If, like me, you have a small stash of dimms in static bags. How in the
!@#$% can you tell if they are EDO or FPM? It is only recently that Dimm
Manf/Sellers started putting the Ram MB values on Dimms, much less nano
speed or EDO/FPM. According to what I read, it's a no-no for me to put
an EDO Dimm in my Granddaughter's Apple 7200. I tried two 32mb Dimms and
got a loud static noise like a TV with a blown Audio circuit. I don't
know if they were bad on the front or the 7200 zapped them. RHB
"Michael S. Macdonald" wrote:
>
>
> >Also...from the http://www.macgurus.com website...
> > Apple Technical Information Library (TIL) article Power Macintosh
> >Computers:
> >-snip-
> > In the event FPM and EDO memory are mixed in these machines, the
> >memory controller will address the DIMMs in Fast Paged Mode (FPM).
> >Interestingly, MacGurus has noted far
> > better compatibility in these Alchemy variants using 5v EDO rather
> >than 5v FPM, and strongly recommends its use.
> -snip-
>
> it appears that EDO ram will be addressed as FPM ram when mixed.
> ergo..EDO ram may or may not be 'seen' properly by system profiler and/or
> may not be addressed properly by the memory controller of these machines in the
> event that the two ram types are mixed.
>
> Another issue here, which I've noted without quite understanding the 'why'
> is that the memory controller will only address up to a 32mb dimm in the
> first slot.
> 'why' would this restriction be built into the board??
>
> Anyone??
>
> Cheers...Michael
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