Yes you can. The only thing is that on many boards when you overclock the base frequency, you lose the TurboCore increases. That can mean that when your cpu was left alone it would use Turbocore mode to increase cpu Mhz to 4.0Ghz, when you manually set base clock to 3.6 not 3.1Ghz, your cpu may not employ Turbocore upclock anymore.
The issue with guessing if you would be better off at a "set" 3.6Ghz and not the lower 3.1Ghz is not known. We have no idea if your Turbocore was ever really kicking your speeds to 4.0Ghz or not. Nor do we know how often the Turbocore was kicking you up to 3.4Ghz the other possible clock.
So if your manual set to 3.6Ghz actually does not still allow Turbocore to do any acceleration would lose you any performance...well no way to know without you doing some benches with it set like it is now and then change it to what you ask about and bench again and use the results to determine if you are better or worse off at 3.6Ghz manual setting. About it really. Try and see what you get, since we cannot know the results.
RGone....ster. ________