Noobish question - CPU voltage setting

[gbdtil1]

A mate of mine (yeah right I hear you say!) has what is the difference between letting the CPU voltage at AUTO versus manual adjustment? Sounds like a really simple question but if AUTO implies it automatically supplies the required voltage (btw, he's overclocked his E6600 to 2.93 currently and is looking to press on), then it begs the question as to why manual option is required.

Is manual for more 'fine tuning'?

Does auto only send enough volts to the cpu at its stock rated speed?

Confused!

Simpathetic reply required to Noob overclocker. Thanks all

 

[gbdtil1]

Thanks for that Cob. You're a star, mate

Can you expand on your comment:

''If using Auto you really need to keep an eye on the voltages in Windows''

Cheers mate

 

[gbdtil1]

Ah, with you. Thanks mate