I've been playing with the Vortex86 range of processors from DM&P for nearly 15 years, initially as a proto-raspberrypi running linux, and more recently as an ultra-portable DOS gaming platform. For a currently-manufactured chip it has a number of super useful features for a modern DOS gaming …

sorry, I've been busy with work the drivers did install and work okay sadly usb doesn't work, it even doesn't get detected in device manager the board has 2 com headers, I've soldered a couple serial headers but they didn't work, it's simply that windows 98se doesn't detect half of the hardware …

Wow, the performance increase going from the 166/300Mhz parts to the 800/933Mhz parts is.... extremely modest. Any idea what's going on with that? So the original Vortex86 was based on the Rise MP6 which I believe is like a Pentium in terms of architecture. I don't think the Vortex86SX and later …

keenerb wrote on 2021-04-13, 13:24: also your open-source carrier link doesn't seem to have any files or documents or anything, just a picture of it? I haven't released the project yet so the source files are only available in Circuitmaker software, once I get rev2 tested I'll generate gerbers etc

I successfully used https://www.helpjet.net/Fg-87913681-84611383.html (EDIT : wrong link) as VGA drivers on a vortex DX module - https://www.vogons.org/viewtopic.php?f=25&t=80651 As you say BIOS USB mouse support is super buggy. It might be worth examining the board to see if there's anything that …

They don't say anything about USB drivers for any OS and dos only mentions network and possible serial interface. I bring it up because of this recent post https://www.vogons.org/viewtopic.php?f=46&t=79939 where no USB drivers were found and graphics drivers were also problematic. Yes the Vortex86 …

Driver support for the different OSs will be annoying. It runs pretty well on Win98- drivers are available for the graphics/sound/network/usb. 2000/XP supposedly work too but I don't have much interest in that really Ndis2 drivers work on MS network client for DOS, I haven't tried the ODI or packet …

ICOP manufactures some super-small (70mm square) Vortex86-based System-on-Modules - https://www.icop.com.tw/product/SOM304RD-VI So I thought they'd be great for building a lil DOS gaming PC - weeceeview.jpg Of course it requires a carrier board with the appropriate connectors, so I designed one and …

matze79 wrote on 2021-02-18, 11:04: Nice work 😀 did you use Output Stage from Datasheet ? (did not yet compare it..) Nah just a DC blocking cap. Some cheap CS4235 soundcards did it that way so I just copied that 😀

ExplodingLemur wrote on 2021-02-11, 21:58: Do you mind if I try to re-do the layout to enhance analog performance and possibly add an OPL3? Yes I'd love for you to do that. Please keep us updated!

I wanted to build a mini DOS gaming PC (which has been discussed here : https://www.vogons.org/viewtopic.php?f=5&t=78370) and frustrated by the cost and lack of availability of PC/104 soundcards, I decided to make my own. The original revision had a few issues (incorrect gameport pinout, lack of …

I wonder if he posts on here? Hi, yeah I lurk here, thanks for all your kind words! I was gonna make a thread here about the PC104 soundcard when I got the second revision done. I had to add an I2C EEPROM to the board because I couldn't figure out how to get the CS4237 to work without one (I …

I've been playing with PC104 CPU boards recently and was frustrated by how expensive it is to plug an ISA card into them. Most adapters are more than $100 and that seems ridiculous when you could probably make your own adapter reasonably easily using IDC connectors and ribbon cable. But I was doing …

What about the Boca cards? Do they work the same as the Paradise? I don't have Paradise EGA, but I do have Boca. I'm not sure, but if I run Rambo 3 in Boca mode on my Paradise I get exactly the same result (low-res, inverted vsync, 17.8KHz hsync). So the Boca and Paradise cards must have very …

Paradise EGA can do 64 colours in lowres on a 5154? That deserves more investigation. It certainly does appear so. I don't have a 5154 to test it on, but I just built an MCE2VGA. It does 64-color mode selection based on VSYNC polarity just like the 5154 does, and doesn't (AFAIK) have a manual …

I decided to take a deep dive into the EGA capabilities of my Amstrad PC1640. Had lots of fun along the way - built a circuit to convert CGA/EGA to analog for the GBS-8200, using an EEPROM for the encoding logic (got the idea from the IBM5154 service manual). Also got EGA hi-res mode working on the …

HI! First time poster, long time lurker. I'm starting a video series where I install some cool things in my Amstrad PC1640. First up it's an XT-IDE clone that I got real cheap from Russia : https://www.youtube.com/watch?v=7kQ6Flyze5A