There is zero clearance between the top edge of the motherboard and the top of the case. The 8-pin power connector and the top row of latches on the DIMM slots are located and the top of the motherboard meaning you cannot install fans in the proper location above either of these areas. Just about all boards that I have looked at will have some sort of clearance issue with one of these two.
I ended up having to mount the top fans using the holes that are meant for the air to come through. Because of this the holes do not match up so I was only able to use 2 screws for each causing vibrations and my quiet fans (14db pushing 72CFM) are not so quiet now.
What Tt should have done was make the case an inch taller but leave that inch for fan installation.
Here are some pictures that I am using for a build log over on another forum.
This is with the fans installed in the correct location. The motherboard isn't even all the way up in these two shots.
Here is how the fans are now mounted.
Here is how things look on the inside.
Also the fan on the bottom of the case is too far back and I cannot install it in the proper location either because my power supply is there.
For a case from an enthusiast company like this they really didn't do their homework. It has soured me from ever using another Tt case. I should have gone with the NZXT Beta like I was going to. I know their cases are actually planned out.