My case says 240mm AIO on top under the specs but it hit my ram so I had to install it on the front even though the specs say 280 and 360 on the front. I have a Corsair H100i.
I have five fans two on the front of the radiator blowing in and one on the back of the radiator on the bottom blowing in, one in the rear blowing out and one of the top back blowing out.