I am using a Hyper 212 EVO cooler in a Cooler Master Storm Trooper case. Do you think I can fit even the largest RAM sticks (Corsair Vengeance) on my motherboard? Or will the 212 prevent me from doing so?
I posted the links for the pictures - they illustrate the fan position (towards the RAM slots and towards the back I/O ports.
In the Z77 Extreme 4 you'll probably have to set the fan towards the RAM slots, and it will probably cover the first RAM slot.
You can find here the dimensions of the heatsink: http://www.xbitlabs.com/articles/coolers/display/cooler...
If you have the board, measure the distances.