---------- Original message ---------- Subject: Re: Unstable PowerMac G4 Date: Sunday, 30. January 2011 From: "Deaner Lawless Jr." <law...@gmail.com> To: g3-5-list@googlegroups.com > > If you have access to an alternate power supply unit for your Mac, try it > > with Mac OS X 10.4.11 and see if that does any good. > > Since this is Mirror Door model I believe the main cabinet fan is what is > changing in speed. The strange part is when I connect my 2.5" portable HD > via FW400 that slows it as well. Powered XHDs don't have the same effect.
This behaviour would indicate an electrical issue. But it's hard to be sure without a reference system to test. I had a MDD Dual-1.0 GHz once and don't remember any fan reactions when plugging in external USB devices. I never used FW400 though. And the USB drivers where either 2.5" USB-bus-powered or 3.5" external powered hard disk drives, connected to a USB-2.0 PCI expansion card. > I wish I had a second PSU for the machine. I do have a good 340watt PSU > used in earlier PM G4 models. Will have to check compatibility. I don't think that MDD PSUs are the same as, say, QS or DA ones. But I don't really know either… Good luck! I hope you'll find a solution… Cheers, Andreas aka Mac User #330250 -- You received this message because you are a member of G-Group, a group for those using G3, G4, and G5 desktop Macs - with a particular focus on Power Macs. The list FAQ is at http://lowendmac.com/lists/g-list.shtml and our netiquette guide is at http://www.lowendmac.com/lists/netiquette.shtml To post to this group, send email to g3-5-list@googlegroups.com For more options, visit this group at http://groups.google.com/group/g3-5-list
