Hi Fred, You have a complex system of upgrades. You say the problem was before the OSX upgrade. I have a 1.2 cpu and a 120 HD on my Cube. I can only suggest the obvious and that is to back out of the hardware upgrades until it fixes. Good luck, Roy On Mar 13, 2008, at 1:34 PM, Fred Terry wrote: > Howdy, > > I have a problem with my upgraded Cube that I haven't been able to > figure > out, so I'm looking for suggestions. > > The Cube was originally a 450MHz model that I've upgraded with a > GigaDesigns > 1.2GHz processor. I installed a fan when I did the processor > upgrade. I have > installed a Radeon 7500 video card with a heat sink and fan. The > hard drive > is a Western Digital 320G that I've partitioned with the HiCap > driver. I'm > currently running Leopard, but the problem was happening on Tiger > before the > upgrade. > > The problem is that the Cube will freeze unexpectedly while I am > copying > large files across a network connection or between the internal and > the > external drive. It will also freeze when I am playing a song in > iTunes. This > is repeatable and happens every time I try to use iTunes. The Cube > has an > iSub attached along with the standard speakers. > > I have replaced the motherboard, the video card, and the PMU. I > have also > tested the RAM and it consistently passes. I have not replaced the > GigaDesigns CPU with the original processor, but I'm planning to do > that > over the weekend. > > I appreciate any suggestions for what to test/replace next. > > Thanks, > Fred > > > _______________________________________________ > Cube mailing list > Cube at listserver.themacintoshguy.com > http://listserver.themacintoshguy.com/mailman/listinfo/cube