3dfx Archive - My 3dfx Website

NitroX infinity

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Re: My 3dfx Website
Reply #60 - 20.08.08 at 00:59:12

The general rule is; 4 chips on the back is an 8MiB card (16 chips total) and 12 chips on the back is a 12MiB card (24 chips total).

Voodoo 2's usually use 512KiB chips.

But your first one seems special. It either has 12 1MiB chips (most likely) or 8 512KiB + 4 1MiB chips.

I'm willing to bet it's a 12MiB card so you can run them together.

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rottentreats God Member Offline 3dfx > Reality Posts: 616 Minnesota [USA] Gender:	Re: My 3dfx Website Reply #61 - 20.08.08 at 01:07:14 Ok, that's what I figured. The first card is a 12mb Voodoo2 straight out of the box. The second card is a 12mb BlackMagic Voodoo2. I just found it odd that both were 12mb, but one had less chips. You however gave me the information to understand this.. thank you. FYI - They DO work together in SLI.
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G1nX Senior Member Offline Running NSK Guardian Posts: 466 Romania Gender:	Re: My 3dfx Website Reply #62 - 20.08.08 at 02:08:59 The card with no chips on the back is a 3dfx (stb) V2 1000 being a later model the 1mb memory chips were available so they used those. One interesting question arises what if you soldered on the back of 12 memory chips each 1mb in size. Would you end up with a functional 24mb V2 card? with two of these you would end-up with 48mb in sli
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m14radu God Member Offline Take your chance ! Posts: 555 Timisoara, Romania Gender:	Re: My 3dfx Website Reply #63 - 20.08.08 at 08:20:30 AFAIK the V2 supports only 12Mb of memory, and there is no card with more than 12Mb . ( not even a prototype ). I have to check the V2 datasheet !
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NitroX infinity

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Re: My 3dfx Website
Reply #64 - 20.08.08 at 11:48:36

m14radu wrote on 20.08.08 at 08:20:30:

AFAIK the V2 supports only 12Mb of memory, and there is no card with more than 12Mb . ( not even a prototype ).

I have to check the V2 datasheet !

Not true. From Gary's 'Trivia' page:
Quote:

4) A single Voodoo 2 TMU supports 2, 4, 8 or 16 MB of ram

So that's 32MiB for just the TMU's alone. Don't know how much the FBI supports though, thought it was 8MiB max. And an FBI can use up to 3 TMU's.

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« Last Edit: 20.08.08 at 11:48:54 by NitroX infinity »

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rottentreats God Member Offline 3dfx > Reality Posts: 616 Minnesota [USA] Gender:	Re: My 3dfx Website Reply #65 - 25.08.08 at 05:34:28 Ok, yet another little thing I want to clear up: Known 5500 AGP Production PCB Dates: 1900 2100 2300 2500 Did I miss any?
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NitroX infinity YaBB Moderator Offline Posts: 1936 The Netherlands Gender:	Re: My 3dfx Website Reply #66 - 25.08.08 at 12:24:38 http://www.3dfx.cz/articles/rev.htm
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G1nX Senior Member Offline Running NSK Guardian Posts: 466 Romania Gender:	Re: My 3dfx Website Reply #67 - 25.08.08 at 13:40:51 There are still a few non-prod cards not listed on that site like Rev A0 0900 Rev A0 1500 and maybe there are some other protoype revs out there. For poduction i don't think it's missing somethin' ...
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rottentreats God Member Offline 3dfx > Reality Posts: 616 Minnesota [USA] Gender:	Re: My 3dfx Website Reply #68 - 03.09.08 at 01:11:23 Is there anything special about this Raven?
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rottentreats God Member Offline 3dfx > Reality Posts: 616 Minnesota [USA] Gender:	Re: My 3dfx Website Reply #69 - 03.09.08 at 07:03:28 The reason I ask is because if you look at this animated GIF of both my Raven and Exxe's Raven, you will see there are a few differences... do they mean anything? Click to Enlarge -
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NitroX infinity YaBB Moderator Offline Posts: 1936 The Netherlands Gender:	Re: My 3dfx Website Reply #70 - 03.09.08 at 10:37:04 I think it's just an earlier revision.
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paulpsomiadis God Member Offline -=3Dfx still rox!=- Posts: 2011 Newcastle U.K. Gender:	Re: My 3dfx Website Reply #71 - 04.09.08 at 01:58:46 The cards are identical - just components from a differnt supplier. (and like @NitroX said - probably just a different revision)
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rottentreats God Member Offline 3dfx > Reality Posts: 616 Minnesota [USA] Gender:	Re: My 3dfx Website Reply #72 - 04.09.08 at 02:42:11 That's what I figured... but what's up with the holes in the PCB that are filled on his board? I'm just curious...
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NitroX infinity

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Re: My 3dfx Website
Reply #73 - 04.09.08 at 12:34:00

This is how a product with a PCB is usually made;

First you have the blank PCB, components are placed on it. But rather than soldering each component seperately, the PCB with it's components rolls over a bath of liquid tin (or whatever they use to soldier) and the backside slightly touches this liquid stuff.

So any small holes on a pcb usually get filled up.

So the question is not 'Why are the holes filled on your PCB' but rather 'Why aren't the holes filled on the other PCB' Wink

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rottentreats

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Re: My 3dfx Website
Reply #74 - 04.09.08 at 16:50:26

NitroX infinity wrote on 04.09.08 at 12:34:00:

So the question is not 'Why are the holes filled on your PCB' but rather 'Why aren't the holes filled on the other PCB' Wink

Well, that is a good question! I got this card and a few others from an old arcade guru. He said the card was probably pulled from an arcade machine and could be special somehow. Probably not, but it's on eBay either way right now

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