good/safe oc voltage?

[Gvgd94]

http://i.imgur.com/Jle8a24.png

is this a good oc voltage for i5 3570k at 4,2ghz? im running prime now

 

[PiesangSkil]

It's fine, CPU VCORE under 1.3V is normally fine

 

[DubbleClick]

Vcore should be fine but your temps are raising a bit high.