ViRGE is unlikely, as the RAM chips are too slow. ViRGE used RAM with 55 to 45ns. The term "Vision" was used by S3 for the older chips, like 864, 964, etc. Could be one of that.

could be, even though it's rare to see them with 256k rams, but there are some odd cards out there.

hold on, found something interesting here:

so seems to be an ATI card, could be a Mach32/Mach64 maybe?

but then again, the package looks a lot more like a S3 Vision chip, very curious.

aaronkatrini wrote on 2020-03-15, 11:29:

Hi all, […]
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Hi all,

I've received this Video Card and was curious of what chip runs on it. I've never encountered anything similiar.
It runs on PCI bus and it is branded as Olivetti one. Any ideas?

https://imgur.com/a/7y8qiBg

I saw the marking "GO2019" and with a some googling it came up as a "Vision-40" from these PDFs:
http://minuszerodegrees.net/manuals/Olivetti/Olivetti - Appendix C - Video cards used in Olivetti computers.pdf
https://secure.corradoroberto.it/doc/olivetti … stems2/cap1.pdf
https://secure.corradoroberto.it/doc/olivetti … stems2/capa.pdf

The heatsink seems to be glued into the chip and removing it would be a risk. Also on the VGA connector, one of the pin holes is blocked, so I couldn't connect the VGA cable.

My assumption is that it is a "S3" card, the name "vision" and also the layout of the board reminds me of a Virge card, but not sure...
Any suggestions are hightly apprisciated.
Thanks in advance 😀

Yes Vision points to that, you are right See also:
https://www.vogonswiki.com/index.php/S3
😁
The RAM is dual ported also known as VRAM, there is 1MB VRAM on it.
So there is only S3 964 or S3 968 left (the 8xx are DRAM)
Give the low end RAMDAC (only 110MHz) and only 1 MB VRAM, it is to 99% the S3 964 chip

I seem to remember that some monitors did not have all the pins on the vga cable.

The pin that is blocked on that card is pin 9, which is the "KEY" / +5V DC

If you don't have a monitor with the pin not on the connector, I would try with a vga extension cable, removing that pin on the male end if needed.

Ok.
so I didn't want to ruin a working Vga cable by removing one pin, so I did something else.
I set the primary Video Card on BIOS the one from the AGP slot, and inserted the card in a PCI slot. And violà... it was a Ati Mach32!

https://imgur.com/a/vqwvFmA

Really strange though, I could've sworn it was an S3 card by the layout. Another mystery unveiled I guess.
Thanks everybody for your suggestions and help!

Btw, good call @imi 😉

another mystery solved 😀