I don't know what "Smart Turbo Boost" is, but it doesn't seem to be related to Intel's Tubro Boost specification. More specifically, the 3.8Ghz is what you should get based on a 2/3/4/4 bin list (for 4,3,2,1 cores loaded respectively). This seems to me like it's some sort of motherboard tweak. I know that Asus has a few at least.
Will it cause problems? It might, it might not. If your PC becomes unstable, disable it. If it doesn't, keep an eye on the thermals at least.