question about voltages

[eagle5968]

when i up the cpu host freq up by 10mhz starting from 21x150, how do i know in what increments to raise : cpu vcore, cpu vtt, cpu pll, dimm volt, qpi pll vcore?

 

[Slaymate]

http://www.techist.com/forums/f10/i7-overclocking-guide-224693/

You shouldn't need to adjust anything to start with. Read the Guide.