Is 65-71C too hot for a overcloked CPU?

BF4FAN

Honorable
Nov 26, 2013
133
0
10,690
My CPU is a i7 5930k, and it is overclocked to 4.5GHz from 3.5GHz stock. I also have a Corsair H100i GTX Liquid cooler, and when playing games usually at Ultra 4k my CPU jumps at 65-71C usually averaging 70-71C. Are these temps too high, and dangerous? Or is it fine? Also I heard that I should I re-apply my thermal paste? Last time I applied it was 8 months ago, and it was a high grade one. Just let me know what you guys think :D, thanks.