Re: CV RAM questions

[Tom O'Neill <tdon@delphi.com>]

Kirk Mitchell <kmitchel@nyx.cs.du.edu> writes:
 
>: I'm also have a CV RAM with the expansion slot but I can't go beyond 4 megs.
>: I have tried the full populated CV RAM card with a 1 meg Apple card but the
>: IIgs doesn't recognize the second card and it tells that I have 6 megs of ram !
>: I have ROM 01 with Zip acc., HS Apple Scsi card, HDFD Apple card, sound card
 
You'll have to disable DMA when you go beyond 4 Megs on the regular
CV Tech card...only the later and current 8Meg cards seem to be fully
DMA compatible...DMA is effective on ly for 1 Meg, 2Megs, and 4 Megs, but not
for
three Megs or for more than 4 Megs...with the Apple High Speed SCSI card, that
is,
don't know about th e RAMFast card...also, can't use 3Megs on the CV Tech
board and some other board piggy-backed with 1 Meg to get to four Megs...
the memory needs to be the same in order to use DMA.
 
Regards,
Tom