ive got a 4790k at 4.6ghz, switched to 16gb earlier in the year, added my other 8 to get 24gb and just this week switched the 8 with 16gb to get 32gb total. (2133mhz)
works fine, no problems with anything.
For what reason did you need the ram?
been doing some 3d rendering - still goes over 32gb sometimes
i'm only playing for fun really and my cpu is fine for everything else, but 3d rendering sucks up every mhz i throw at it - i really need 64 threads instead of 8!
64 threads would be nice but on the desktop ill settle for my 32. TR3 might make me upgrade but im happy with this.