On 9 September 2010 at 17:24, "Kjetil S. Matheussen" <k.s.matheussen@xxxxxxxxxx> wrote: > Your point was not hidden, it was wrong. Some of the hot stuff is > also the stuff which is sensitive to heat. If you put the CPU > and the PSU at the top of the case, they will be heaten up by > hard drive, motherboard, etc., and they will cause more noise > than if you had putten them at the bottom. You might be right. I haven't done the experiments myself to determine which ends up being cooler. All my comments were based on a research paper I read on how to keep rack mounted test equipment cool and reduce the number of failures due to heat in the rack. Their conclusion was to put the power supply (especially) and other hot gear at the top of the rack, near the exit vent and fan. They demonstrated lower temperatures and lower failures by doing so. I extrapolated to computer cases, and maybe that was a mistake. The classic computer tower designs I see are power supplies at the top with their own exit fans, and CPUs right below the power supply with a case fan blowing in on the CPU and a CPU cooler drawing air from there and blowing it away from the CPU. Does anyone know of any research papers on tower style computer cooling? Of special interest would be reports related to placement of heat sources, cool air intake and hot air exit vents. Thanks... -- Kevin _______________________________________________ Linux-audio-user mailing list Linux-audio-user@xxxxxxxxxxxxxxxxxxxx http://lists.linuxaudio.org/listinfo/linux-audio-user
