The support page for your motherboard states that:
http://www.msi.com/product/mb/FM2-A55M-E33.html#/?div=CPUSupport
And if you don't read that, well there is the hard way knowing if its compatible and that is plugging it in realizing it wont work :lol:
So that FM2 board is not compatible for the FX-6100, you need AM3+
Edit: Ack, I'll just put up a prinscreen of the support page, it'll be easier for you.
As you can see, the FX-6100 is not listed, that is because it is not of the same socket type. As mentioned above, AM3+ boards is what you want and they NEED an updated bios version to support it.