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Wanted: Software and documentation for Phase 5 Maccelerate 750 card
Posted by: Coloruser on 2026-08-14 09:35:37
I have a Phase 5 Maccelerate 750 G3 card in my PCI Power Macintoshs (9500, 8500). It runs fine with PowerLogix CPU Director. The card has a dial to set the bus speed - I guess - and it would be nice to know what the dial´s settings are before tinkering too much with card and frequently pull it out from fragile CPU connector of the Tsunami/Nitro boards. I have found manuals for the older 275/300 versions with the dial setup. As my card is also set to "2", I guess, the CPLD calculated the final speed accordingly.

0 equals 46.2Mhz
1 equals 50Mhz
2 equals 55Mhz

Any proof of this?
Posted by: Phipli on 2026-08-14 09:55:46
I have a Phase 5 Maccelerate 750 G3 card in my PCI Power Macintoshs (9500, 8500). It runs fine with PowerLogix CPU Director. The card has a dial to set the bus speed - I guess - and it would be nice to know what the dial´s settings are before tinkering too much with card and frequently pull it out from fragile CPU connector of the Tsunami/Nitro boards. I have found manuals for the older 275/300 versions with the dial setup. As my card is also set to "2", I guess, the CPLD calculated the final speed accordingly.

0 equals 46.2Mhz
1 equals 50Mhz
2 equals 55Mhz

Any proof of this?
This is where you tell me you'd have preferred it in English.

Is this what you need?
Posted by: Coloruser on 2026-08-14 10:04:59
This is where you tell me you'd have preferred it in English.

Is this what you need?
Thanks/Dankeschön.

I guess I can live with english.🙂

That absolutely makes sense and now I also know, what happens if the card is overclocked (mine is stock and I´ll keep it there). The setup is more simple (1 dial) than my own design back then with Met@box (3 dials).
Posted by: Phipli on 2026-08-14 10:11:33
Here is the English section for anyone who needs it. I'll stick it on my site too with others I've uploaded. I should have before.

Sadly I don't have the software sorry.
Posted by: Phipli on 2026-08-14 10:27:30
At some point they used the attached software, but they later released "g3config.sea.hqx". I can't find a copy of the latter.
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