---------- Original message ---------- Subject: Re: G4 Cube: possible processors? Date: Friday, 10. June 2011 From: dc <dbc...@verizon.net> To: "G-Group" <g3-5-list@googlegroups.com> > > What I have: > > 1) a Dual-450 MHz G4 7400 from a Gigabit Ethernet > > 2) a Dual-800 MHz G4e 7450 from a Quicksilver > > 3) an OWC Mercury Extreme G4e 7450 1.4-1.467 GHz (NOT a Cube version) > > 4) a Dual-1 GHz G4e 7450 from a Quicksilver 2002 will arrive soon (eBay) > > > > The questions are: > > 1) Will they work in the Cube? > > First off, start researching at CubeOwner: > http://www.cubeowner.com/forums/
Already did, but I will continue to do so. Thanks. > If you going to do any mods to the Cube put in a base fan. I have a > Zalman in mine running on low voltage and I can't hear it at all. Of > the processors you list only the dual 450 will work in the Cube and > that will require spacers under the heatsink. The others will probably > burn out the Cube's VRM if you try to run them. Processors for the > Cube are built differently from most other Mac models so that they > don't overload the Cube's VRM, which is it's weak spot. Thanks! I was/am afraid of that, as this is discussed a lot, and there seem to be various mods for the VRM itself too. My thinking was that a 7400, which uses more power than a 7410, may still use about the same amount that an _underclocked_ 7450 will use – in addition to the thermal issue of possible overheat. And the other thinking is, if a Dual-450 will work, then a single 1.4 GHz (underclocked to 1.2 GHz) should also work. (And if not 1.2 GHz, then at least 1.0 GHz, or 900 MHz should do the trick…) But maybe I'm terribly wrong… and burn my VRM trying it… I was just hoping that someone has done something like it already – a completely fanless upgrade (with underclocking and hence without a VRM modification) – and is willing to share the required steps. Thanks for your help. 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
