Ok couple of questions, about to start building today. I have a 750D case, are the standoffs already built into the case? as i seem to have only recieved 1 standoff. Also When should i install my h100i? straight away before i post, or when the mobo is in the case?
From memory Corsair tend to pre-install their standoffs but to check yourself.
I'd recommend installing the H100i from the beginning as cleaning thermal paste off is a pain in the face.
However if you don't have an extra pair of hands (yours or someone else) go with the stock cooler as installing the H100i and a motherboard into a case at the same time is damn near impossible on your own (The CLC is hard enough on your own). Don't forget to clean the old thermal paste before installing the H100i.