i just recently finished building a new system and i have the following fans installed: 1) Antec Earthwatts 650w PSU, 2) 80mm stock case fan (Athenatech tower), 3) Evercool EC-PT12-9525EA 95mm CPU cooler and 4) Apevia 80mm case fan. Basically the system stays at 'medium' noise but does not go into 'low noise' mode after a certain period of time which I am used to with previous systems. I am also wondering if my measly 2GB of RAM could be making the PSU work harder thus producing more noise? I have an Intel Q6600 on an Asus P5K motherboard with a WD 750GB HDD. Only other component is a cheap XFX video card. Are the Earthwatts notoriously loud? I'd just like to knock the noise level down a bit without resorting to silencers. Any input would be greatly appreciated! Thanks!