Re: TR Ultra 120 Extreme
Your worry will most likely be the 'thickness'.
So in your case the 'depth' is about 500mm, the thickness being the dimension measured across the face of cd drivebay. Youwithme? The smallest dimension!
Thatis, of course, so long as your case is a tower.
anyway, since the Mobo lies against one of the walls in a tower, the thermalright with be pointing sideways- so its stuck to the CPU along one wall and is cantilevered out towards the other. So you might want to check the thermalright's dimensions against your case thickness, and make sure that it wont hit the far wall.
I haven't heard of any problems fitting one to the P35-DS3R, so I'm not sure how the dimensions of your Mobo differ, but as long as its near this, you shouldn't have any problems with the RAM getting in the way.