On 18/01/2005, at 12:55 PM, bill parker wrote:
Can anyone help with this question?
I have been doing a throw out of old computers and salvaged bits from
some old 7200 machines.
Thus I have the RAM from a 7200/90. Will this be compatible with the
7220/200? Both machines built in 1995.
I am obliged to use the latter machine because of its connection to a
piece of equipment in a lab. Bill
The 7200 and 7220 used different sorts or RAM. In fact, the wonderful
(!) 7220 was unique in the RAM it required: no other Mac used the same
sort. The 7200 used 168 pin 5V FP DIMMs, while the 7220 used 168 pin
3.3V EDO DIMMs. It is NOT possible to use your 7200 RAM in a 7220. It
doesn't do any damage - it just doesn't work. I know, after having been
supplied with the incorrect RAM on several occasions when trying to
upgrade clients' old 7220s well into the iMac age. Apple Australia (who
are now out of the upgrade business , BTW) have been the only source of
7220-compatible RAM for some time. Now, not even they supply it.
--
Peter Hinchliffe Apwin Computer Services
FileMaker Pro Solutions Developer
Perth, Western Australia
Phone (618) 9332 6482 Fax (618) 9332 0913
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Mac because I prefer it -- Windows because I have to.
