Re: "Overclocking" a //c+?

[mjmahon@aol.com (Michael J. Mahon)]

Raymond replied:

>    It's been a number of years since I've peeked into an //c+, but unless it
>has a separate crystal for just the CPU, then no.  If it has 1 crystal, then
>all the other circuits in the system are dependent on that clock signal being
>16 Mhz, for instance.  So in principal it won't work at all.
>
>  On a machine like the Quadra 700, the CPU has it's own crystal, and so
>swapping the 50 Mhz crytal for a 66 Mhz one (going from a CPU speed of 25 to
>33) is not a problem.

The //c+ has a separate CPU crystal, since it is essentially a discrete
implementation of a Zip Chip--hence the question of overclocking.  Clearly,
if the CPU speed were tightly coupled to system bus/video generation speed
any modification would be problematic, to say the least.  ;-)

-michael

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