Arctic LF2 280mm won't fit properly. Any suggestions?

[Mylestheone]

So, recently decided to build a new rig after getting a 3070. Ordered an Aorus Pro x570 mobo, arctic liquid freezer ii 280mm AIO and a corsair 4000d case, also ordered low profile ram so I thought I was set..............nope. Initial idea was to mount it to the top, problem is I can only screw in 6 out of 8 screws, since the rad is hitting what I think is a heatsink/cover where all the i/o ports are.

I can screw 4 in the middle and 2 near the front of the case, but can't screw in the two near the rear of the case. Do I go DIY and try to use zip ties to support the rear (it seems very sturdy without......but still)? Returning the case or changing the motherboard seem like a real hassle. Any ideas? thanks.

 

[Mylestheone]

Yeah I've tried the front but the radiator with fans was too thick with cables down. With cables up it doesn't go against the case unless I squash the front io cables up top to the point of probably breaking them. May just go zip ties and be done with it

 

[Mylestheone]

Because of the fat booty on the motherboard, with the aio installed first, I'm not able to align the motherboard with the mb standoff that's on the case.

If I push the radiator in, to the point that the front io cables are squashed, it fits at the top, but then the front two screws of the rad are hidden, which would result in the same thing but without screws at the front rather than the back