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Re: "Soft CPU" settings for Pentium (Socket 7 era)... in MR BIOS?

Posted on 2024-01-29, 18:42

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

dionb wrote on 2024-01-27, 09:21: Yep. Clock gen circuitry (PLLs on boards like this) isn't integrated into the chipset, so the specific PLL needs firmware support for what you want. There are tools for later boards, but not aware of any DOS tools for this era. Thank you for the information.

Re: "Soft CPU" settings for Pentium (Socket 7 era)... in MR BIOS?

Posted on 2024-01-29, 18:42

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I don't know where did you got this MR BIOS archive from, but if your motherboard doesn't have an options to manually set (by combinations of jumpers) voltage, bus frequency and multiplier for the CPU, it's obviously not a good idea to use some "chipset-universal" 3-rd party BIOS that also doesn't …

Re: "Soft CPU" settings for Pentium (Socket 7 era)... in MR BIOS?

Posted on 2024-01-26, 23:50

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Are you using a generic MR BIOS for the chipset application? Or is it for that exact model motherboard? The board is a PM-9500 AMPTRON (but is known as a couple of other models)... which uses a TX chipset, and according to the MR BIOS archive here on Vogons, uses MR BIOS 3.46. If you flash that …

"Soft CPU" settings for Pentium (Socket 7 era)... in MR BIOS?

Posted on 2024-01-26, 21:22

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

OK... you know how some Pentium (Socket 7 era) motherboards supported soft CPU settings to control FSB, multiplier and voltage? Those "Soft CPU" seemingly don't make their way into the versions of MR BIOS for those motherboards. Is there a stand alone utility for DOS that bridges the gap? Thank you!

Re: mTCP NetDrive: network attached storage for DOS 2.0 or better

Posted on 2024-01-18, 14:24

in Milliways

in Milliways

Is there any possibility of adding support for multiple remote images being mounted at the same time? What about FAT32 support? Thank you!

Pentium Overdrive (PODP5V83) in non-ZIF Socket 1?

Posted on 2023-07-09, 17:25

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Does an adapter exist to allow you to use a Pentium Overdrive (like the PODP5V83) in a Socket 1 non-ZIF motherboard? Thank you!

Re: Vibra 16 MIDI pinouts

Posted on 2021-03-17, 12:53

in Marvin \ Sound

in Marvin \ Sound

I found a card on eBay. I'll poke around with the multimeter and share my results. Sorry for the necro-posting! Tyrantulas, did you ever poke around with the card? I got the card in, and indeed MIDI-IN / MIDI-OUT / 5V / GND can be toned directly off the Vibra chip with no discrete components …

Re: Vibra 16 MIDI pinouts

Posted on 2020-10-09, 16:24

in Marvin \ Sound

in Marvin \ Sound

My Quadra died back in February. I had to gut the PSU and build an adapter which allowed me to use a standard ATX PSU (https://68kmla.org/forums/index.php?app=forums&module=forums&controller=topic&id=58841&do=findComment&comment=652901). It's still in the testing phase so I'd like to make sure it's …

Re: PC compatibility cards

Posted on 2020-10-06, 20:52

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Can the cpu be changed like on orange cards? Sorry for the necro quote—also, hi. I sort of discovered this forum by way of the 68kMLA forum. Has anyone ever attempted to socket and change the CPU on these cards? As far as I can tell, based on Oliver Schubert's site, the BIOS is all contained in the …

Re: Vibra 16 MIDI pinouts

Posted on 2020-10-05, 04:12

in Marvin \ Sound

in Marvin \ Sound

So the solution is to not rely on the game port, and instead pull signals directly from the VIBRA16 chip itself?

Re: Vibra 16 MIDI pinouts

Posted on 2020-10-04, 16:18

in Marvin \ Sound

in Marvin \ Sound

So what ended up shaking out from this? I’d love to connect my MT32 to my Apple DOS Compatible Card!

Re: IBM Thinkpad 390 & LucasArts Games (SCUMM)

Posted on 2020-04-15, 23:08

in Marvin \ Sound

in Marvin \ Sound

dionb wrote on 2020-04-15, 06:49: 330 is pretty standard, if you're doing that manually, it's not what I though it was. Looking at those settings, DMA 0 is somewhat excentric. Would it be an option to try DMA 1? Same issues using DMA 0,1, or 3

Re: IBM Thinkpad 390 & LucasArts Games (SCUMM)

Posted on 2020-04-14, 21:29

in Marvin \ Sound

in Marvin \ Sound

One thing I recall with SCUMM is that autodetect can be flaky. Maybe you could try to manually setting MIDI at 0x330. Might just help. I have MIDI set to port 330 in BIOS, and in SoftMPU. If I go into a game like Duke3D's setup, I can point it at 330, and I see activity on the MT-32's display. So …

IBM Thinkpad 390 & LucasArts Games (SCUMM)

Posted on 2020-04-14, 16:30

in Marvin \ Sound

in Marvin \ Sound

I have an IBM Thinkpad 390 that I'm working to repurpose as a DOS gaming laptop. The biggest downside of this machine is the NeoMagic NMA2 (NM2200) which from my checking does not have "REAL" DOS drivers... but it has advertised SB Pro/Adlib compatibility, so it's not terrible terrible. Now that …

Re: Labsound 770 "3D-sound expansion interface?"

Posted on 2017-10-13, 21:20

in Marvin \ Sound

in Marvin \ Sound

Anyone?

Re: Music Quest MPU clone cards, anyone interested in them?

Posted on 2017-10-13, 21:19

in Marvin \ Sound

in Marvin \ Sound

keropi wrote: This is just a prototype/test card that stays and works indoors 🤣 🤣 🤣 I read that one Facebook and was like "Does he not realize who this is?" 🤣

Labsound 770 "3D-sound expansion interface?"

Posted on 2017-10-11, 19:32

in Marvin \ Sound

in Marvin \ Sound

I recently came across a generic looking ESS1688F based ISA sound card that I wanted to start doing some experimentation with. I was able to do some identification with FCC data, and learned it is a "Labsound 770." Some quick Googling netted me the jumper settings for the card... and a new question. …

Re: Music Quest MPU clone cards, anyone interested in them?

Posted on 2017-10-06, 18:09

in Marvin \ Sound

in Marvin \ Sound

So excited... can't wait!

Re: Music Quest MPU clone cards, anyone interested in them?

Posted on 2017-09-20, 21:43

in Marvin \ Sound

in Marvin \ Sound

Here's the waiting list: https://docs.google.com/spreadsheets/d/1q6WDw … BYB4/edit#gid=0

Re: Music Quest MPU clone cards, anyone interested in them?

Posted on 2017-09-07, 21:58

in Marvin \ Sound

in Marvin \ Sound

Two week update?

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