I have also worked with the Arctic LF II.
Top should only get in the way if the mainboard has thick structures. But I didn't try it because I wanted the Radi as the Intake from the start.

I actually wanted to do side-intake. Unfortunately, this is not possible with the Arctic, unless you leave out the cover at the bottom front. Unfortunately, this looks relatively modest on the one hand and on the other hand it might not be very conducive to the airflow.
It's about 2-3 millimetres that the Arctic is too thick.

But the front intake is not a problem. The hoses downwards also work this way, but they do bump minimally against the bottom, but it's bearable. I have it mounted as a push, pull would give the hoses even more space but hm, I just found it somehow more chic that way.

I then have the classic side intake and top and rear exhausts.
Temperatures are wonderful this way and the PC is virtually inaudible except when gaming.

You can find pictures in my review here: https://www.digitec.ch/de...

can you really not attach any pictures here??? would still be good for a better understanding....

Hello
I have decided on a push/pull variant at the front for my system. This way, the RGB fans are clearly visible from the outside as well as from the inside. If you mount the radiator on the side, you can no longer attach fans at the front - especially if your radiator is rather thick, as you say. The other way round, however, is no problem.

My specs:
Front:
6x120x25mm push/pull
1x 360x30mm radiator (GPU&CPU)
Side:
3x 120x25mm intakes
Rear:
1x120x25mm outtake
Top:
2x140x25mm push
1x 280x30mm radiator (GPU&CPU)

Everything has enough space and temps of 12900k and 3090 are around 60 degrees at COD Warzone.

Hope that helps you...?