My 7700k runs ridiculously hot7

Hey, I recently built a computer, specs and photo here: http://imgur.com/0afMGMR The X62 is top mounted and the 3 case fans are in standard position In HWMONITOR though, I see temps of 70 degrees celsius after playing an hour of Rainbow Six Siege I am using Performance profile on CAM software, and cam has, several times, alerted me the CPU got hotter then 70 degrees “Potentially decreasing lifespan” My GPU however never exceeds 63 degrees celsius. I’m really worried and I don’t know what I should do, can anyone help me out? 70c will not decrease lifespan.