Had a very nice find recently.
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This Powertech WDC card seems like a very nice example of a WD90C33 VLB. Should be one of the fastest out there. I hope to do some comparison testing some day.
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This Real3D SFA-136-A is apparently extremely rare, even in comparison to the Starfighter PCI (I also have one of those but several caps corroded traces on it so it is nonfunctional). I can't find anything about these online other than a picture on yjfy's website which seems to be based in China (and is down right now?). Does anyone know what this card was used for? I'm inclined to think it was used for simulators or arcade machines, as there is no indicator that these were ever sold at retail. I'll be testing it here shortly, but I'm not expecting it to work with just any drivers.
EDIT: Well, I threw it in my 440BX test machine and it worked immediately. Here is what the video BIOS shows at startup:
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Windows 98SE detected it as an "Intel i740 Win9x PV4.0 with Video Capture". Strangely, dxdiag detects 71.5MB of video memory... maybe this is related to some AGP trickery or just a glitch. It seems to work fine in 3D accelerated games of the time. It also added a "Gfx829, WDM Video Capture for Intel740" device under Multimedia in device manager.
I believe these were from built in drivers in 98SE, but I'm not 100% sure as I was using an installation that had other i740 installed previously.
Anyway, I'm happy that it works, but also very curious as to what exactly it is or what it was used for, if anyone can find any information anywhere.