[Coco] 512 Upgrade

Stan Blazejewski stanblaz at netspace.net.au
Tue Aug 8 20:35:57 EDT 2006


G'day Rick,

I remember when I upgraded to 512k many years ago that if I pushed the memory
board 'all the way home', it wouldn't work. Whether the pins were going to far
& shorting something, I don't know, but I made small spacers over a few pins so
that the pins would only go 3/4 way into the headers & it worked reliably for
many years afterwards (& still is).

On Tue, 8 Aug 2006 12:22:43 -0400, you wrote:


>Anyone who could help me I would be grateful :-)

>

>

>

>I have had a new Tandy 512 upgrade lying around and a perfectly good cc3

>with 128k. so I figured why not make a 512 that doesn't work!

>

>

>

>I removed the existing chips and snipped c65 and c66 dropped the new 512

>in....

>

>

>

>Turn it on and get green with no text. Removed 512 and put the old chips

>in - same thing a green with no text.

>

>

>

>I am quite sure this has been seen before, if so can you give me a clue?

>

>

>

>Thanks!

>

>Rick

>

>

>

>

--

Australia isn't "down under", it's "off to one side"!

stanblaz at netspace.net.au
www.cobracat.com (home of the Australian Cobra Catamaran)
http://groups.yahoo.com/group/cobra-cat/



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