Ok, looked at the Abit IP35 Pro: it has some drwabacks sadely

No way to do a vdroop mod using a pencil: it badly vdroops for a quadcore, so overclocking will be really limited above 1.5v

It won't fit my HR-09U and HR-05 IFX

I think I'll be soon very limited with my Q6600 G0 if I needed 1.5v-1.6v to reach >3.8GHz