I upgraded a Wall Street unit with a Sonnet Crescendo G4/500. I had a problem with the PRAM battery (even before installing the processor upgrade) which went away when the PRAM battery was replaced. However, I am having the following problem: I can start up from the battery that came with the unit, but it invariably freezes after ~5 minutes of use.

It is not the battery; I have a second PowerBook that works fine (I often swap the batteries between the units, and one unit has no problems running off either battery). I have reset the Power Management Unit. I have done most everything that I can find on Apple's help boards. And I am not alone; if you read this post: http://www.macopinion.com/columns/roadwarrior/02/06/11/talk/1.html you will see that someone else has had an identical problem (albeit with a G3/500 Crescendo upgrade).

I have posted this to a number of boards and also to Sonnet's help board. If I get advice that resolves the problem, I promise I will follow up. Thanks in advance.
--
Paul D. DiGiovanni, M. D.


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