Re: JUKO NEST XT board questions (manual attached)

Posted on Today, 06:39

by

by Anonymous Coward

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Were the ST and the NEST produced side by side? And if so, does BIOS version on the ST correlate to the version number on the NEST? If so, and there were late BIOS releases for the ST but not for the NEST, it should be possible to split the ST ROM into even and odd banks for use on the NEST.

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Re: How about a MR-BIOS ROM file repository?

Posted on Today, 06:34

by

by Anonymous Coward

in Marvin \ Software

in Marvin \ Software

I have a DTK motherboard that has a jumper that lets you handle the way the CPU oscillator is divided. Normally for 486s OSC should be twice the rated bus frequency of the CPU, but for some reason for the DX-50, this board lets you use a 50MHz oscillator if you change the jumper. Maybe your board …

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Re: 486 Multimedia dream build ( 1993/94 ).

Posted on 2021-01-21, 10:48

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by Anonymous Coward

in Marvin \ System Specs

in Marvin \ System Specs

I haven't ran linux in a really long time...maybe 15 years or so. But what I remember was for a period, Gnome was a lot slower than KDE. That might not necessarily be the case now, and it probably also depends on how you have things configured. If you're just doing some generic install on a major …

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Re: 8-Bit Guy video's are becoming a chore!

Posted on 2021-01-21, 04:52

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by Anonymous Coward

in Milliways

in Milliways

Less enthusiasm is easy to explain. 20 or 30 years ago, a lot of things were poorly documented, especially online....so it was exciting to uncover things and do stuff that had never been tried before. Just about every possible angle has now been exploited, and now every joe schmoe can easily find …

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Re: CCCyrix logo (clipart)

Posted on 2021-01-20, 23:31

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by Anonymous Coward

in Milliways

in Milliways

Very nice. Thanks. I'll use that to create a more accurate rendition. That Fasmath box art is pretty classy. I like how in the ad it has warp engine trails like the 80's era star trek movies.

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Re: Dell Dimension 466i Restoration/Build

Posted on 2021-01-17, 00:52

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by Anonymous Coward

in Marvin \ System Specs

in Marvin \ System Specs

I really liked the look of the Dell computers from the early 90s just before they started using the new logo.

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Re: FPU daughterboard

Posted on 2021-01-14, 23:59

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by Anonymous Coward

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

That isn't an FPU board, though it is pretty interesting. It's a 10MHz CPU upgrade card with dedicated memory (almost an SBC), though it looks like it might be missing the cable that goes to the CPU socket. It's also unclear if it uses an 8086-1 or an 8088-1. (or maybe even an 80186, the picture is …

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Re: How about a MR-BIOS ROM file repository?

Posted on 2021-01-12, 04:17

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by Anonymous Coward

in Marvin \ Software

in Marvin \ Software

Is that their EISA Pentium chipset?

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Re: Value in IBM AT vs a 386 for retro gaming?

Posted on 2021-01-11, 11:33

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by Anonymous Coward

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I'd be okay with a clone 286 too. But, it has to be in a full sized desktop case. There were some pretty good clones. Everex was one of the best.

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Re: Mach64 PCI versions - ROM BIOS

Posted on 2021-01-10, 15:46

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by Anonymous Coward

in Marvin \ Video

in Marvin \ Video

There should be a PC version of the GX that uses the IBM RAMDAC. I think it's called the Graphics Pro Turbo 1600.

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Re: Looking for BIOS image for ASUS ISA 386C

Posted on 2021-01-10, 15:34

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by Anonymous Coward

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I experienced a similar problem with Mr. BIOS on my my SiS Rabbit board as well. It's a "CTI" brand that uses a very early revision rabbit chipset. Although MR BIOS claims to be compatible with the old revisions, it doesn't seem to work.

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Re: 8-Bit Guy video's are becoming a chore!

Posted on 2021-01-08, 14:31

by

by Anonymous Coward

in Milliways

in Milliways

I have seen some of the 8-bit guy videos, but generally only watch them if the topic looks interesting. He's a pretty awkward guy. The best way I can describe it is like watching a balder, nerdier version of myself. You've got to give him credit for having the balls to put his face on youtube. I'd …

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Re: Overclocking the AT bus on a 386/40 motherboard

Posted on 2021-01-07, 01:02

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by Anonymous Coward

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

The Cyrix DRx2 chips cannot be set to single clock mode. They default at 2X and there is nothing to change that. What you need is a TI 486SXL2-50. That one starts up in single clock mode and can be switched to 2X with software.

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Re: Overclocking the AT bus on a 386/40 motherboard

Posted on 2021-01-05, 12:20

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by Anonymous Coward

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

You should try your tests again with a DLC-40. If the bottleneck is the CPU, then you might get better gains from overclocking ISA with the DLC.

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Re: When did you purchase your first 386 / 486 Computer? Availability vs the early 90's affordability norm.

Posted on 2021-01-04, 15:44

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by Anonymous Coward

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Unfortunately, around the time I had saved up enough money to purchase all the components, a factory exploded somewhere in Asia, causing the prices of SIMMs to skyrocket overnight, throwing a bit of a wrench in my budget. Yeah, tell me about it! The memory prices were sky high until sometime in …

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Re: IBM(CyriX) 6x86 quary.

Posted on 2021-01-01, 00:24

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by Anonymous Coward

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Cyrix was fabless. During the early days of 6x86, all of their chips were produced by IBM and ST *for* Cyrix, not the other way around. As part of the deal, IBM and ST were allowed to sell the Cyrix chips under their own name. What you have is a very early example of an IBM branded 6x86 that pre- …

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Re: When did you purchase your first 386 / 486 Computer? Availability vs the early 90's affordability norm.

Posted on 2020-12-31, 16:01

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by Anonymous Coward

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

386DX was largely skipped over by non-professionals until after 486 prices dropped in 1992. That's why most of the 386DX motherboards you see in the scrap bin are the tiny ones with 486 class chipsets. My family purchased their first x86 PC in late 1992, a 486DX-33...it was a pretty powerful …

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Re: Spring Circle SF586 Socket 5 VLB motherboard

Posted on 2020-12-31, 06:18

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by Anonymous Coward

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

How can you be certain VLB runs at full CPU bus speed? I seriously doubt whoever designed the board would have been crazy enough to do something like that.

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Re: Rarest CPUs?

Posted on 2020-12-30, 12:35

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by Anonymous Coward

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

It's still cool though, because it's an unlocked 166MMX.

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Re: Ali M1209 Chipset and 4MB Simms

Posted on 2020-12-30, 01:33

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by Anonymous Coward

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

32MB cards for ISA definitely exist. I have one called Orchid Ramquest 8/16. It can be used as conventional backfill, LIM 4.0 EMS or XMS, but obviously the memory beyond 24-bit addressing can only be configured for EMS. Never tried it in a 386, though it should work.

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