Re: ITX-Llama (Vortex86EX ITX motherboard)

Posted on 2023-07-05, 06:28

by

by perhenden

in Marvin \ System Specs

in Marvin \ System Specs

Eivind wrote on 2023-07-04, 22:27: Any other suggestions for improvements? Is there a way to connect it to an external midi device over a gameport/db15? Or a joystick? 😀 Is the atx power 24 pin? That would be easier to use these days.

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Re: 5.25 drive Toshiba FDD 6881H1R jumper settings - solved

Posted on 2023-06-21, 20:31

by

by perhenden

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

The similar drive Toshiba, FDD 6882A1K 01 rev A, can use the same jumper settings. I've tested both. They look close to identical, visually. Circuit boards look identical. Filename 20230621_222107.JPG File size 243 KiB Views 56 views Keywords: FDD6882-A1K, FDD6882

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5.25 drive Toshiba FDD 6881H1R jumper settings - solved

Posted on 2023-06-20, 20:00

by

by perhenden

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I got this 1.2MB 5.25 drive marked with Toshiba FDD 6881H1R 03 rev A. BR 418930-3 3A-3. Fuji. I couldn't find any information on it online. Thefore I share information on its jumper settings and look. This jumper setting made it work as A: on an AT-class system Images of the board: 20230620_215612. …

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Re: 5 1/4 floppy drive jumper settings (Mitsubishi MF504C-318UG)

Posted on 2023-06-20, 19:51

by

by perhenden

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Here is my configuration: Many thanks! That got my two drives working! For reference, in case it can help someone later, the jumpers on my MF504C-318M was originally set like below. Drive marked with drive letter A (MF504C-318M -rev A): HR, MM, MS, IR, DC - DS1 - SB Drive marked with drive letter B …

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Re: 3/486 hybrid motherboard - replacement BIOS

Posted on 2023-01-08, 10:04

by

by perhenden

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

The ami ftp links are dead now, but are archived here https://ia802601.us.archive.org/18/items/2015 … megatrends.com/

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Re: LCD monitor VGA compatibility database

Posted on 2023-01-01, 13:50

by

by perhenden

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Monitor: multiQ mq215-B1 Native res: 1024x768, 16-bit Scaling: ?? Aspect rto: 4:3 Machine: AMD k6-2 400 Windows 98/DOS + DX4-100/Dos Video card: Geforce2 GTS/32MB + CL-GD5428 UniVBE: No Tested by: Per Christian Henden OVERALL COMPATIBILITY RATING: 11, good Application P F CP Notes …

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Looking for a 486 bios, Intel Classic E-series

Posted on 2022-11-18, 19:25

by

by perhenden

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I've got this motherboard, but I'm missing the bios, and the bios files distributed by Intel only supports upgrade of an existing matching system, and the files that are part of the upgrade package cannot be combined to a working bios. I was told "these unfortunately can't be concatenated, intel did …

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Re: ATX to AT pico Adapter! + Fan Headers, -5v, and 3.3v (Released)

Posted on 2022-11-05, 15:28

by

by perhenden

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

So is the c1 c2 placment reversal not causing a issue here? It’s actually the people building them putting them in backwards only? Sounds like it. I can see that happening when orienting the capacitor based on its markings and ground, because usually ground is the most negative end, but not here (- …

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Re: Looking for Information: Melco Buffalo HP6-MX800

Posted on 2022-10-18, 17:56

by

by perhenden

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I was able to clock it down to a 4x multiplier my 366 device (goes up to 5.5x) using the DIP switches. With at 50MHz FSB, it runs at 200MHz in an old Socket 5 motherboard 😀

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Re: The comprehensive list of all modern reproductions of vintage sound cards

Posted on 2022-10-18, 17:53

by

by perhenden

in Marvin \ Sound

in Marvin \ Sound

There's also CMSLPT for Creative Music system, from Serdashop

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Re: General MIDI hardware comparison recordings

Posted on 2022-10-17, 21:17

by

by perhenden

in Milliways

in Milliways

The links above are dead. The ftp-link still works. I found there is now another tool to play XMI files available, PX player, see PX Player: play MID and XMI files under DOS

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Re: Acer mid-1990 model Bios search - Acer Acros, AcerPower

Posted on 2022-07-24, 12:47

by

by perhenden

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Best I know is https://ultimateretro.net

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Re: Orpheus Soundcard: a new DOS soundcard with SPDIF/OPL3/MPU support

Posted on 2022-07-17, 23:15

by

by perhenden

in Marvin \ Sound

in Marvin \ Sound

Question about the SPDIF output: does the OPL3 sound pass through it? Also, what is a good way of recording SPDIF output from the Orpheus? A Sound Blaster live/audigy/X-Fi with digital coaxial (SPDIF) input I know about, but I'm having trouble getting one. Are there other sound cards I can use?

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Re: Looking for Information: Melco Buffalo HP6-MX800

Posted on 2022-06-25, 07:51

by

by perhenden

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Thanks! That's well written documentation. My takeaway is that switch 1-2 can be used to underclock the CPU, and overclocking it requires a hardware mod. Also, replacing it with a k6-iii or CPU using <2.2v requires hardware modding.

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Re: Looking for Information: Melco Buffalo HP6-MX800

Posted on 2022-06-24, 13:13

by

by perhenden

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

The documentation you linked to says something about removing the CPU to access 6 dip switches. I wonder how that can be done. I only see the 2 dip switches on the vrm board of the adapter.

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Re: Stocking up on hard to find parts // repairs of 90's equipment in the next 20 years

Posted on 2022-06-19, 09:00

by

by perhenden

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Thanks, I got simm slots, CPU sockets and AT power connectors from here https://www.peconnectors.com/sockets-pga-cpu- … memory/hws5040/

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Re: Socket 5 / 7 Pentium Overdrives. Multipliers? SMP?

Posted on 2022-06-06, 13:09

by

by perhenden

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Sphere478 wrote on 2022-06-04, 07:44: I’m wondering as to the function of the three small gold pads. On the socket 3 overdrive they controlled the multiplier in the following way: if fan is working (not shorted?) then 2.5x, else 1x. Here is a video on that https://www.youtube.com/watch?v= …

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Stocking up on hard to find parts // repairs of 90's equipment in the next 20 years

Posted on 2022-06-06, 13:02

by

by perhenden

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I'm thinking of future repairs of motherboards and other equipment. Are some old parts getting more and more difficult to find? I think so. For example, I've bought some ISA-slots, RAM for ISA-cards, 5->3.3v voltage regulators, DIP cache chips, DIP-28/32 EEPROM, IDE-cables, floppy-cables, and AT- …

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CPU adapter for Socket 7 - Melco/Buffalo HK6 interposer

Posted on 2022-06-06, 12:53

by

by perhenden

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

avxstudios wrote on 2021-02-24, 17:54: I recently upgraded the CPU to a Melco HK6 interposer with a 333mhz AMD K6-2 Did you receive any documentation with it? I have one, and I'm looking to understand the DIP switch settings, how to enable the added cache, and how to switch to a higher-rated k6-2 …

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Re: Gravis ultrasound clone - how to dump ROM? STB SoundRage 32 Pro

Posted on 2022-04-24, 18:14

by

by perhenden

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Thanks, then I'll just overwrite, and possibly modify the "rom" to use the original PCI ID. Or just modify the Windows driver to recognize the Gravis id.

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