[Coco] 1 or 2 meg ?

L. Curtis Boyle curtisboyle at sasktel.net
Wed Apr 8 18:21:48 EDT 2015


Looks like a 1 MB board to me. The DAT board is over the CPU, and two memory chip boards each with 512K where the RAM is.

L. Curtis Boyle
curtisboyle at sasktel.net



> On Apr 8, 2015, at 5:17 PM, Kip Koon <computerdoc at sc.rr.com> wrote:
> 
> Hi Josh,
> Looking very carefully at the memory board, there looks like another memory board is underneath.  If this is true, then could this be a 2MB upgrade?  Also, how many wires are connected to the memory board from the DAT board that contains the 6809 cpu?  If there are two wires labeled D6 & D7, then I would expect you have a 2MB Coco 3!  :)  Just one wire labeled D6 would definitely be a 1MB memory upgrade.  Try running NitrOS-9 on it and let us know what the mfree command displays.  Inquiring minds want to know!  :)
> 
> Kip Koon
> computerdoc at sc.rr.com
> http://www.cocopedia.com/wiki/index.php/Kip_Koon
> 
> 
> 
>> -----Original Message-----
>> From: Coco [mailto:coco-bounces at maltedmedia.com] On Behalf Of Josh Harper via Coco
>> Sent: Wednesday, April 08, 2015 5:14 PM
>> To: CoCoList for Color Computer Enthusiasts
>> Cc: Josh Harper
>> Subject: [Coco] 1 or 2 meg ?
>> 
>> hi guys I just got  this in I don't know  to much about this owner said he thought it was a 1 meg upgrade  can any one tell what it is is it
>> a 1 or 2 meg upgrade does anyone have docs for this heres the link to look at it
>> https://www.dropbox.com/sh/eqtdh2mfh0eemcw/AABYwn49uOet4qxYiqRwPxyra?
>> 
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