[citation][nom]lewac[/nom]my thermal issues are resolved in an entirely different manner. External whole box fan. I don't use ANY internal fans at all (even the power supply fan(s) are removed). Just the CPU heatsink. the downside of my method is that it takes a bit more mechanical skill here. First I install a 12" X 12" X 1" filter into a "cooling box" mounted within the room somewhat near the box to cooled. Then I use aluminum 4" diameter dryer vent hose from the input air box (somewhat similar to a vehicle diesel engine's) whose airflow is derived from a large 115VAC, 265 CFM squirrel cage fan) whose output is ducted back to a 2" X 10" cutout in the rear of the box. the output is redirected within the box by another box inserted about 8" into same whose motherboard side is open. This directs a massive amount of air directly onto the CPU heatsink; memory sticks, support chips and sinks, hard drives, and everyhing else mounted in the box. So not only is the CPU super cooled.. but so is everything else mounted within the box. The warm air is vented out through the FRONT AND REAR of the box to the point that any paper, even pens sitting in front of same will be blown clear across the room! And not only that. My box stays super clean inside even after years of service... just change the input filter every quarter. fan to use? look here:http://www.horticulturesource.com/ [...] d4afabc6bdyou pay more, yes. but you also get a LOT more. oh... plug the fan power into your UPS. when the UPS turns on so does the fan (thus a switch for the fan is not necessary). this particular fan draws about 1 amp from the UPS which is about typical for the amount of CFM. The fan is good for at least 5 YEARS of 24/7 use.[/citation]
very interesting but soooooo much hassle