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Power Macintosh 9600 ram modules question
Posted by: Pushpull76 on 2023-05-09 14:56:24 Hey 👋 question for you all guys : I have a 9600/350 in restoration process which needs ram modules. I was searching 128MB edo ram dimm 168 pin to have it full expanded ; however, I found (at a good price) 256mb modules of the same type. Do someone here know if I can install them and simply see the maximum amount of ram the system can accept (1536Mb) or the bigger modules can cause other type of problems? Thanksss
Posted by: Phipli on 2023-05-09 14:59:21 Hey 👋 question for you all guys : I have a 9600/350 in restoration process which needs ram modules. I was searching 128MB edo ram dimm 168 pin to have it full expanded ; however, I found (at a good price) 256mb modules of the same type. Do someone here know if I can install them and simply see the maximum amount of ram the system can accept (1536Mb) or the bigger modules can cause other type of problems? Thanksss I believe the max RAM will still be limited to 1.5GB in Mac OS 9 if I understand what I've read before. But... I have seen a 256MB SIMM being used in a mac before. I was really intrigued, sadly @ThisDoesNotCompute didn't notice, or at least comment that he had such unusual RAM SIMMs in his Genisis 😉
Posted by: Phipli on 2023-05-09 15:03:11 Some stills from the video. These are the SIMMs : And about this mac :
Posted by: Phipli on 2023-05-09 15:04:56 It opens interesting possibilities for something like an 8600, or a 7200, if you could find a low profile 256MB 5V SIMM. Is the SIMM you're looking at low enough to clear the outrigger bit of the 9600?
Posted by: Unknown_K on 2023-05-09 17:11:47 Standard Mac PCI PowerPC RAM is 60NS 5V FPM I believe.
Posted by: Pushpull76 on 2023-05-10 01:56:00 The party is already gone ; even if the modules are compatible, they don't fit in the 9600 (too large).
Posted by: Pushpull76 on 2023-05-10 01:57:38 I didn't find any enthusiast that is producing little lots of 168 pin ram, am I wrong?
Posted by: Phipli on 2023-05-10 01:58:42 Standard Mac PCI PowerPC RAM is 60NS 5V FPM I believe. The 9600 can take advantage of EDO for improved performance.
Posted by: Unknown_K on 2023-05-10 17:01:39 The 9600 can take advantage of EDO for improved performance. Where did you read that? It treats EDO just like FPM and the only way to get any speed boost is to install DIMMs in matching pairs.
Posted by: trag on 2023-05-10 18:59:56 Interesting about the 256 MB modules in a Genesis, as a careful reading of the PCI Power Macintosh Hardware Developer Note and what memory chip addressing schemes are supported will lead to the conclusion that 128 MB per DIMM is the maximum supported. The 7200 on the other hand, clearly supports up to 256 MB DIMMs (according to the HDN), but I've never seen one. Hmmmm. Either I read them wrong, or the HDN for the 9500 is incomplete/incorrect, or that Genesis wasn't what it seemed.
Posted by: Phipli on 2023-05-11 01:07:12 Where did you read that? It treats EDO just like FPM and the only way to get any speed boost is to install DIMMs in matching pairs. Apologies- I misremembered.
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