Re: 14 MHz '816 update problem...

[mportune@telerama.lm.com (Matt Portune)]

arekusu (eddy@cs.ucdavis.edu) wrote:
> Okay. My oscillators and 74hc00/02 came today. 
> I'm having major problems getting this thing to
> work at all. My Zip (1.02) DOES have the resistor at R1
> and caps at c13/c14... it originally had a 2-pin 32MHz
> crystal. After putting in the new CPU, nand/nor gates,
> osc socket, osc, and removing the old osc, the system
> just sat there with a dead screen. Hit OA-option-Cntrl-Reset
> and it fills the high res screen with goo. Hmmm.....

> Tried putting everything back the way it was, but keeping
> the new 7400/02. Bizzare crashes in GS/OS.

Try putting all the new componenets on, but leaving the old 7400/02 chips 
on.  I had my zip running at 15MHz without the new CMOS chips, finally 
got the new ones, put them on, and I couldn't even boot up.  I still 
haven't figured it out!  But with the old chips on, I can push it to 
16MHz before losing stability.

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