Such a statement as:...made me wonder!The Noctua NH-C12P actually fits perfect
Yes, it fits perfect because (a) you positioned your brackets on the left & right of the CPU, and (b) your case must be a lot larger and gives you more clearance above the top of the motherboard.
I have the Lian-Li Lancool K1 mid-tower, and if I position the C12P as you have it, it'll hit my Corsair 620HX, or the PSU tray. Here's my case but with my old Intel DX48BT2 board, with C12P installed:
I've grudgingly ordered a Noctua U12P, the height of that thing but on its side really puts me off, I'm worried about gravity pulling on the board, even with the SecuFirm retention mechanism. Regardless, it seems to be a well-regarded cooler. Thank you to cheapseats, I never knew there was a U12P.
Bookmarks