Re: Help with the ZipGSX accelerator card

[PZ <skierpaul@yahoo.com>]

On Aug 9, 6:29 pm, Steven Hirsch <snhir...@gmail.com> wrote:
> mclovin wrote:
> > Hello,
>
> > I came across an Apple II with a ZipGSX accelerator card in it. I need
> > money for school so I wish to sell the card. reading manuals online I
> > found that the old CPU was "stored" in a place on the end. So I took
> > the ZipGSX out of my apple, and removed the CPU that was in it and
> > placed it back in my computer which boots fine and everything.
>
> > my question is, does removing the "stored" cpu do anything for it?
>
> > in this picture:
> >http://www.whatisthe2gs.apple2.org.za/files/ZipGSX/CoverScan_Highres/...
>
> > you can see on the far right there is a slot for "original", that is
> > where I took the CPU out and put it back in my computer. Is it OK to
> > sell like this?
>
> The socket is intended to provide safe-keeping for the original CPU.  I
> seriously doubt a purchaser would care if it was unpopulated.

If both TAG and DATA sockets are full, then you either have a Zip GSX
with 16k or 64k of cache ram.  Also, the speed of the Zip is
determined by the Oscillator in the upper left hand corner.  To know
the speed of your zip, (if you don't have a zip utility that tells
you) take the speed of that oscillator and divide by 4.  So if the
oscillator is 32.000mhz, then you have a 8mhz Zip.  Most likely you
have a 7, 8, 9, or 10mhz Zip.

- Paul