I just picked up an unbelievably mint condition Late 2005 Quad 2.5ghz G5 with a Quadro FX 4500 for an incredible steal. I bought my first G5 new back in 2004 and eventually sold it sometime in 2010, so getting back to nostalgia is great. The only thing is I don't remember is these units being so loud. The fans seem to kick up even when sitting in safari doing some basic web stuff. Something just seems off. Anyone have any thoughts? Attached an iStat screengrab.