David Cook's latest activity
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David Cook replied to the thread Dynamic Engineering Portable PDS RAM Card.Thank you! -
David Cook replied to the thread Dynamic Engineering Portable PDS RAM Card.It looks like the jumpers follow a predictable binary pattern EO=+1MB E1=+2MB E2=+4MB E3=+8MB E4=unknown So, to get +8MB (9 in total...
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David Cook replied to the thread Macintosh LCII failure.That's wonderful news! Congratulations. Your persistence paid off.
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David Cook replied to the thread Dynamic Engineering Portable PDS RAM Card.Yes. For 8 MB, I moved E3 to E1. So, all jumpers populated except E3. I will play with it further to figure out how to make it 7 MB for...
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David Cook replied to the thread Dynamic Engineering Portable PDS RAM Card.As a workaround, adding a >=1MB RAM disk in the Portable control panel seems to prevent crashing. The error is a memory manager error...
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David Cook replied to the thread Dynamic Engineering Portable PDS RAM Card.I have soldered on all the RAM. It works great in System 7.1 on a 5120 Portable. It shows 9MB total and passes all the memory test...
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I just bought a Dynamic Engineering Macintosh Portable RAM card with 2 MB of RAM installed. I also purchased new old-stock Toshiba...
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David Cook replied to the thread LC575 computer killed LC520 motherboard! 😭.From your expression of concern at the start of this thread, I related to how you felt about being the possible cause of damage. We've...
