How to oc my base clock?

Hey guys,

I need help, I want to oc my cpu base clock. Atm it´s @100 mhz.
How far can i go with the bclk?
What role plays the voltage?

I can set it in the BIOS, but I also hear of software "amd overdrive". Is there anything for Win8? I try Desktop Control Center, doesn´t work @Win8.
Here my specs:

CPU i7 4770k
MB z87x-ud3h-cf
RAM Corsair Vegance Pro 1866
TEMP @standard >45° C stresstest
OS Win8

I thank you for your help and advice

You'll probably have to do that in the BIOS. Remember that it will increase the CPU speed when you do that, so you might have to lower the CPU multiplier depending on how far you push the BCLK.

And whats about the voltage?

Check out the haswell overclocking guide...