Turns out, that last bit is wrong. The good news is that the build is on, the bad(ish) news is that the RGB sticks and cooler won't fit in together so the RAM loses and it's back to 4 x 8 non-RGB.I went for 4 x 8 as it was non-RGB and not as tall but as noted previously re the H100i, I can turn the lighting off, it leaves the other 2 slots free and the pipework shouldn't be a problem.