On: Tue, 24 Sep 2002 19:32:15 -0500 John Teffer <[EMAIL PROTECTED]> Wrote: >The noise I hear, even when the fans and computer are off, is VERY high >pitched, like "on the upper limit of human hearing" high pitched. If you've >ever heard the whine some camera flashes make when they're recharging, >that's the sound I'm hearing. Only at a constant pitch. When I unplug the >computer, the noise continues for a few seconds, increasing in frequency >(sounding just like a camera flash recharging) then disintegrates into some >crackle-y buzzing noises, and is gone.
Hi John; You havn't said how long this "whine" lasts or your age group. My ears are 72 years old and conditioned by many years shotgun shooting with out ear protectors in my youth, so I would never hear things the younger listers could easily hear. A ENT Doctor once tested my hearing at about age 35 as being 30 db down at 10 Khz. That said the whine could be the power supply oscillator quitting as the various capacitors discharge. If that is the case, no problem. All normal. A loose attachment point in or on the Power Supply could magnify the sound. Ernie -- 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
