ISA based 3D accelerators?

Discussion about old graphics cards, monitors and video related things.

Re: ISA based 3D accelerators?

Postby squiggly » 2018-2-05 @ 05:26

Hamby wrote:Were there ever any ISA 3D accelerator cards? Even the original Voodoo was PCI, iirc.

Interestingly the 3dfx guys considered whether to make Voodoo compatible with ISA/VLB but chose to break with the past and support PCI only. Saw this in a great video, worth a watch:
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Re: ISA based 3D accelerators?

Postby spiroyster » 2018-2-05 @ 14:32

@SteveC @Jo22
Yes thanks. Matrox ftp does have PG-XXXX files, which I already had, but can't find anything on SM-XXXX series (iirc thats why I contacted Matrox UK). I may have to revisit this as a summer project this year.

Here are some low-res images (dug out of my piccyes folder, cards are in storage somewhere) of the early ISA '3D accelerator' cards. The model number relates to the max screen resolution supported by said card.

SM-640 (IBM PGC compatible, unknown how this is actually implemented)... NOT MINE (found on vcf iirc) !!

SM-1024 (TMS320 PCB is from SM-1281, memory looks to be the same amount as 1024 rather than 1280(1)).

PG-1281 (TMS34010), max res is 1280 (the 1 in the 1281 means it was later a rev to PG-1280)

I don't have any of my Iris Vision (and its MCA not 'thread relevant ISA' anyhows). If anyone wants higher res (ya know, to see the chip numbers in 'all), next oppotunity I get, I'll dig them out and take some better snaps.
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Re: ISA based 3D accelerators?

Postby PDAisAok » 2018-2-10 @ 07:30

The Virtuality VR system used ISA based 3D video cards. The entire system was on a 14-slot ISA backplane

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Re: ISA based 3D accelerators?

Postby SuperHanSolo » 2018-2-13 @ 14:03

The Serpent Rider wrote:For gaming? No. VESA local bus had at least one: ... r-vlb.html

I have one of these in the original box :)
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Re: ISA based 3D accelerators?

Postby vetz » 2018-2-13 @ 14:28

dirkmirk wrote:The photos dont work anymore but I'll always remember when Vets found a boxed version of the Matrox Impression, only supported 3 games.

viewtopic.php?f=5&t=17341&start=4320#p365941 ... n-isa.html

Pictures fixed in the original thread.

Some screenshots of the supported games here: viewtopic.php?f=63&t=33483&p=381809#p381809
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Re: ISA based 3D accelerators?

Postby Scubs » 2018-2-13 @ 17:18

Some mid 90s arcade systems had 3d isa cards. They weren't truly ISA. Just physically ISA.
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