Re: MDR-401 cards - are they really existed or are they an elaborate hoax?

Posted on 2023-10-23, 20:38

by

by DerBaum

in Marvin \ Sound

in Marvin \ Sound

yeah, but the demoseq is more or less irrelevant now... maybe its not important for reverse engineering the card... but it is probably important to reverse engineer its origin... --- As the cards that are now available also come from italy... --- We now have a direct connection between the italian …

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Re: CD Drive strange behavior

Posted on 2023-10-23, 20:33

by

by DerBaum

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Cheepest one is 8 euros + 19.90 shipping in Germany. Is this maybe you? 🙂 i dont sell the stuff i dont need... i only trade it here on vogons for other stuff i dont need ;) I don't see the option to buy from the link you shared, only to message the seller It is a private selling site with no "buy …

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Re: MDR-401 cards - are they really existed or are they an elaborate hoax?

Posted on 2023-10-23, 20:27

by

by DerBaum

in Marvin \ Sound

in Marvin \ Sound

After we now know that these are reproductions, here is a Pro Tip to the maker of the boards : Tell JLCPCBWAY to put the internal fabrication number below a chip on the next batch... ;) mmmh, that demoseq program has italian text in it. as if it was compiled by a compiler in the italian language. …

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Re: CD Drive strange behavior

Posted on 2023-10-23, 20:18

by

by DerBaum

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Austria Im in germany... we are just like 1000 kilometers apart... Recently i shipped a cdrom drive to italy for 12 euros and a soundcard to sweden for 14 euros. I cant imagine you are not abled to find a cheap liteon drive in the eu... https://www.kleinanzeigen.de/s-anzeige/cd-rom-reader-lite-on- …

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Re: CD Drive strange behavior

Posted on 2023-10-23, 20:13

by

by DerBaum

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Using google for above models, I either end up one some store where the item is out of stock or on ebay with huge price they are like 10- 12 euros in my country... where do you live? Austria Im in germany... we are just like 1000 kilometers apart... Recently i shipped a cdrom drive to italy for 12 …

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Re: CD Drive strange behavior

Posted on 2023-10-23, 20:04

by

by DerBaum

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Yes, but I want to return original drive as this is compaq machine. To get same drive from ebay, is more like 30+ dollars i am sure you can get another liteon cd(r) drive and put on the shell and faceplate from your branded one. LTR-12101B , LTR-24102B, LTR-32123S, LTR-40125S look quite similar to …

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Re: CD Drive strange behavior

Posted on 2023-10-23, 19:55

by

by DerBaum

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

used CD drives are $5-10 and this one isnt special in any way, just get another one Yes, but I want to return original drive as this is compaq machine. To get same drive from ebay, is more like 30+ dollars i am sure you can get another liteon cd(r) drive and put on the shell and faceplate from your …

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Re: What retro activity did you get up to today?

Posted on 2023-10-23, 18:05

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by DerBaum

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

The lack of individual addressable RGB LEDs and orange car wrapping film in modded early 2000s industrial PCs is not accaptable! 2023-10-23 19.09.01.jpg I cant wait to see how it will turn out. I try to just use the leds in placec where you cant see them directly (below the backplane, behind fans …

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Re: Guillemot Maxi Studio Isis DOS support

Posted on 2023-10-23, 15:44

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by DerBaum

in Marvin \ Sound

in Marvin \ Sound

When i look at the history of Guillemot it seems the soundcard business was just a short lived thing and the main focus was on graphics cards. Right around the time our Soundcards came out Guillemot bought Hercules and pushed graphics cards even more. It seems like they did not provide well designed …

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Re: Server ID from way back in the 486-days

Posted on 2023-10-22, 10:07

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by DerBaum

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I have computers and parts that i have in front of me and i am still not abled to identify them... even with the whole internet on hand. Do you have them described & photographed somewhere? Not me. The sellers i got them from did. Bottom left is an unknown Single board computer i got from a fellow …

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Re: Server ID from way back in the 486-days

Posted on 2023-10-22, 09:27

by

by DerBaum

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Many industrial computers have super weird placement of parts and large power supplies to be on the safe side. The problem with these is that they sometimes were made locally by local companies and are not very well documented. I have computers and parts that i have in front of me and i am still not …

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Re: MDR-401 cards - are they really existed or are they an elaborate hoax?

Posted on 2023-10-21, 17:40

by

by DerBaum

in Marvin \ Sound

in Marvin \ Sound

To be fair this isnt a new thing to fake products. And it doesnt shock me. OK, but do you have any example for such a thing in the current retro-computer community (let's say in the last 5 to 10 years)? where "clones" are either released as open-source hardware (e.g. HardMPU) and you can DIY or if …

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Re: MDR-401 cards - are they really existed or are they an elaborate hoax?

Posted on 2023-10-21, 17:25

by

by DerBaum

in Marvin \ Sound

in Marvin \ Sound

at least this offer doesnt seem too scammy. it doesn't really matter - I saw one for 250 EUR from Germany and the AmiBay classified from which I posted a picture in my initial post was I believe for 200 USD selling from the USA. However, that really doesn't matter at least to me - I mean the money …

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Re: MDR-401 cards - are they really existed or are they an elaborate hoax?

Posted on 2023-10-21, 17:15

by

by DerBaum

in Marvin \ Sound

in Marvin \ Sound

i found a seller wich offers more then one. the offer included pictures of the backside. its hand soldered and a 3d printed slot cover. the description doesnt mention it as authentic 90s just as new. its 80 euros plus 15 shipping to my country. at least this offer doesnt seem too scammy.

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Re: CD Drive strange behavior

Posted on 2023-10-21, 13:07

by

by DerBaum

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Put the cover on so that the spindle has the top part, it's probably detecting that the disc is slipping. Or it could be a light activated sensor that shouldn't normally see daylight. yes its the magnetic top spindle thats missing for proper rotation. The light doesnt matter. I recently cleaned …

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Re: Creative PnP EEPROM collection

Posted on 2023-10-20, 23:33

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by DerBaum

in Marvin \ Sound

in Marvin \ Sound

Maybe these dumps i did are of interest for someone: The Zip contains: CT2941 (variation CT2940 / IDE unpopulated) (different from the included CT2940 dump.) CT2945 (variation CT2940 / IDE populated) (different from the included CT2940 dump.) CT2959 (CT2950 variant) CT3600 CT4171 (CT4170 variant) …

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Re: What was the first motherboard with built in USB Support?

Posted on 2023-10-20, 15:39

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by DerBaum

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Repo Man11 wrote on 2023-10-20, 15:16: ...USB port was actually used as the Windows... I always remember this clip : https://www.youtube.com/watch?v=yeUyxjLhAxU

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Re: GPU Fan connector?

Posted on 2023-10-20, 11:17

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by DerBaum

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I know this type as "JST" but i dont know if its exactly that.

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Re: "Identify motherboard" thread (if you don't know to identify motherboard, post here)

Posted on 2023-10-19, 09:41

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by DerBaum

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Could somebody please help me identify this ISA Card? (I hope the images of it are being displayed properly, me only attaching them to this message). I see a maxim max232 on there. Maybe you can find where the serial interface on the connector is and try some serial interfacing. Maybe it answers …

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Re: The Soundblaster DSP project

Posted on 2023-10-18, 19:20

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by DerBaum

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

how do i read the older versions? i always wanted to confirm that aztech cards use creative dsp code. i have a ton of aztech cards with 3.xx and 4.xx reported dsp versions (maybe 2.xx but i cant remeber).

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