Hi Nancy, Thanks for your thoughts!
Nancy Haitz wrote: > > Just to the left of the power supply is a swing-out cage meant for > > another fan, and the case cover has vents for it, but I cannot find a > > suitable socket for feeding this fan though. > > That "swing out cage" is really designed for additional hard drives. > It is referred to in the Users Manual as drive bay 6 and 7. Drives 1 > though 5 being the ones on the front face of the box. Indeed this swing-out cage can accommodate two half-height 50-pin SCSI hard drives, with SCSI connectors available, supplying power to them would need to be jury-rigged somehow. Whichever way, at the very end (left-most side) of this structure is indeed a fan grill with holes for a 80mm fan, so it should really be meant for ventilating the hard drives mounted there I presume. > The existing fan (that one behind the power supply) does push air out > of the case. It was designed to work with strategically placed > openings here and there in the case. If you add a second fan to push > air out, there may not be enough openings for air to get in fast enough > to make two exhaust fans useful. > > If it were me, I guess I would add a fan pushing fresh air in and one > pushing air out. Maybe using an empty drive slot in the front, and a > PCI slot in the rear. They make some very nice PCI card exhaust fans. My line of thinking is more like this: if the original fan is for pulling air out of the enclosure from the back, it means the enclosure is made to have air vents for the ingress of cool air which flows over the hot components, effecting ventilation. If an additional fan is put there to pull out air as well, it means that the rate of ingress of cool air will be increased, thus increasing cooling; but if the additional fan pushes air in, the ingress of air from the vents would decrease, which probably would diminish the rate of cooling. Any thoughts on that? > There are also some very nice little fans that mount right on a hard > drive for pushing the hot air away from the drive. However, with these > you are just moving the hot air somewhere else inside the box. I have seen many of these fans, and the later offerings do look quite sophisticated with two small fans mounted in the middle of the bolt-on casting; I tend to agree with you regarding them moving hot air around, but if ventilation is indeed increased in the sense of moving air out of the box, they might help to reduce the likelihood of having some "hot spots" within the interior of the enclosure. In the case of the C600, I do not think it can be terribly helpful, after all, the IDE hard drive is sort of "dangled" under the 5-1/4 bays with a lot of air around it, so if ventilation within the enclosure is satisfactory, I would imagine that it can be quite happy as it is. All the best, Sam. -- SuperMacs is sponsored by <http://lowendmac.com/> and... Small Dog Electronics http://www.smalldog.com | Refurbished Drives | Service & Replacement Parts [EMAIL PROTECTED] | & CDRWs on Sale! | Support Low End Mac <http://lowendmac.com/lists/support.html> SuperMacs list info: <http://lowendmac.com/supermacs/list.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/supermacs%40mail.maclaunch.com/> --------------------------------------------------------------- >The Think Different Store http://www.ThinkDifferentStore.com ---------------------------------------------------------------
