[comp.sys.mac.hardware] FYI:IIci cache card release info

marc@Apple.COM (Mark Dawson) (03/27/91)

For those interested,

The IIci cache card (Apple's, of course) is now shipping; I thought y'all
might be interested in a little more information about what happened, so I
pushed for official approval of the following statement (if you're wondering
why all of us Apple people always put "its my word, not Apple's" down, FYI it
took close to 5 weeks to get approval from our PR and Legal dept of this
text).
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Apple has now started shipping its IIci cache card. The original version was
removed from the market after we experienced system failures when the card was
installed in some IIci's.  The problem was traced to some mass production SRAM
which differed in characterization from our expected performance.  This
resulted in unpredictable behavior in some Mac IIci's  when the Cache Card was
installed.   Rather than simply screen for acceptable parts, we decided to
redesign the Cache Card.  The redesign involved reducing the signal noise on
the board by adding synchronous switching output logic.  The performance (a
claimed "everyday useage" of 20-30%) and basic design remain the same.
 
The SRP is still $399.  You can exchange your old IIci cache card (serial
numbers start with "CF") for the new (redesigned) one (serial numbers starting
with "AF") under the "Apple Macintosh IIci Cache Card Exchange Program."  The
redesigned card has a new part # (M0326LL/B--US & parts of Pacific Region,
M0326Z/B--Europe), replacing the old (M0326LL/A and M0326Z/A respectively).
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Well, now you know, and you can return to your regularly scheduled flames...

Mark-- 
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Mark Dawson                Service Diagnostic Engineering
AppleLink: Dawson.M

Apple says what it says; I say what I say.  We're different
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