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| Author | WTB: Power Mac 7600 RAM (Read 133257 times) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Europa
64 MB  Posts: 109 she/her 
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on: May 10, 2023, 18:24
I'm looking to buy pairs of 168-pin FPM or EDO 5V DIMMs for my Power Mac 7600, ideally at least 64MB each. My budget isn't super big, but hopefully I can find something. Thanks! 
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scouter
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64 MB Posts: 81 Retired IT Administraor
Reply #1 on: May 10, 2023, 20:09
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Good luck with that one I have been looking for similar ram for my 6400/200 for ages and not found any yet at the right price. Christopher.
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Europa
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64 MB Posts: 109 she/her
Reply #2 on: May 10, 2023, 20:23
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Thanks! Same to you. I've seen some on eBay, but it's about $20/stick, which is a bit steep but seems to be what the going price is.
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Knezzen
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Administrator 512 MB  Posts: 608 Village idiot
Reply #3 on: May 10, 2023, 21:28
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I might have a few around still, not sure what size though. I'll have a look this weekend
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Europa
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64 MB Posts: 109 she/her
Reply #4 on: May 10, 2023, 23:07
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Thanks for looking!
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ovalking
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128 MB Posts: 199
Reply #5 on: May 11, 2023, 22:24
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The 168 pin 70nS DIMMs were used in a lot of 2nd gen Power Macs, so keep an eye out for any machines going spare. I got most of my RAM collection from Macs in the skip. Never come across anything >32MB myself, but a generous 8 slots means you can still get a good total from smaller sticks. I find the 208M in my 8500 is plenty, and can run with VM off, and a good size RAM disk. Only time I might have to quit some apps is if someone sends me some rediculously enormous image. 64MB is the official max DIMM size, but apparently 128MB DIMMs work too. Anyone using these?ù
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Europa
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64 MB Posts: 109 she/her
Reply #6 on: May 11, 2023, 23:41
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Thanks for the info! Yeah, 8 x 16MB, for instance, is still a very good amount. I’ll look around!
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Knezzen
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Administrator 512 MB Posts: 608 Village idiot
Reply #7 on: May 15, 2023, 11:07
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I searched everywhere and found nothing. Sorry  I have 512MB in my 8600 which is a an insane amount for 7.6.1, but I intend to keep it. Good to have I'll give you a shout if I stumble upon something.
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Europa
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64 MB Posts: 109 she/her
Reply #8 on: May 15, 2023, 22:43
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Sounds good, thanks! I was able to dig up 72MB of RAM, so now I have 120MB total. Not terrible by any means, but could be better for sure 
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wove
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1024 MB Posts: 1363
Reply #9 on: May 15, 2023, 23:44
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Good to hear you found some more from your machine. 128MB on a 7600 is quite good. Modern perspective is that is not much, but during the reign of PM 7600s 128MB would be considered very lush. Plenty enough for you to start your RPG project in HyperCard.
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Bolkonskij
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Administrator 1024 MB Posts: 2023
Reply #10 on: May 16, 2023, 08:34
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In fact, it's an incredible amount for the 7600. Any late System 7 era Mac should be fine with 64 MB, which was plenty back then. Applications had such humble RAM requirements that even 64 MB allowed you to run multiple applications like Photoshop, iCab, SoundJam and a messenger all at the same time. Talk about efficiency :-)
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Knezzen
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Administrator 512 MB Posts: 608 Village idiot
Reply #11 on: May 16, 2023, 08:48
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Indeed. 128MB in my old 5500 never gave me any "out of memory" errors in 7.6.1.
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wove
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1024 MB Posts: 1363
Reply #12 on: May 16, 2023, 15:11
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Ah, a PM5500 was a seminal Mac in our household. A Christian Academy closed and I went to the auction where they sold off their stuff. I picked up a PM5500, A Color LaserWriter, an Apple scanner, and a QuickTake 200 camera. The kids were in junior high school at the time, and it became the family workhorse, where it was used and probably abused for a decade. I most likely started my time on System 7 Today using a PM5500. I do not recall how much RAM it had, but it always seemed to be enough. I think of it as the pinnacle of Apple's AIO machines. Our family was organized around HyperCard Stacks with recipes, calendar, addresses. The kids did whatever it is kids do, I played around with graphics with the scanner and camera. We made card and wrote letters in ClarisWorks. The AV inputs allowed for use with a VCR, or game console. Of all the computers I/we have owned, the PM 5500 was the most versital and most heavily used and enjoyed.
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Europa
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64 MB Posts: 109 she/her
Reply #13 on: May 16, 2023, 15:24
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Quote from: wove Plenty enough for you to start your RPG project in HyperCard.Definitely! I just need to actually start it xD My dream for my 7600 is to be able to take video recorded using my VHS-C camcorder and edit it (maybe even make a YouTube video or two with it!) and so that's primarily what I'm trying to beef it up for. It can already run very comfortably without VM enabled, but if anyone has guidance on what a good amount to have for dealing with 640x480 video is, I'm all ears
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wove
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1024 MB Posts: 1363
Reply #14 on: May 16, 2023, 17:31
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Video capture on old PowerMacs is more constrained by bus and drive speeds than by memory constraints. The period software was written to deal with the typical available RAM and will work fine with what was generally available. Video capture worked with the video stream being digitized in the video capture device, and the raw digitized video being dumped in mass to the hard drive. When the capture was stopped the capture software would pull the raw data dump from the hard drive back in and process it into a usable format. The initial dump of raw data comes in as a very fast stream and is most reliably written to a disk, that is fast, clean and not fragmented. Often that was done to a specific separate and empty drive just for that purpose. And it is even helpful to install a fast SCSI PCI card to drive a separate fast SCSI drive. If you are pulling from something like a VCR you can break the capture down into separate shorter segments and save them, coming back later to stitch them together into a continuous movie. Editing software has really not changed a great deal overtime, but the rendering time required will be at least an order of magnatude longer on the old PowerMacs than on newer hardware, even though the editing and stitching process is much the same. This is where lots of RAM will be most noticeable. This might be an area where a device like a Blue SCSI would really prove its worth. But in any event the successful capture of video on older Power Macs, is much more dependent on the speed and reliability of your storage devices than it is on the amount of RAM installed. Apple published a book on video capture and editing back during that time frame. Sorry to say I do not recall the name, but it was/is and excellent manual on the successfully preforming that task with what was available at the time.
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