Philip, While I do agree with you that failure rate is related to temperature, I think I should point out 2 things:
1) There have been a lot of posts to this group about altering the existing fan to run on 7 Volts, instead of 12 Volts. This will effectively reduce the fan noise (by reducing the RPM), but also thereby reduces the airflow (CFM). To do the 7 volt reduction does involve wirecutting and splicing and isn't something that everyone is prepared to do. Not only that, but with the original fan running at 7Volts, you've probably reduced the airflow to about 60% of the oroginal. In contrast, replacing the fan with a fan of lower RPM (and noise) that runs at 12 Volts is something a child can do, and you still have an airflow volume of 85% of the original. 2) In my opinion, the fan in this case is seriously oversized. Sure, you can put 6 PCI cards and a few 10,000RPM SCSI drives in the case, in which case you will need to do something serious about temperature. But there are probably a lot of us who don't have all the PCI slots full and don't have a lot of high-heat-generating appliances in the case. This alternative is for those people. For the folks who have their Umax machines on steriods, I'd suggest water-cooling anyway ;-) -DWass Philip Stortz wrote: > they definitely are available in the u.s., and one of the popular > brands. i'd hesitate to use a fan with a lower air flow, you will be > increasing temperature, and generally failure rate is a square function > of temperature so a small temperature rise is expensive in terms of > shortening lifetime. -- 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/> Using a Mac? Free email & more at Applelinks! http://www.applelinks.com
