Hi there.. I have also an updated cube with the 1.2 GB CPU, and no problems with the power supply... But, is it an original Sonnet Encore CPU? + did the noise start after upgrading or was it there before? If it just started with the upgrade, maybe the CPU takes more power, but in this case the VRM card would be damaged before the power supply... If you made this upgrade a long time ago and it just started to make this noise, than I thinks it's a sign to get a new one.. Just have a short look on e-bay - there are always some refurbished ones. Cheers, Balázs Am 27.08.2011 um 00:11 schrieb liza bear: > HI > > The power supply for my G4 Cube, Model No 661-24550 > gets very hot a and starts whistling after a couple of hours > of operation. > Is there a way to fix this, or how could I get a new one? > > Thank you. > > My CPU has been upgraded to 1.2 GB > > Liza > > _______________________________________________ > Cube mailing list > Cube at listserver.themacintoshguy.com > http://listserver.themacintoshguy.com/mailman/listinfo/cube -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://listserver.themacintoshguy.com/pipermail/cube/attachments/20110827/f86dede0/attachment.htm>