[Coco] Upgrading RAM for CoCo 1

[Don Akins]

Ahh, thanks for the info. What made me think the chips were bad is that they
have scarring on the pins of some of them as if they arced from a short.

> 
>     On April 25, 2015 at 12:20 AM Arthur Flexser <flexser at fiu.edu> wrote:
> 
> 
>     You realize that it's normal for PRINT MEM to show something like 8K in a
>     16K CoCo? (PRINT MEM is only showing the memory available for Basic
>     programs, which doesn't include 8K or so reserved for the operating
>     system. I think 8487 is what you should see with Extended Basic). If you
>     had bad RAM chips, the CoCo likely would show garbage on screen if it
>     booted up at all.
> 
>     Art
> 
>     On Fri, Apr 24, 2015 at 10:19 PM, donald at dra.space donald at dra.space <
>     donald at dra.space> wrote:
> 
>     > Hi Guys,
>     >
>     >
>     > I recently bought a silver CoCo 1 and when I booted it up it only
>     > recognized 8k
>     > ram out of 16k. So I opened it up and noticed that some of the ram chips
>     > appeared to have burnt out. The motherboard has jumpers for 64k so this
>     > board
>     > must be one of the later revisions of the CoCo 1. I pulled one of the
>     > chips I
>     > out which is a 4116N-3GP. Are there any equivalent 64k chips out there
>     > today for
>     > a CoCo 1?
>     >
>     >
>     > Don
>     >
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