If I think the topic goes to another site. There are several options regarding voltages, which I have not wanted to touch due to ignorance, but I know people who have overclocked this micro to 4.0Ghz, and I have also seen tests on the internet with a P5K (with worse cooling than my P5KR) reaching 520 Mhz FSB, and I am still at 440Mhz, so there is margin, what is not known is exactly where I have to touch.
And to tell the truth, in my day to day and with the use I give to the computer, I think I also do not need more. You always get the curiosity to know the limit of this hardware configuration, but, I also do not want to risk damaging any of the components unnecessarily, so unless I see very clearly how to proceed, the OC will stay like this, which I think is already quite achieved considering that I am an amateur in these parts.
Goodbye, and thanks for the help. Agur