2500k Core speed dropping

[a03dugga]

Hey guys, have the 2500k OC @ 4.6Ghz.
I have disabled speed-step and c1e yet my core speed still keeps dropping when not on load.
I'm concerned to be frank, with how low I've seen the core voltage drop, I don't like it. What shall i do?

If it matters, i have an Asrock z68 E4 G3.

 

[a03dugga]

Alrighty Then. So shall i re-enable speed-step and c1e?

 

[a03dugga]

No i have that disabled. I don't fancy going over 4.6 to be honest. Cheers matey.