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Amiga computer related discussion => Amiga Hardware Issues and discussion => Topic started by: Jose on May 19, 2003, 04:29:34 PM
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I've read on various places in the past that the RC50As are the best to overclock, but I didn't even knew there was an RC60As version. Are these just the same with different label cause they can stand that speed without problems?
By the way, I'm gonna change a Blizzard1240 to an 060, when I don't know, but are you people interested in some info about the results? I don't know much about electronics but I have a non amigan friend that has the necessary equipment and will do the job for me. As far as I've read here and there, you need a voltage regulator and a new oscillator, but I'd like you to confirm also that the pin configuration is the same, cause I've seen people saying it is, others it's not.
Help me out with this, and I'll post the results if you're interested. It's amazing that nobody still has posted this info on the net (afaik).
Cheers
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The 040 and the 060 doesnt have exactly the same pin configuration, see the usermanuals:
68040 User Manual (http://e-www.motorola.com/brdata/PDFDB/docs/M68040UM.pdf)
68060 User Manual (http://e-www.motorola.com/brdata/PDFDB/docs/MC68060UM.pdf)
Though it is absolutely possible and proven that a turbocard which can handle both the 68040 pinout and the 68060 pinout can be done as the changes isnt major. But the turbocard must be designed for it, a card not designed for both the processors cant be up or downgraded easily.
If I dont remember wrong the Blizzard1240 was marketed as "68060 upgradable" so a new oscillator and a voltage-regulator should hopefully do the job, but dont forget to check for possible jumper settings on the Blizzard1240 which might have to be changed to upgrade successfully.
Good luck!
/Patrik
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Hmm, damn jumpers. I'm gonna do this slowly as I have time by the way.
I guess I should check that out in more detail before I do anything. Does someone knows the different jumper configs? :-?
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On the first page of the Blizzard1240 User Manual (http://www.dcecom.de/pub/Manuals/Blizzard1240UK.pdf) DCE say that the differences between the 1240 and 1260 are very small and that they can upgrade a 1240 to a 1260 for you.
The big question is if they do something more when upgrading than just replacing the 68040 with a 68060 and exchange the crystal and voltage-regulator.
Btw, is the 68040 on the Blizzard1240 socketed and is it a Phase5 or DCE manufactured turbocard?
/Patrik
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Hi. No it's a Phase5 one, and it's not socketed. But the card is labelled 1260.