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Re: Voodoo 4 M4800

Posted on Yesterday, 13:00

in Marvin \ Video
I changed the panel backlight control to the scaler instead of the MCU (the board was design to permit both, with a resistor position change). Now, when the system is on, but the screen should be off, it's black with no backlight, instead of black with backlight on. Also tweaked/fixed various other …

Re: Voodoo 4 M4800

Posted on 2024-06-05, 17:30

in Marvin \ Video
@DrAnthony No problem :) . I managed to fix the scaler brightness/contrast bug, and set them to some decent values (I'll tweak it to "perfection" later). Now the display looks so much better: 20240605_192327.jpg Also measured VRMs temperature, as these are not covered at all by the existing heatsink …

Re: Voodoo 4 M4800

Posted on 2024-06-04, 12:32

in Marvin \ Video
Here it is, world's first 3dfx powered laptop :D 20240604_150929.jpg 20240604_150325.jpg 20240604_150320.jpg 20240604_150201.jpg 20240604_150208.jpg https://youtu.be/f1h572CyArk?si=btRd7BH3IB-1CR8d There are still a few things to do, fix brightness/contrast, figure out why the image is shifted right …

Re: Voodoo 4 M4800

Posted on 2024-06-04, 11:32

in Marvin \ Video
Got the other TMDS input working, and programmed the scaler on the VSA-100 card: Filename 20240604_124648.jpg File size 1.94 MiB Views 842 views Filename 20240604_124705.jpg File size 1.61 MiB Views 842 views https://www.youtube.com/watch?v=yuj_HG3H74w Next is to change the FPGA code a bit, for the …

Re: Voodoo 4 M4800

Posted on 2024-06-03, 19:24

in Marvin \ Video
@amadeus777999 Thank you! I got the cursed scaler working. It takes 16:9 resolutions and upscales them to 16:9 1920x1080 20240603_221030.jpg And 4:3 resolutions, adds black borders, and upscales them to 16:9 1920x1080 20240603_221059.jpg Everything mostly works, I fixed a ton of issues (wasted hours …

Re: Voodoo 4 M4800

Posted on 2024-06-02, 10:49

in Marvin \ Video
@supercordo That's actually something that I want to do at some point. @DrAnthony Thanks! Pretty busy indeed, another board will arrive in a week or so :) Using the card via Thunderbolt might actually be OK regarding the BIOS, however: -last time I wanted to develop a thunderbolt device with Intel's …

Re: Voodoo 4 M4800

Posted on 2024-05-30, 18:27

in Marvin \ Video
Probably not, but I'll opensource the design. Some good news, the card works :) Here's it running in a PC, with VGA output: https://youtu.be/MKRf2rdHCFA?si=6mj1gPLrcQtiUlNY Next step is getting the HDMI output from the FPGA working. There is a mux on the board, and the HDMI can be routed to the …

Re: Voodoo 4 M4800

Posted on 2024-05-30, 17:08

in Marvin \ Video
Also made an MXM carrier, so I can bring-up the board in a normal PC: Filename S19.jpg File size 1.4 MiB Views 1513 views This looks absolutely ridiculous: Filename S20.jpg File size 1.91 MiB Views 1513 views Filename S21.jpg File size 1.35 MiB Views 1504 views Filename S22.jpg File size 1.35 MiB …

Re: Voodoo 4 M4800

Posted on 2024-05-30, 17:06

in Marvin \ Video
Filename S15.jpg File size 1.79 MiB Views 1513 views Filename S16.jpg File size 1.87 MiB Views 1513 views Filename S17.jpg File size 1.65 MiB Views 1513 views Filename S18.jpg File size 1.77 MiB Views 1513 views

Re: Voodoo 4 M4800

Posted on 2024-05-30, 17:04

in Marvin \ Video
It is a bit crammed, as it's basically a 64MB V4, plus PCIe to PCI bridge, FPGA, the scaler that's usually inside a PC monitor, a microcontroler, power supplies, various flash ICs/EEPROMs etc. The size of the board is 7x8cm. I just finished assembly (I'll wash the board better later). Here it is …

Re: Voodoo 4 M4800

Posted on 2024-05-30, 15:46

in Marvin \ Video
Laptops with MXM slots, want a video card with an MXM BIOS. Obviously, the usual V4 BIOS isn't MXM compatible. Also, the system BIOS would probably need to be edited to add the VSA ID to the whitelist. I don't want to mess with the system BIOS, or to attempt to make the VSA BIOS MXM compatible. This …

Voodoo 4 M4800

Posted on 2024-05-30, 15:28

in Marvin \ Video
MXM3.0/3.1 TYPE A VSA-100 video card, for finally making a laptop with 3dfx graphics. I'll document it here as I think it will be quite interesting, it's not that straightforward shoving a VSA-100 into a laptop. S1.jpg S2.jpg S3A.png The PCBs arrived yesterday, and they look great: S4.jpg S6.jpg

Re: Voodoo 4400H

Posted on 2024-05-20, 13:00

in Marvin \ Video
I thought about it, but then I'll have to make HDMI addons for 2D cards, also there was no space for another connector (and stacking the connectors and making a 2 slot V1 card would be silly).

Re: Voodoo 4400H

Posted on 2024-05-20, 12:15

in Marvin \ Video
I posted the design files at http://sdz-mods.com/index.php/2024/05/20/voodoo-4400h/ , but I'll attach them here as well. Also posted various assembly options (without extra RAM, without HDMI output). The archive contains the editable schematic and PCB files, PDF schematic, GERBER files, BOM, P&P …

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