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| Author | Type of CPU daughtercards for Tsunami-architecture clones? (Read 31090 times) | ||||||||||||||||||
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Jatoba
256 MB  Posts: 270 System 9 Newcomer! 
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on: February 19, 2021, 00:51
Hey'all. To kickstart the revival of System 7 Today, what better than discussing PowerPC Mac Clones? Most here might already know about some clones being capable of having four physical CPU chips (Tsunami architecture), and if I'm not mistaken each CPU is to be added on a separate daughtercard (so 4 daughtercards for 4 CPUs, unlike, say, an MDD, whose CPU daughtercard may include 2 CPUs). The question is, what kind of CPU daughtercard exactly is physically compatible with Tsunami-architecture clones? In Sonnet terminology, from newest to oldest, we had the "MDX" upgrade for G4 MDDs and Xserves, the "ST" upgrades for all PowerMac G4 types with an AGP slot (minus MDD), and the "ZIF" upgrades for G3 and G4 PowerMacs with 66MHz PCI slots. But I assume what the Tsunami architecture accepts probably predates even ZIF. What do those daughtercards look like? How may we obtain them? What third-party sellers sold Tsunami-compatible CPU daughtercards? With any such info, I can start digging up such, and maybe find them used. My goal is to, one day, own a 4-processor Mac OS system. So any info on the above is appreciated. |
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cballero
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1024 MB Posts: 1176 System 7, today and forever
Reply #1 on: May 26, 2021, 03:37
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Wow!  How would this compare to the fabled 68k (I believe) Vampire systems I hear about from time to time? The clones were definitely (could only be) Mac OS 7 for sure, so that would be something to behold! Officially, the Macintosh Quadra 840AV was the fastest 68k Mac and the PowerMac 9600 was Apple's most powerful (PPC) System 7 Mac ever (as far as I know), and of course the monster-'030 Mac, the IIfx, stole the show being the faster System 6 Mac (but unofficially, Dash 30fx was able to overclock the IIfx board up to 55MHz and upgraded the CPU and FPU to 50MHz, making it up to 35 percent faster). And here's a pretty little write-up of this Uber fast (and expensive) 68k Mac  https://web.archive.org/web/20080614225641id_/http://www.davintosh.com:80/2005/11/13/p1010035/
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scouter
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64 MB Posts: 81 Retired IT Administraor
Reply #2 on: May 26, 2021, 09:43
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You may fined this link interesting as it's is about Daystar Digital clones. https://everymac.com/systems/daystar/index-daystar-mac-clones.html
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Knezzen
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Administrator 512 MB  Posts: 608 Village idiot
Reply #3 on: May 26, 2021, 12:08
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PowerMac 7300, 7500, 7600, 8500, 8600, 9500, and early 9600 as well as Umax SuperMac J700 and J700 where all "Tsunami" based and they share the same CPU daughter card type. So any upgrade card that works with these *should* work with other Tsunami based systems as well.
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Old Mac Geezer
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64 MB Posts: 112
Reply #4 on: June 04, 2021, 09:17
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I have a 7500 with a Sonnet G4 1000 installed in it. I also have a ZIF carrier card with a G4 500 mounted that I haven't installed in anything yet.
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