Re: OPL2LPT

Posted on 2024-07-08, 21:39

by

by dJOS

in Marvin \ Sound

in Marvin \ Sound

Unfortunately, most native English speakers don’t speak additional languages. I learnt French in high school, but never had a chance to use it in real life, so 30 years later, all I can recall is “I’m thirsty”. In my defence, I do live in Australia which is a very long way from everywhere. While …

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Re: OPL2LPT

Posted on 2024-07-05, 23:03

by

by dJOS

in Marvin \ Sound

in Marvin \ Sound

English just happens to be time most spoken language globally, and by a massive margin. So it does make sense to use it as the standard here. I’ve helped folk using other languages to ask questions on GitHub many times, and it’s quite painful relying on Google translate. The thing that really causes …

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Re: OPL2LPT

Posted on 2024-07-05, 22:18

by

by dJOS

in Marvin \ Sound

in Marvin \ Sound

I don’t see how that would help, it would just move Google translate from one end of the conversation to the other. So, you operate under the impression that everyone just speaks a single language? Unfortunately, most native English speakers don’t speak additional languages. I learnt French in high …

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Re: OPL2LPT

Posted on 2024-07-05, 04:54

by

by dJOS

in Marvin \ Sound

in Marvin \ Sound

I don’t see how that would help, it would just move Google translate from one end of the conversation to the other.

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Re: Video RAM chips for a UMC TK-85C408VGA ISA Video Card?

Posted on 2024-04-10, 00:25

by

by dJOS

in Marvin \ Video

in Marvin \ Video

As promised, the pictures of my card. It's a bit dirty but I'll try to clean it as soon as I can. It uses the same chip model as suggested by @pshipkov, but with a different speed. Does anyone know what the JP5 jumper does? It seems to be related to installed ram size, my card didnt work until I …

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Re: Video RAM chips for a UMC TK-85C408VGA ISA Video Card?

Posted on 2024-04-08, 23:27

by

by dJOS

in Marvin \ Video

in Marvin \ Video

Cheers, some pics would be helpful. As promised, the pictures of my card. It's a bit dirty but I'll try to clean it as soon as I can. It uses the same chip model as suggested by @pshipkov, but with a different speed. Cheers, your cards PCB is identical to mine, even down to the footprint labels.

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Re: Video RAM chips for a UMC TK-85C408VGA ISA Video Card?

Posted on 2024-04-08, 23:22

by

by dJOS

in Marvin \ Video

in Marvin \ Video

rasz_pl wrote on 2024-04-08, 15:17: really curious now if adding 512KB translates into any performance gains It shouldnt make any difference, unless adding more ram also increases the memory bus width.

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Re: Video RAM chips for a UMC TK-85C408VGA ISA Video Card?

Posted on 2024-04-07, 07:46

by

by dJOS

in Marvin \ Video

in Marvin \ Video

Cheers, I’ll check my footprints against yours.

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Re: Video RAM chips for a UMC TK-85C408VGA ISA Video Card?

Posted on 2024-04-06, 22:24

by

by dJOS

in Marvin \ Video

in Marvin \ Video

Cheers, some pics would be helpful.

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Re: Video RAM chips for a UMC TK-85C408VGA ISA Video Card?

Posted on 2024-01-29, 04:05

by

by dJOS

in Marvin \ Video

in Marvin \ Video

I’d be surprised if it was compatible, VLB is very different from plain ISA.

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Re: Video RAM chips for a UMC TK-85C408VGA ISA Video Card?

Posted on 2024-01-28, 22:12

by

by dJOS

in Marvin \ Video

in Marvin \ Video

Mine has the footprints for dip sockets too, but I suspect I would need to fill in the bank with the SMD footprints first or the card won’t work.

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Re: Video RAM chips for a UMC TK-85C408VGA ISA Video Card?

Posted on 2024-01-21, 10:03

by

by dJOS

in Marvin \ Video

in Marvin \ Video

Well that is interesting, I put the card into my Pentium II and nothing. So I removed the jumper at JP5 and it fired right up!

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Re: Video RAM chips for a UMC TK-85C408VGA ISA Video Card?

Posted on 2024-01-21, 08:49

by

by dJOS

in Marvin \ Video

in Marvin \ Video

Hmm, I wonder if I need to change a jumper on my board to get it working with less ram. I guess it’s possible mine didn’t work to start with and that is why ram was pinched from it.

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Re: Video RAM chips for a UMC TK-85C408VGA ISA Video Card?

Posted on 2024-01-21, 08:01

by

by dJOS

in Marvin \ Video

in Marvin \ Video

DerBaum wrote on 2024-01-21, 07:23: i found another card that uses 26pin memory ics. http://www.amoretro.de/2012/09/trident-tvga90 … -768kb-isa.html The part numbers exist but seem to be rare too. Darn it, I can’t find much about that one either! 😩

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Re: Video RAM chips for a UMC TK-85C408VGA ISA Video Card?

Posted on 2024-01-21, 07:39

by

by dJOS

in Marvin \ Video

in Marvin \ Video

i found another card that uses 26pin memory ics. http://www.amoretro.de/2012/09/trident-tvga9000b-grafikkarte-768kb-isa.html The part numbers exist but seem to be rare too. Nice, I found a couple of similar video cards too, but the ram part numbers and brand were lost to history. I’ll do some …

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Video RAM chips for a UMC TK-85C408VGA ISA Video Card?

Posted on 2024-01-21, 04:40

by

by dJOS

in Marvin \ Video

in Marvin \ Video

Hi All, a very long time ago I came across a UMC TK-85C408VGA-2J-D08F ISA VGA card - someone had pinched 2 of the ram chips from it. Anyway, I actually need an ISA VGA card to test a 386DX-40 MB that I've just finished restoring and without the full complement of chips, it's useless. Anyhoo, the …

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Re: *START HERE* SoftMPU 1.91 - Software Intelligent MPU-401 Emulator

Posted on 2023-11-23, 02:20

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by dJOS

in SoftMPU

in SoftMPU

Pierre32 wrote on 2023-11-23, 02:03: Well except the PC MIDI card doesn't need SoftMPU. Buy it 😁 I don’t recall needing SoftMPU on the Yamaha cards as they are MPU401 Compliant. But to be honest it’s been a while since I used mine for MIDI. https://youtu.be/2_L_1tvH1Ew

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Re: *START HERE* SoftMPU 1.91 - Software Intelligent MPU-401 Emulator

Posted on 2023-11-23, 02:00

by

by dJOS

in SoftMPU

in SoftMPU

danyetman wrote on 2023-11-22, 23:50: ...and of course, NOW I get a notification that the PCMIDI is in stock. Oh irony. 🤣, I have one and there’s no noticeable difference between the midi capabilities of it and the Yamaha card.

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Re: *START HERE* SoftMPU 1.91 - Software Intelligent MPU-401 Emulator

Posted on 2023-11-22, 09:10

by

by dJOS

in SoftMPU

in SoftMPU

Yeah it’s not my first choice either. The main reason for using it in my case is it gives you Adlib sound and CMS / GameBlaster on an XT class machine. The Tandy sound is great, but Adlib has better support.

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Re: *START HERE* SoftMPU 1.91 - Software Intelligent MPU-401 Emulator

Posted on 2023-11-22, 06:58

by

by dJOS

in SoftMPU

in SoftMPU

Nice, I’m currently adapting the picoGUS design for the Tandy 1000 EX/HX computers and adding in multi-IO functionality while I’m at it.

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