yeah I'm still deciding and not sure. I read the Q9300 uses 198W at full load. The enermax I have I think only havs two +12v rails. I figure if I have 198W load on that CPU then have my components maybe up to 250 incl. fans. then ou have the video card. It gets close. But as you said without the hard facts it's hard to know for sure. I just want to make sure it has spare power when it needs it especially while gaming.