Greg,
Maybe the new RAM modules are faulty. I have a rev. B and last year
installed 384MB (256+128).
On the first try, I had similar problems to yours. Put old RAM
(32+32) back in and everything was fine.
Got new RAM exchange from vendor, and it worked immediately.
Herb Goodfriend
>Hi all,
>
>I've got a very frustrating issue with my original
>Revision A iMac. I have read at numerous sites that it
>is possible to upgrade to anywhere from 386-512 megs
>of RAM.
>
>I'm running 9.1, and recently changed my memory
>configuration; I put the 64 meg DIMM I had in the top,
>into the bottom, and installed a 256 meg DIMM in the
>top. However, after restart, the machine only
>recognized 128 out of the 256 meg DIMM; this left me
>with 196, rather than 320!
>
>I have a feeling I need to do a firmware update, or
>something. However, the only one I was able to find on
>Apple's website, was 1.2. When I tried to install it,
>it informed me that it was unable to install because
>it could not recognize the Firmware that was currently
>installed ("it may be a newer version..").
>
>I'm extremely puzzled right now. Am I going to have to
>return my 256 meg DIMM and settle for 192 (the
>official max listed on Apple's spec sheets), or can
>somebody here explain to me what I'm doing wrong? :-)
>
>Thanks,
>Greg Miller
>
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