Isa-486sv2 3.10 won't post

Posted on 2022-11-22, 22:21

by

by CachoAlpuy

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Hi, I have an isa-486sv2 Asus motherboard which won't post, I repaired a broken trace due to battery leakage and checked the rest of the traces. If I power it with the kb controller chip the post card doesn't show any code, and if I remove the keyboard controller I get the codes like in this video, …

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Ps2 mouse to AT connector with splitter

Posted on 2022-11-20, 20:04

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by CachoAlpuy

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Can an adapter like the one in the photo be used to connect a keyboard and a mouse to a motherboard that only has at connector like some socket 7 and 486?

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Re: UNISOUND - Universal ISA PnP Sound Card Driver for DOS v0.78b

Posted on 2022-11-17, 11:24

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by CachoAlpuy

in Marvin \ Sound

in Marvin \ Sound

AZT2316 is a non-PnP chipset, it's not within UNISOUND's scope. There are already several non-PnP but software configurable cards supported, and people often prefer UNISOUND to the "proprietary" initializers. Yeah, i prefer to have only one driver for almost all the cards because im all the time …

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Re: UNISOUND - Universal ISA PnP Sound Card Driver for DOS v0.78b

Posted on 2022-11-15, 13:42

by

by CachoAlpuy

in Marvin \ Sound

in Marvin \ Sound

Is it possible to add support for the cryspal cs4231? Its this card: https://commons.wikimedia.org/wiki/File:ISA-legacy-Soundkarte.jpg Isn't CS4231 only a codec? It does not handle the PnP functions on this card AFAIK, for that you need support for the Aztech chip actually. Then it would be to add …

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Re: UNISOUND - Universal ISA PnP Sound Card Driver for DOS v0.78b

Posted on 2022-11-14, 14:06

by

by CachoAlpuy

in Marvin \ Sound

in Marvin \ Sound

Is it possible to add support for the cryspal cs4231? Its this card: https://commons.wikimedia.org/wiki/File:ISA-l … -Soundkarte.jpg

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Re: Help needed, 486 motherboard, L2 cache detected but not working

Posted on 2022-11-11, 11:35

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by CachoAlpuy

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

It turns out that the 32Kx8 wasnt working as the tag ram, i now put a 16Kx8 in the tag slot, it was swapped with one of the cache rams. Also the tag chip was 12ns instead of 15ns. It works now.

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Help needed, 486 motherboard, L2 cache detected but not working

Posted on 2022-11-10, 12:23

by

by CachoAlpuy

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Hi, i have the motherboard DTK PKM-0033S with SIS 496/467 chipset and currently with 128kB of cache and Intel 486 DX2 66 CPU. The board detects the cache as it is shown in the initial screen before loading DOS but it doesnt seem to work according to some tests in SpeedSys and CacheChk. I double …

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Re: Socket 5 & 7 Motherboard VGA Benchmark comparison

Posted on 2022-11-03, 13:07

by

by CachoAlpuy

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I own a matrox g450 PCI, is it equivalent for the benchmark?

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Re: T-04YBSC-A, new YMF71x based sound card + SETYMF utility

Posted on 2022-05-31, 12:52

by

by CachoAlpuy

in Marvin \ Sound

in Marvin \ Sound

Laptops can utilize the EEPROMless mode to save on cost, as BIOS can set up things prior, bypassing PnP process etc. When /FORCEPNP is used, SETYMF ignores that nothing on PnP responded (indicating no EEPROM to read conf out of) and the program then blindly assumes that card responds to a magic …

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Re: T-04YBSC-A, new YMF71x based sound card + SETYMF utility

Posted on 2022-05-27, 14:26

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by CachoAlpuy

in Marvin \ Sound

in Marvin \ Sound

SETYMF sets the control register to what it thinks it should be, overriding whatever it was set to before. What it does not check is if the port appears used or not, at least on first run where new configuration is created. I am unsure if I can do anything about it though, SETYMF is not really …

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Re: T-04YBSC-A, new YMF71x based sound card + SETYMF utility

Posted on 2022-05-27, 13:54

by

by CachoAlpuy

in Marvin \ Sound

in Marvin \ Sound

Hi , i have a toshiba satellite 4015CDT laptop which has a opl3sa3 chip. When i execute setymf /forcepnp i get the error: "YMF control register is inaccessible... Possible IO conflict". The control register in my chip is in port 538H and cannot be changed, maybe setymf is looking for it in 370h and …

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Pentium 3 Netvista 6648 with 110W PSU

Posted on 2022-05-03, 14:29

by

by CachoAlpuy

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Hi, I have a sff 6648 Netvista with a 110W PSU, i would like to put an AGP graphics card and i wonder if the PSU can handle it. Due to the form factor of the case, i cannot put another PSU. I was checking and the pentium 933 consumes 27.3W and for example an ATI 9250 consumes 27W which summed is …

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Re: ASUS p3c-d, looking for high res pictures

Posted on 2022-01-25, 16:29

by

by CachoAlpuy

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Stripped the entire HP circuitry. I already had EEPROM socket in place from previous mods. Yes, using the ASUS BIOS. Yes, removed the resistor under the dip switch packages. Can you point on the picture the other resistors you mentioned ? These are the difference i spotted, some are missing …

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Re: ASUS p3c-d, looking for high res pictures

Posted on 2022-01-24, 12:52

by

by CachoAlpuy

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Altered one of the two HP-Kayak-crippled P3C-D boards here and it does not start now. Kind of expected that, since the last time i tried few years ago on another board resulted in the same issue. There are 3 areas that i am still unsure about. @Dionb, can you clarify the values of these elements …

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Re: Idea CMS emulation via TSR

Posted on 2022-01-22, 02:28

by

by CachoAlpuy

in Marvin \ Sound

in Marvin \ Sound

Is there already a project to do this?

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Asus P3c-d no post, weird beep sound

Posted on 2022-01-22, 01:44

by

by CachoAlpuy

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I have the Asus P3c-d motherboard from an hp kayak, when I power it it shows the behavior of this video :https://youtu.be/8N40cGJSCI8 Does anyone know what could be the problem?

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Idea CMS emulation via TSR

Posted on 2022-01-21, 20:59

by

by CachoAlpuy

in Marvin \ Sound

in Marvin \ Sound

I would like to know with the people more experienced with these topics if the following could be possible. As the CMS uses square waves and noise to generate sound, could a TSR be implemented to capture the commands being sent to the emulated CMS and be translated to OPL3 commands and then sent to …

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Re: ASUS p3c-d, looking for high res pictures

Posted on 2022-01-21, 17:00

by

by CachoAlpuy

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

dionb wrote on 2022-01-21, 15:28: Here's the best I can do without the microscope: IMG_20220121_162137.jpg Hope it's good enough - I can read most of the SMD stuff ... It looks perfect, i will start spotting the differences, maybe i ask you some values later. Thank you!

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Re: ASUS p3c-d, looking for high res pictures

Posted on 2022-01-20, 15:34

by

by CachoAlpuy

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I might be able to, I think I have the retail version. That said, wasn't the HP version green? To get you pics good enough to see resistor values I need to use a microscope (no decent camera with macro function), which gives a much smaller field of view than this pic. Could you perhaps indicate …

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Re: Graphic issues in Dell XPi Laptop DOS

Posted on 2022-01-20, 13:31

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by CachoAlpuy

in Marvin \ Video

in Marvin \ Video

Im bumping this post to see if someone came across with this issue and found a solution

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