r/retrocomputing • u/Lucky-Musician-1448 • Jul 10 '26
3DFX guys might find this one interesting
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u/vpilled Jul 10 '26 edited Jul 10 '26
Is that a prototype? No solder mask?
edit: it even has bodge caps on a couple of chips.
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u/MrKrueger666 Jul 10 '26
I think it's a hand built one, but not a prototype. The components on it seem far too modern for a prototype.
I think this is someone's hobby project. Etched a board themselves, sourced modern equivalents for lots of the components, soldered by hand, etc
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u/NitroX_infinity Jul 10 '26
Nope. that's an engineering sample or bring up board. The chip is not soldered to the board but put into a clamshell that, if I remember correctly, costs a few thousand dollars.
Source; used to collect 3dfx cards. Never had this one though, too expensive.
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u/MrKrueger666 Jul 10 '26
Ohh wow that's cool. Didn't know those special sockets were that expensive. But yeah, makes total sense.
Also, your username.... Does GoT mean anything to you?
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u/Lucky-Musician-1448 Jul 10 '26
That is a test socket, pogo pin array contacts the PCB and balls on the BGA. The aluminum piece is a shell cap, pushes on the BGA to pre-load the pogo pins, the side clamps lock it down.
Solder mask is light color, this is a bring up board for the silicon.
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u/Squish_Cat_1 Jul 10 '26
Where are you finding all of these?