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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Re: ega cga vga

Posted on 2022-02-05, 08:57

by

by rmay635703

in Marvin \ Video

in Marvin \ Video

As for VGA, that can be made to work with RGB SCART monitors and TVs as well, but it will require a scan doubler. What? Scan doubler is used to connect a 15 kHz HSYNC video source to VGA monitor ie. 31 kHz. The other way around would be "scan halfer" - and yes, such devices do exist, see eg. …

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Re: FIC VA-503+ and K6-2+/570

Posted on 2022-02-04, 05:06

by

by rmay635703

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Not that it helps but back in the day I never could get an Ethernet card to work in a Via board, I’ve been told there is a bug fix and special driver that fixes timing issues to get Ethernet working

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Re: Dual cpu/core and windows 9X/ME

Posted on 2022-02-04, 03:03

by

by rmay635703

in Marvin \ Software

in Marvin \ Software

rloew does have a Multi-Core SDK for 9x but you'll need to code for it but I don't know if it's available anywhere. Even if it isn't it proves that it's possible. https://msfn.org/board/topic/145512-multiprocessor-support-in-98se/#comment-933209 MULTCORE $20 + $1 S&H SDK to support Multiple Cores. …

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Re: The Socket 3 POD83 and overclocking

Posted on 2022-02-03, 16:44

by

by rmay635703

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I have a POD63 that will not run stable at 2.5x33 or at 1x40, leading me to believe the hold up is the BIU, not the core per se. Think a volt mod would do it any good? Have you checked your 5 volt PSU rail for noise and steady voltage? More voltage “should “ bleed over to increased stability to all …

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

Posted on 2022-02-01, 15:03

by

by rmay635703

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Myself and others have installed pc100+ SDRAM in sizes of 128mb and 256mb to old VX motherboards due to scarcity and availability The board must support 3.3v modules and most of the time will “see” 32mb or 64mb of the module letting you max it out by wasting memory. So far such a configuration …

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Re: How far back do you have to go for a graphics card not selling for an inflated price?

Posted on 2022-01-29, 04:14

by

by rmay635703

in Milliways

in Milliways

ODwilly wrote on 2022-01-29, 03:47: The R9 390 for $150 or less seems like a solid card. Iv got a Fury and my dad has a r9 290 I picked up when they were $80 a piece and they chew through pretty well. Those cards are around $300 now days

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Re: How far back do you have to go for a graphics card not selling for an inflated price?

Posted on 2022-01-28, 20:13

by

by rmay635703

in Milliways

in Milliways

I found a gpu that always seems to be in stock https://www.dell.com/en-us/work/shop/dell-nvidia-quadro-gv100-32gb-graphics-card/apd/490-benn/parts-upgrades?gacd=9646510-1025-5761040-266794296-0&dgc=st&ds_rl=1282786&gclid=EAIaIQobChMI7avZzqDV9QIVgSCtBh0viQ--EAQYByABEgLqX_D_BwE&gclsrc=aw.ds&nclid=n_ …

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Re: Early P5 + P54C (Socket 4 + Socket 5) mainboard

Posted on 2022-01-28, 04:07

by

by rmay635703

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

TMC/Mycomp I've got a dual socket 8 board from them that's been a huge headache, was everything they made just bargain bin shit? Slow, problematic, difficult to configure, random incompatibilities Sadly though not as “cheap “ as you would want for such troubles. The board I had lost the onboard …

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