Re: ZIP GSX 1.0.1 vs 1.0.2

[Steven Hirsch <snhirsch@gmail.com>]

Drew wrote:
> Hi,
>
> I have a couple of ZIP GSX boards that are version 1.0.1. Since i have
> had them i had always wondered what the difference was between this
> version and the 1.0.2 versions that came out later. I upgraded one
> card myself to 12.5Mhz and 32K cache and that board doesnt have any
> logic chip sockets at all. My other one I sent of to get upgraded to
> 12.5Mhz and 64K Cache and i think it came back (was about 5 years ago
> so not 100%) with logic chip sockets and labels for which chip goes
> were... I have a picture of the card ftp://drewbie.dyndns.org/UPG_ZIPGS.JPG
>
> My question is what did the logic chips do? and is it something i can
> add to the card to push them to higher speeds/other benefits?

Interesting.  I just came into possession of Zip GSX 1.01 and noticed the lack 
of those chips.  Wasn't sure if it was practical to upgrade it or not.  Can 
anyone else provide some data points on this?  Henry Courbis?  What's your 
experience with v1.01 vs. 1.0.2 Zips?

Somehow I doubt it's just a matter of installing the two 74F parts. 
Somewhere, something else must have changed (jumpers?  traces cut?).

Steve