Originally Posted by KevvinG
Hmm that's what I was afraid of
Yeah the FT03 is mATX, that's why I'm on the fence about it because not only does it cost double the XB but I'd also need a new mobo
Thanks! So since intaking air is ideal when it comes to the rads, I was thinking the dual 120mm in the front intaking, the single 120 in the rear intaking, and leaving the top fan out for positive air pressure in the case (I guess my logic is that the added pressure should squeeze out the air (along with dust) that's hanging around in the case, and hot air should rise out the vented top)
You're on the right track, but no i don't recommend that.
Even though you're planning on putting your CPU and GPU under water, you still have other components in there, your mobo & ram especially, that need airflow. The HAF in HAF XB stands for "High Air Flow".
The way the chassis is designed provides great airflow by intaking through the front and exhausting out the rear. So cool air comes in, blows across your motherboard, and quickly blows back out the rear. Unless you're doing a full custom loop with blocks on EVERYTHING, airflow is still an important factor. Anything aside from intaking through the front and exhausting out the rear is going against the grain. There's instances where changing things up can be helpful, but i wouldn't recommend it in your case. Stick with the design, front 240 intake, rear 120 exhaust. No top fan. And the bottom 80mm's are up to you, just know that it won't do anything for your upper level airflow