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Re: Faulty voodoo 2

Posted on 2023-05-01, 08:39

in Marvin \ Video
I sanded, scanned all the layers, traced everything and reversed the schematic a few years ago. Any "extra" pins are either tied to GND or VCC, but removing the TMU and measuring directly its pins confirms that all those GND and VCC pins are internally connected to each other. Sorry to dissapoint.

Re: Faulty voodoo 2

Posted on 2023-05-01, 08:09

in Marvin \ Video
Yeah, the datasheet is preliminary, it even mention SGRAM support IIRC. http://sdz-mods.com/wp-content/uploads/2023/0 … /7d-scaled.jpeg http://sdz-mods.com/wp-content/uploads/2023/0 … 0068-scaled.jpg

Re: Voodoo 2 card issues

Posted on 2023-04-13, 11:34

in Marvin \ Video
TMU power pins are: 15 27 31 43 58 73 78 96 109 116 128 140 143 153 163 173 183 187 203 The RAMDAC should provide a clock to the TMU, you can check TMU pin 186 if you have an oscilloscope. You could also check TMU pin 208, RESET. This should be directly connected to FBI pin 197. Also, gently poke …

Re: Voodoo 2 card issues

Posted on 2023-03-07, 07:08

in Marvin \ Video
R51 needs to be present, it's quite important. Actual value is not that critical, 10-22R should be fine, as it's just a series termination resistor. For a quick test you can replace it with a blob of solder and see if the card works.

Re: 3Dfx Voodoo 2 PCB SLI Bridge / SLI Cable

Posted on 2023-02-18, 12:21

in Marvin \ Video
Took a little longer since I forgot to choose ENIG for the first PCBs and ordered again. Here's how they look: IMG_0127.jpg IMG_0129.jpg IMG_0131.jpg IMG_0132.jpg The logo looks way better in person than in the photos. As a couple of suggestions: -remove the 4 vias in the corners as they serve no …

Re: 3Dfx Voodoo 2 PCB SLI Bridge / SLI Cable

Posted on 2023-01-09, 16:02

in Marvin \ Video
Sphere478 wrote on 2022-12-30, 17:50: matze79 wrote on 2022-12-30, 08:25: I’m eager to see the PCB Version 😀 My need for one has been postponed. So no immediate plans of ordering. You could though 😀 I ordered a bunch of PCBs and ordered yours as well, in green and in black. Will post pics when they …

Re: 3Dfx Voodoo 2 PCB SLI Bridge / SLI Cable

Posted on 2022-12-31, 08:17

in Marvin \ Video
Only digital signals there, scanlines are visible probably due to some sync issues, in the SLI connector there is a SYNC signal, and only 1 RAMDAC is outputting video, but both RAMDACs are feeding clocks to the FBI (and TMUs from there), so maybe the issue is that there are two freerunning clock …

Re: AGP Power Improver

Posted on 2022-12-29, 12:17

in Marvin \ Video
3.3V and VIO can be connected together for AGP 1.0 only, after that VIO is lower, 1.5V or 0.8V for AGP 2.0 and 3.0. No clue how much the 5V and 12V rails are used on old AGP cards. I can highlight, but a bit later today.

Re: 3Dfx Voodoo 2 PCB SLI Bridge / SLI Cable

Posted on 2022-12-28, 07:03

in Marvin \ Video
Wow, the old logo turned out great! Nice job! The bridge actually passes dogital signals, when SLI is active only 1 of the 2 RAMDACS is used (the one that detects the 75R VGA load). The signals passed through the bridge are digital signals from the FBI that go to the RAMDAC and some SLI sync …

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