Safe i5 6600k Overclock?

[oStreamZo]

I have recently overclocked my i5 6600k CPU to 4.6GHz at 1.35 volts and it is currently not reaching anymore than 70C with a H100i v2 AIO Cooler. Is this a good overclock? if so what is? Thanks

 

[Tradesman1]

Sounds good

 

[oStreamZo]

Sounds good

Do you have an i5 6600k? If so what have you got urs oc'd to, what voltage and what temps have you got?
Thanks

 

[Tradesman1]

Mine is on a Hero, 4.7 1.3, idles in mid 20s, general load mid-high 60s (running ROG Real Bench)