Re: ZIPGS 2-pin Crystal

[andrew.webber2@btinternet.com (Andrew Webber)]

Wayne Stewart <waynes@intergate.ca> wrote in message news:<3D12B42D.7D6CD8A3@intergate.ca>...
> Andrew Webber wrote:
>  
> > I tried another 50Mhz oscillator and this time it at least booted, but
> > was not very stable. I droped the cache down to 32K and all seems
> > (cross fingers) ok. Made it 12.5 Mhz Yippie!
> > 
> > Andrew
> 
> Dropping the cache to 32k would have been the first sugestion.
> There was a bit of discussion a while back about that second 32k bank
> often making a card unstable at higher speeds. 
> 
> Usually you can go to a higher speed on a ROM 3.

Thanks for that. I actually have 2 ZIPGS so I decided to physically
take out the other bank of 32K to use in my 2nd card (only the first
two slots are filled). When I take the 2nd bank the card is not stable
at all and will not even boot GS/OS. So putting 64K cache in and
setting to 32K makes the system stable. Any ideas why that is the
case?

Thanks

Andrew