Re: ZipGSx Upgrade Questions (I've read the FAQ's)

[Wayne Stewart <waynes@intergate.bc.ca>]

Marvin Miller wrote:

> YES, I've tried my accelerator at 7 Mhz! Have you tried downgrading
> your accelerators to 7Mhz? ;-o
>
> In as far as de-soldering the 74F00 chip and installing a new one -
> There's a good electronic repair shop in town who do nothing but
> soldering all day. I'm sure they can make it so that you can't tell
> anyone was in there. For them, it's probably a pretty simple operation
> - looks like it to me anyway, lots of access etc. I haven't heard yet
> WHY this needs to be done. Did you perform this upgrade Wayne?

Yes, several times on different ZipGSs. The fastest I was able to get
on any of the acellerators without doing it was 12.5mhz.

> Seriously though, I ran into some really old ZIP txt files (1992 era)
> and they were mentioning all over the place that it's no problem to
> get 15Mhz out of it with the complete mods.

Alot of people weren't able to get that far but then a lot did. I'd take
Rubywands advice and order a number of different speeds of
oscillator. Won't add much to your order.

> The way I see it, plug an play is 75% of it. A 5 second trip to the
> electronic shop is pretty easy, the hardest and most annoying aspect
> seems to be finding the correct part numbers (current) for the right
> products. Being I'm in a more 'remote' region of Canada and seem to
> have no access to these parts - they will likely have to come from the
> USA. As such, I want to get it right the first time before paying
> exchange, duty, pst, gst and of course, shipping fees.

I don't know if it applies to your area but it's usually a good idea to avoid
UPS in most cases. That $25 service charge really hurts on small orders.

    Wayne