on 4/11/04 9:40, PeterH5322 wrote: > The bottom fan is supposed to draw cooling air in from the outside and > flood the bottom drive area, the PCI area, and the processor area with > cool air. > > Reversing the rotation of that fan would not improve the flow within the > areas indicated.
Hello all. I just had to chime in here, since I did some research, then practical experimentation along these lines when I put together my 8600 with twin Seagate Barracudas, both of which generate a fair bit of heat. I do know the cases are similar in design, so FWIW, here's what I found: Peter and Mark are both correct. The original configuration (the side door fan acting as an exhaust) was and is a bad idea. It not only disrupts natural convection and reduces the effectiveness of the PSU fan, it also pulls that heated air across an already hot CPU daughtercard on its way out of the case. The "revised" design allows convection and the PSU fan to do their jobs more effectively. But they are also correct in the statement that the difference is not marked... I only saw a 3 degrees F drop in the temp inside the case. Just my two cents. F. -- PCI-PowerMacs is sponsored by <http://lowendmac.com/> and... Small Dog Electronics http://www.smalldog.com | Refurbished Drives | -- Sonnet & PowerLogix Upgrades - start at $169 | & CDRWs on Sale! | Support Low End Mac <http://lowendmac.com/lists/support.html> PCI-PowerMacs list info: <http://lowendmac.com/lists/pci-powermacs.shtml> --> AOL users, remove "mailto:"; Send list messages to: <mailto:[EMAIL PROTECTED]> To unsubscribe, email: <mailto:[EMAIL PROTECTED]> For digest mode, email: <mailto:[EMAIL PROTECTED]> Subscription questions: <mailto:[EMAIL PROTECTED]> Archive:<http://www.mail-archive.com/pci-powermacs%40mail.maclaunch.com/> Using a Mac? Free email & more at Applelinks! http://www.applelinks.com
