Settings 1 throught to 4.
The explanation is not really clear as to what it is supposed to accomplish or what it is doing.
JacktN, I have to rely on your experience and hope that you have a better explanation than the BIOS description.

Answer 1

I am not very experienced with the practical effects of that option on the P45 Platinum (I never ran any systematic tests). 
However, as far as I understand it, those settings affect the "strength" at which the mainboard "drives" the memory data bus signals.  In theory, a higher drive strength means a "stronger" signal in effect, which can (theoretically) improve the system stability when there is a lot of memory load and/or the memory & memory controller is overclocked. [On the flip side, higher drive strength may increase electromagnetic interference, which may have negative effects on other parts of the system.]
Unfortunately, the fact the BIOS just allows us to choose between pre-configured Profiles, we do not really know what is actually set when we select any one of them. 
So the best thing would probably be to simply play around with those profiles to find out the actual effects @higher memory clock speeds (or with all four memory slots populated).