Re: Max cpu voltages?

Posted on 2022-03-11, 17:31

by

by rmay635703

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Usually the ibm branded cpus were more tollerant to oc compared to Cyrix. Yep, that's more precisely what I had read about the Cyrix fabs at IBM. They did not outright select their yield and gave the shitty ones to Cyrix. But, they had several production lines and their own chips were made on the …

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Re: Tillamook SMP mod.

Posted on 2022-03-03, 16:53

by

by rmay635703

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Sphere478 wrote on 2022-03-03, 11:45: So I really think a 4.5x exists in this core. 400mhz isn’t enough gotta overclock to 450mhz 😀 Also Tillamook was supposed to go to 333mhz but the chips were never released, wonder if a rare engineering sample exists?

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Re: Are all OEM creative labs sound cards trashes and what "value" mean in creative labs denomination?

Posted on 2022-03-01, 16:54

by

by rmay635703

in Marvin \ Sound

in Marvin \ Sound

The funny thing is literally none of the “consumers” cared about soundblaster problems. It was just something you accepted or worked around. Coming from pcspeaker and Tandy 3 voice my vibra 16 in my AST Adventure Advantage 4/66d was an amazing breath of fresh air. If something sounded wrong it was …

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Re: Celron MMX 366 MHz or Pentium 2 MMX 400MHz

Posted on 2022-02-28, 18:26

by

by rmay635703

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Since I was always moving systems I had tons of trouble with “slot” systems didn’t matter if it was Slot A or 1 , my slot a burned traces or bad solder joints to PCI 1, sdram 1, temperature sensor, fan headers I kept it running a decade by constantly reseating things and by hard wiring components …

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Re: Pentium 233MMX 66mhz sdr sweetspot.

Posted on 2022-02-27, 21:43

by

by rmay635703

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Add k6-3 and use as much memory as you want

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Re: Has anyone else tested hardware that seems defective but comes back to life on it's own?

Posted on 2022-02-24, 22:25

by

by rmay635703

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

My Shinko CHC445 and hp 733 Celeron take about 10 minutes of being plugged in then the power switch starts working

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Re: Best OS for a 286?

Posted on 2022-02-24, 19:13

by

by rmay635703

in Milliways

in Milliways

I always thought the 386SX is the best 286 but I am more and more leaning towards replacing my 386SX-16 with a 286-12 myself - so this could be a good place to ask as any: How much memory for a 286? 1MB? 2MB? 4MB? And what are the memory management options? Can you have EMS on a 286 and if so, how? …

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Re: Wordle for Windows 3.1

Posted on 2022-02-24, 05:03

by

by rmay635703

in Milliways

in Milliways

chrismeyer6 wrote on 2022-02-23, 21:22: Your program has made it to Ars Technica https://arstechnica.com/gaming/2022/02/develo … lone-of-wordle/ And onto apple news infinite scroll

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Re: What would cause a 5 1/4 Floppy drive to work fine in Windows but not DOS?

Posted on 2022-02-24, 05:01

by

by rmay635703

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Before twist or after? Could be in the cable position for drive B Or you might have a drive old enough to have configuration jumpers putting it to the wrong number

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Re: Babylon 5 remake?

Posted on 2022-02-22, 16:21

by

by rmay635703

in Milliways

in Milliways

CW 🙁 🙁 🙁 🙁

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Re: Help Identify Old DTK Graphics Adapter

Posted on 2022-02-17, 22:21

by

by rmay635703

in Marvin \ Video

in Marvin \ Video

64kb of vram certainly sounds like a Hercusneeze clone

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Re: Will SDRAM-modules fit onto this Socket 7 Board (Soyo SY5VD)?

Posted on 2022-02-17, 22:09

by

by rmay635703

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Too bad a Buffalo/Melco Hyper memory module interposer doesn’t exist for CPUs other than the 386DX You could just dump more memory into the cpu socket independent of the chipset Also nice would be a vlb or PCI memory expansion device, said device would run roughly the same speed as 60ns memory and …

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Re: Help me decide on a PS/2 - what's your favourite?

Posted on 2022-02-16, 03:56

by

by rmay635703

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

The SLC or faster Eduquest units do pretty well for their low specs

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Re: RS-232 keyboard interface, would it be possible ?

Posted on 2022-02-15, 11:57

by

by rmay635703

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

In the 1970s, so called "ASCII keyboards" existed. They were used to interface to the SIO chip of Z80 terminals / CP/M computers.. These had no chassis and looked like this: https://makezine.com/2006/08/18/how-to-build-an-ascii-key/ The 1976 era CASI Apollo VP2 an s100 bus computer portrait device …

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Re: Overclocking dual pentiums

Posted on 2022-02-14, 16:14

by

by rmay635703

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Too bad the Pentium 266mmx chips can’t be made to work in a dual board

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Re: Upgrade CPU Gateway P5-75?

Posted on 2022-02-14, 16:12

by

by rmay635703

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

You know, this is something I wanted to test for a long time, but I never got around to it. In theory it should be possible to run a K6-233/ANR on a socket5 board. :) Yes, the K6 is a socket7 My socket 5 boards had very wimpy linear regulators, even after adding a heat sync and fan things would get …

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Re: VGA games with only 16 colors

Posted on 2022-02-11, 18:25

by

by rmay635703

in DOS

in DOS

Jo22 wrote on 2020-09-21, 05:42: Cyberdyne wrote on 2020-09-21, 05:02: Well Commodore 64 had also only 16 colors to choose from, but it had better and more natural colors. Thath IBM/ZX Spectrum RGBI Pallette is not natural for games. Yes, C64 colours looked softer, more pastel also, I think. C64 …

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Re: Info on this motherboard

Posted on 2022-02-11, 17:35

by

by rmay635703

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Back when putting onboard video meant doubling the size of the motherboard

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Re: Miniscribe M8225XT Controller

Posted on 2022-02-07, 18:07

by

by rmay635703

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Olivetti Prodest PC1-HD, Commodore, there were a few systems with 8bit IDE https://www.vcfed.org/forum/forum/genres/pcs-and-clones/47164-true-ide-8-bit-xt-xta-hard-disk-replacement 8 bit ide released after the 16 bit Winchester version and never made much sense My other thought was the ide standard …

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Re: Miniscribe M8225XT Controller

Posted on 2022-02-07, 17:03

by

by rmay635703

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Odd one wonders if an actual XT 8-Bit only controller could just use the generic “16bit XTIDE” bios one uses in the home built 16 bit XTIDE controller? XT compatible drives are getting hard to find, might need to bite the bullet and get a 16 bit compatible card. The only system I encountered XT …

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