Fizzbinn
Well-known member
I was fortunate enough to pick up a Daystar PowerCache Quadra and have just started to dig into it. I've long wondered if L2 Cache would improve performance on 68040 machines as much as it does for 68040 and PPC ones.
From the above linked archived data sheet:
I lucked into the 33Mhz rated version:
I plan test it out in my 25Mhz Quadra 700, Centris 650* and Quadra 610. The Quadra 610 requires an adapter board, I believe I can use the one from my 486 DOS compatibility card. I also have an untested 20Mhz Centris 610 logic board that this will give me an excuse to try. I don't have a 33Mhz 68040 Mac that has a compatible PDS slot, but am considering modifying my Centris 650 to be a Quadra 650 (clock chip and resistor mod).
*Spoiler, it locks up during start up in my Centris 650 when loading the QuadraControl v2.3 control panel under System 7.1 and 7.5. Hmmm, looking at the above linked datasheet the Centris 650 is not mentioned... only the Centris 610: "almost any Quadra and the Centris 610". Seems very odd but perhaps more reason to try the mods to make it a Quadra 650.
Will post my Quadra 700 test results shortly.
From the above linked archived data sheet:
FastCache Quadra 128K Static RAM Cache for Quadras and Centris 610
DayStar’s FastCache Quadra increases performance 20 to 40% in almost any Quadra and the Centris 610. A low cost cache card, the award winning FastCache Quadra puts the “zip” back in your Mac—it even makes a Quadra 700 or 900 run as fast as a Quadra 950! From desktop publishing to spread- sheets or database software, it will make your machine run faster and more efficiently, saving you time and money.
I lucked into the 33Mhz rated version:
I plan test it out in my 25Mhz Quadra 700, Centris 650* and Quadra 610. The Quadra 610 requires an adapter board, I believe I can use the one from my 486 DOS compatibility card. I also have an untested 20Mhz Centris 610 logic board that this will give me an excuse to try. I don't have a 33Mhz 68040 Mac that has a compatible PDS slot, but am considering modifying my Centris 650 to be a Quadra 650 (clock chip and resistor mod).
*Spoiler, it locks up during start up in my Centris 650 when loading the QuadraControl v2.3 control panel under System 7.1 and 7.5. Hmmm, looking at the above linked datasheet the Centris 650 is not mentioned... only the Centris 610: "almost any Quadra and the Centris 610". Seems very odd but perhaps more reason to try the mods to make it a Quadra 650.
Will post my Quadra 700 test results shortly.
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