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Réponse(s)
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 mar. 28 déc. 2004, 08:00
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Newbie
Groupe : Members
Messages : 24
Inscrit : 10 avril 04
Lieu : Ottawa - CA
Membre no 40,632
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Hi guys You may be experiencing the dreaded nap whine. My computer had the same thing: a high pitched whine that would change when I scrolled and moused over different things. The problem is caused by grounding apparently (or so I have heard) and how the mac uses the power to cycle the processors (again I have heard this as an explanation) At any rate the fix is to download and install the CHUD tools. Once installed there is a window that comes up and it has a checkbox that says nap. Click it to remove the arrow and that should get rid of the whine. I have done it since Oct 2003 and have experienced no ill results although the fans sometimes kick in for a bit when I uncheck it. go to this page and about 1/2 way down you'll see the link to download CHUD http://developer.apple.com/tools/performance/
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Les messages de ce sujet
 iShawn High-pitch With Firewire dim. 26 déc. 2004, 23:37 macyu Yeah I had this problem too. A small discussion w... lun. 27 déc. 2004, 07:51 arvidtp I have had this same kind of high-pitch sound prob... lun. 27 déc. 2004, 18:08 iShawn I bought a Belkin Firewire cable to replace the pr... mar. 28 déc. 2004, 01:08 iShawn I have tried to get ah hold of Presonus for any in... mar. 28 déc. 2004, 06:47 macyu Cool find. I googled it - lo and behold, there... mar. 28 déc. 2004, 08:05 iShawn Let us know if that does work out for you though..... mar. 28 déc. 2004, 09:18 iShawn Well... I'm impatient... and I tried it myself... mar. 28 déc. 2004, 20:51 fictionmusic Her is the explanation I got from a poster on yaho... mer. 29 déc. 2004, 07:37 iShawn Thanks man, a beer to you! mer. 29 déc. 2004, 21:19 iShawn I really hope Apple plans to fix this problem in f... dim. 2 janv. 2005, 22:27 macyu I'm back, and yes, turning off the nap mode fi... dim. 2 janv. 2005, 22:42 iShawn I wonder if using a Firewire hub with other firewi... sam. 16 avril 2005, 04:12 iShawn Also, if anyone has gotten a new powerbook since t... dim. 17 avril 2005, 16:52 iShawn QUOTE (iShawn @ Apr 15 2005, 21:12)I wonder i... dim. 24 avril 2005, 10:20 lepetitmartien Somebody with input please? lun. 25 avril 2005, 01:20 fictionmusic I am not really sure what the question is. Is it t... lun. 25 avril 2005, 02:08 Gojinx Have you tried swaping out firewire interface cabl... lun. 25 avril 2005, 05:43 Jubei Is this whine that you are speaking of coming thro... jeu. 28 avril 2005, 17:42 iShawn QUOTE (Gojinx @ Apr 24 2005, 22:43)Have you t... jeu. 28 avril 2005, 22:55 editbrain i have had the same problem. i have had 4 G5 from... ven. 29 avril 2005, 18:10 lepetitmartien You need to install the developer tools to install... ven. 29 avril 2005, 19:46 cornutt Seems like there ought to be an Open Firmware comm... ven. 29 avril 2005, 20:03 arvidtp I got this whine on my powerbook with my new fireb... jeu. 9 juin 2005, 18:12 iShawn I tried doing this so myself but had no luck doing... jeu. 9 juin 2005, 21:09 ourmanflinty Did anyone get to try swapping power supplies on t... jeu. 9 juin 2005, 23:30 fictionmusic I use an older version of CHUD tools as the newer ... ven. 10 juin 2005, 00:23 arvidtp cool - it works! (CHUD 4.1.1 - I already had d... ven. 10 juin 2005, 21:38
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High-pitch With Firewire
