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Emax

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Re: Memory Upgrades

2009-11-08 by esynthesist

A memory upgrade indeed also required sometimes the replacement of the PAL.

But... I think the two most common situations today are:
1/ Someone's Emax-II has the expanded memory board with correct RAM and PAL but for some reason lost the eeprom data
2/ Someone found a second hand or NOS Emax-II memory expansion board for the Emax-II but no installation disk (or a used one) is provided.

I guess in both cases the PALs are already OK because - if I understand it correctly - these PALs are seated on the memory expansion board itself, right ?

If a new memory expansion board has to be developed from scratch, then we would also need the PALs for sure.

Or am I overlooking something ?

///E-Synthesit

--- In emax@yahoogroups.com, "Everett" <evy_newt@...> wrote:
>
> I see that there are at least 2 "programmed PALs" in each memory board upgrade kit inventory.  Does anyone know what these chips are and what information they contain?
> 
> Let's say we perform a mild miracle and successfully clone this 9306 EEPROM.  Wouldn't these chips need to be upgraded (installed?) as well?
>

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