Any Mach64 ISA Information? \ VOGONS

Any Mach64 ISA Information?

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First post, by CU_AMiGA

Posted on 2007-08-21, 17:45

CU_AMiGA Offline

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i received a Mach64 ISA card this morning, looks nice! Does anyone have any information on this card or know any links. I have looked, but found hardly any at all. I see empty chip sockets that look like for the vid mem so i guess i can upgrade the vid ram to whatever using certai memory chips. I know this Mach64 ISA has 1mb RAM by default. I am using this card as part of my old Amiga 4000/PC hybrid project! 😁

Regards

Reply 1 of 4, by keropi

Posted on 2007-08-21, 18:27

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i wonder if this ATI chip still has the scrolling prob... as I said on EAB, try a commander keen game (3+) and report on the motion...

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Reply 2 of 4, by Jorpho

Posted on 2007-08-22, 04:25

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Speaking of ISA ATI cards, what's with that weird connector that some of them have on the edge of the card opposide the ISA connector? Looks like, oh, one of these:

Reply 3 of 4, by 5u3

Posted on 2007-08-22, 12:02

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This is an 8-bit feature connector. See here for details.
ATI cards had their own proprietary feature connector, the ATI Multimedia Channel (AMC).

Reply 4 of 4, by keropi

Posted on 2007-08-24, 18:20

keropi Offline

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that connector allowed other cards like a tv-tuner/mpeg decoder to write direclty to the vga's VRAM, like modern tv-tuners do through DMA... ISA was not speedy enough to allow such transfers, so they invented a more direct way

🎵 🎧 ⏳ ⚡ PCMIDI MPU , OrpheusII , Action Rewind , Megacard and 🎶GoldLib soundcard website

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