Ruben Cleenewerck :
My Titan X sli config does not work at 100% load in games (it does at 80-90% switching constantly). Is this normal??
Cpu 4930K at 4.4ghz
Ram g.skill 2400mhz 32gb (quad channel ram)
Sorry,you Can't. ever. Do a 100% gpu load.
you want smooth performance, when a gpu is hitting 100% you're running settings beyond the capabilities of the card or letting it run uncapped, which just leads to unnecessary heat. If you want more performance, then take the cpu speed up.
Hope I helped you in some or the other way.