Re: Upgrade conundrums...

[lesherjt@vuse.vanderbilt.edu (Tilghman Lesher)]

Martin Gruen (z008729b@bcfreenet.seflin.lib.fl.us) wrote:

: Okay as stupid as it is to followup my own post, but I reviewed the FAQ 
: on accelerator upgrades and need to ask another question.  For an out of 
: the box ZipGS, if I want to put a 14 mhz chip on it, do I require the 
: crystal oscillator and SRAM (or anthing else I missed), or isn't it 
: necessary at that speed, and I can just swap  chips?

I have a 14 MHz chip in my Zip board right now running at 8 MHz.  You
need the oscillator upgrade if you want the chip to move faster.
Faster SRAMs (or larger capacity) are required so the processor doesn't
have to wait for data transfer.  The 74HC00 chip is also required to
replace the 74C00 (of the two at the bottom, the one on the right) for
the board to go above some speed.

Tilghman