There's no problem in creating a bit of "confusion", that's what the forum is here for!
To answer your question, the answer is yes. Installing a stick of RAM that is rated at faster than the maximum speed your motherboard allows will simply cause the RAM to slow down as to match the maximum speed your motherboard allows. Thus, installing 2000MHz RAM on your motherboard will make the RAM run at 1333MHz. Take the RAM oout and install it on a motherboard that supports 2000MHz and it will run at 2000MHz again. But, as I said before, 2000MHz is overkill. Get yourself a set of 1600MHz RAM sticks, and install them knowing that they will work well!