my athlon 1.4 @ 1.567 runs at 50C full load...used to run at 45C full load where I lived the last two years before I moved (electricity was included in our rent...but not anymore...hence a major cutdown on A/C).
Duvie, can you expand more on the issue of positive pressure? does that mean you have too much air coming in and not enough going out? or does it mean that you have too little coming in and a lot going out?
I also have the ANtec 1080B (wonderful case btw...love the black/charcoal color), with teh side intkae fan, two inlet fans and 2 exhuast fans. along with a overclocked ti300 (which probably doesn't help for heat issues), I would think the side fan would actually help in my case. why?, becasue my heatsink fan (a loud a$$ 60mm 50.5cfm delta fan), blows on to the heatsink so the side fan brings cool air from outside and goes right to the heatsink fan which blows on the cpu...when I have time I'll try reversing it to see if system temps go up or down (it's gonna be a PIA walking by teh side of my case though!!!).