yikes
that's cheating,it doesn't boot more than 4.5/4.6 on ambient
the 5775c is very powerful, it's pretty much 7700k at 5ghz performance at 4.4/4.5ghz with much lower latency.
but still not at it's peak ,splave is egoist, doesn't want to share his asrock virus.
in theory should work on z170 too since is on 14nm and i'm 100% sure will work with ddr4,since the 8700k does with some mods.
made a thread here