Re: CV Tech Piggy-Back RAM

[kmitchel@nyx.cs.du.edu (Kirk Mitchell)]

Steve Townsend (steve.townsend@rook.wa.com) wrote:
:     
: Configurations!
:     
:     I have a CV Technologies "Piggy-Back" Memory Card.
: (Rev.B) with 4-Meg installed in my IIgs.  Until recently
: I also had a 1-Meg RAM card installed in the piggy-back slot,
: but I pulled it out because I needed it in another machine.
:     As a consequence, I need to know how to reconfigure the
: jumper blocks so that programs that check that sort of thing
: (like AppleWorks 3.O) upon booting know that there is only 4-Meg
: of RAM installed and doesn't go looking for the Fifth Meg.
:     

<some stuff whacked>
Total Memory          Banks to fill         Jumpers

1 Mb                  Bank1                  D+C
2 Mb                  Banks 1+2              D+B
3 Mb                  Banks 1+2+3            C+A
4 Mb                  Banks 1+2+3+4          C+B
5 Mb                  Bank1                  D+C
6 Mb                  Banks 1+2              D+B
7 Mb                  Banks 1+2+3            C+A
8 Mb                  Banks 1+2+3+4          C+B

There are some other settings for adding a card w/o filling up the banks, 
but I'm not going to mess with them... B-{)

: PPS
:     What would happen if I put a 2-Meg or 4-Meg card into the 
: piggy-back slot?  Would I get 6-Meg or 8-Meg or RAM?  or would I 
: do some damage?

No, it works fine.  I've got a Sequential 4 Meg card in the pocket of 
mine, and it works fine (though I got two, one for another GS I have, and 
it DIDN'T work.  Evidently, Seq. has to make minor modifications to the 
card to make it work w/ the CV Tech card, and I only had them do that to 
one.  I couldn't tell which one it was.)


:     
:                          Thanks Again,

Sure

:                                      
:                          Steve.Townsend@rook.wa.com       or
:         
:                          townsend@potlatch.esd112.wednet.edu

Kirk Mitchell B-{)    USD #209  Moscow, KS
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