I'm not expert, but I have a PC 150 and PC 120 that have at times had similar 
problems.  My guess is a bad RAM chip.  Make sure all of your simms appear in 
Apple System Profiler.  If they don't you may have one that is problematic.  
Try also just re-arranging them and clean the contacts while they are out.  


In a message dated 7/7/01 10:13:23 AM, [EMAIL PROTECTED] writes:

<< 

     Here's the thing. I've got a PowerCenter 132 with 64 megs ram, sys 
8.5.1 and 1.2 Meg HD that behaves quite strangely. Sporadically, it loses 
all preferences, something like a bad pram battery would do. However 
replacing the battery does nothing to solve the problem. Zapping the 
pram, reformatting the HD does not solve the problem either.

     What I've read somewhere in this discussion list is that a failing 
power supply causes all sorts of strange problems. I'm wondering if a new 
power supply could solve my problem. Anyone have a similar experience or 
thoughts on replacing the power supply?

"Ignorance is the night of the mind, but a night without moon or star."
--Confucious

 >>


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