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Fellow collector Mark Johnson has loaned me a couple of power supplies, so I can test my Macintosh Portable. He has lent me a Macintosh Portable power supply...

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Comment by Patrick Spera on September 1, 2011 at 9:51pm

Humph,

 

Well, If I were you I'd:

 

1)   See if there is a memory card.  If so, removed and try rebooting.

2)   Disassemble the computer, an easy enough thing to do, and clean the motherboard. I had a portable that was 'growing whiskers' on the capacitors.  It was dust aligning with the electromagnetic lines of force generated by the caps sapping power from the circuits.  It would generate a similular memory fault until I hit the reset buttons several times.

3)   Replace the  lead acid battery with a good one.

 

Regards,

 

Spera

Comment by Finkmac on October 12, 2011 at 8:23pm
I just realized that my PowerBook 100 does something similar…

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