Re: Looking for information about ISA Media Magic sound card

Posted on Yesterday, 14:02

by

by Datadrainer

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

As for confirmation that it's an OPTi 928 / MAD16... try and run the initializer software for MAD16 and see if it registers. Thanks! I'll try to see it this weekend. The two wavetable headers (or something that looks a lot like it) are very unusual, I'm willing to wager that J1 is related to the …

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Looking for information about ISA Media Magic sound card

Posted on Yesterday, 11:24

by

by Datadrainer

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Reorganizing part of my stock I came across this card that I had completely forgotten about. MM_TOP.jpg MM_BOT.jpg Apparently the card was manufactured in March 1994. It is using a Crystal Semiconductor CS4248 audio codec, probably a OPTi 82C928 (aka MAD16) controller and a true Yamaha YMF262 (aka …

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Re: ASUS P4T-E and many issues

Posted on 2024-04-19, 17:36

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by Datadrainer

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

P4T-E uses RAMBUS RDRAM. All RAM slot should be populated, with memory modules or CRIMM. Photos could be useful.

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Re: Rare card or just forgotten?

Posted on 2024-04-05, 16:51

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by Datadrainer

in Marvin \ Video

in Marvin \ Video

Sanyo's previous machine was a DOS compatible with it's own custom RGB graphics, so it's possible we are not dealing with CGA or EGA. Also it has been known for random RCA sockets, not distinctively labelled as composite out or video out, to actually be light pen trigger inputs... rare but not …

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Re: Are the Creative GigaWorks T40 Series II a good choice for a retro rig?

Posted on 2024-04-05, 12:09

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by Datadrainer

in Marvin \ Sound

in Marvin \ Sound

Just one addition I didn't think of it before. Will you play on CRT or LCD monitor? Because for a CRT I would recommend shielded speakers as the T20/T40 are not shielded so can be a problem if you put them near your screen. I think you may be interested to know that before buying. It is rare today …

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Re: Are the Creative GigaWorks T40 Series II a good choice for a retro rig?

Posted on 2024-04-02, 17:44

by

by Datadrainer

in Marvin \ Sound

in Marvin \ Sound

megatron-uk wrote on 2024-04-02, 17:26: I don't like the blue LED ring around the volume/power control knob. The S1 was better in that regard with the small single LED that could be blanked out. Indeed, the blue light around the volume knob is quite bright... But for PC gaming we get used to it, …

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Re: Are the Creative GigaWorks T40 Series II a good choice for a retro rig?

Posted on 2024-04-02, 17:27

by

by Datadrainer

in Marvin \ Sound

in Marvin \ Sound

They are great with very clear sound, but they tend to amplify the noise of noisy sound cards. I have a T20 and a T40 and I never saw them going in standby mode with a PC ON. I think they uses the amplitude level of the line to detect audio activity and with volume set high enough on the sound card …

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Re: PSU for old HP Pavilion Desktop

Posted on 2024-03-19, 16:24

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by Datadrainer

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

For both HP and Dell: if the motherboard is new enough to have PCI-E, it's pretty much guaranteed the ATX connector is standard pinout. At least I haven't see one that isn't so far, and I've worked on quite a few OEM machines back in the mid-late 2000's. That being said, the motherboard is new …

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Re: PSU for old HP Pavilion Desktop

Posted on 2024-03-19, 12:02

by

by Datadrainer

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

What I have found is your PSU is a HP 585007-001 (LiteOn PS-5301-08HF) or HP 585008-001 (LiteOn PS-5301-08HA) but was not able to find the said sensing lines... I don't how much reliable The Retro Web is, but have a look here https://theretroweb.com/motherboards/s/msi-ms-7613-ver-1-0 . It is written …

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Re: PSU for old HP Pavilion Desktop

Posted on 2024-03-18, 20:54

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by Datadrainer

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Are you sure the computer is using an ATX compliant PSU? HP uses ATX connector with a custom wiring not compatible with ATX on some machines, you can find ATX pinout on the Internet and compare the color of the wires to your PC connector. If that is matching, you can replace the PSU. Nothing can fry …

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Re: PicoMEM : Pi Pico on ISA, with full Memory and I/O bus access

Posted on 2024-03-06, 20:51

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by Datadrainer

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I understood that the bus was locked during SD card reading. My bad. It is good to know both access can be done independently. With such a project it could be possible to emulate all sort of expansion cards including uncommon ones. And having access to a DMA channel is always a good thing as …

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Re: ASUS I-A16C sound card and Wavetable addon

Posted on 2024-03-06, 12:56

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by Datadrainer

in Marvin \ Sound

in Marvin \ Sound

The WaveBlaster header seems to have some dirt between a few pins. Hope it's not conductive because most of the pair pins are ground if I remember well. You can also check the tantalum caps near the header and the -12V and +12V pins.

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Re: PicoMEM : Pi Pico on ISA, with full Memory and I/O bus access

Posted on 2024-03-05, 12:27

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by Datadrainer

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Thank you for all the clarifications @FreddyV. I understand better the limitations of the RP2040 here. I don't understand what you mean about the DMA, The Pico can access the SD and still response to all the ISA bus request. Then, the Pico read SD sectors while the PC Copy the previous sector to the …

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Re: PicoMEM : Pi Pico on ISA, with full Memory and I/O bus access

Posted on 2024-03-04, 13:52

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by Datadrainer

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Thank you for your work @FreddyV. I really mean it. Project like yours are very important for the community even if it take time for the said community to understand it. There are many interesting threads posted frequently here, and with little time, I read them when I can. And what a surprise …

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Re: HP Vectra VL/5 Motherboard

Posted on 2024-03-03, 13:19

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by Datadrainer

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Digging again this message for completeness in case someone need any information about this card. It was used in the revised Vectra VL/5 and XA/5 Series 5 very similar with the previous Vectra VL/5 and XA/5 Series 4 line of products. The motherboard was used in the desktop and minitower versions. …

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Re: Gotek like Optical Driver Emulator - Is it possible?

Posted on 2024-02-14, 10:37

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by Datadrainer

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Ah, well, while a full-fledged IDE emulator would be nice, I think a more focused device that just does CD emulation would be far better. For example, if it had the same controls as the floppy Gotek, you could have dedicated buttons or on-screen controls to eject the image or even select a …

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Re: Gotek like Optical Driver Emulator - Is it possible?

Posted on 2024-02-13, 11:30

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by Datadrainer

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

ZuluIDE shows it is possible to get a working IDE device emulator built on a RP2040. they use FPGA, at that point you can use Arduino there instead of rp2040 and it would make little difference :) It seems to be a great product like ZuluSCSI not a product, announcement A product in the making if …

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Re: Gotek like Optical Driver Emulator - Is it possible?

Posted on 2024-02-12, 20:52

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by Datadrainer

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

ZuluIDE shows it is possible to get a working IDE device emulator built on a RP2040. But their was no real doubt about that. It seems to be a great product like ZuluSCSI is, but like ZuluSCISI does not have a CD-DA audio output. And the software supports only simple image formats, nothing like …

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Re: Gotek like Optical Driver Emulator - Is it possible?

Posted on 2024-02-09, 12:39

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by Datadrainer

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Thank you for the photo @t3hbeowulf. I'm still not convinced in such a product. As 3DO.dev is not able to show pictures of the actual product, does not give a documentation. I'm still waiting for the demonstration video, but this is apparently no longer on the agenda. There was a very promising 2017 …

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Re: [Commodore PC40-III] Won't start - Help requested

Posted on 2024-02-09, 11:49

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by Datadrainer

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Apologies in advance digging up an old thread, but I happen to have a PC40-III with the same issue. Did the OP manage to get theirs working I wonder. Mine is the pre Dallas version so have repaired a lot of battery damage. WAS alive, then just randomly died after I left it on while I was trying to …

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