Re: Fake 486 Processor?

Posted on 2020-09-08, 22:05

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in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Definitely NOT fake, I've seen posts here and on CPU-World about them, they are just a very late date with a time specific logo. Get one to work at its rated specifications as shown on the chip and auction description. So far I don't see any evidence of a single person being successful, even on …

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Re: Bought these (retro) hardware today

Posted on 2020-09-08, 20:15

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in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Dang, I didn't even notice the 1200 boards and mediator 🤣. That is indeed a nice haul.

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Re: Bought these (retro) hardware today

Posted on 2020-09-08, 19:55

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in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Very nice. That should be very speedy with a 68040. 😁

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Re: Bought these (retro) hardware today

Posted on 2020-09-08, 19:44

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by wiretap

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Amiga 2000 Rev 4.x motherboard is my guess as well. Should be a pretty easy repair -- even with mine having terrible battery damage, I was able to revive it without issue. I only needed to fix 2 traces, and the traces on that board are pretty big. Edit, and is that a 68030 accelerator below it? That …

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Re: Fake 486 Processor?

Posted on 2020-09-08, 18:28

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in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I reported this listings via Ebay's counterfeit reporting tool.

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Re: Bought these (retro) hardware today

Posted on 2020-09-04, 23:20

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by wiretap

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

The texture? Many clone systems came like that. One way to replicate it is to use crinkle (wrinkle) coat paint.

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Re: How do YOU mount your CF2IDE card?

Posted on 2020-09-04, 22:32

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by wiretap

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

If you want it in a hard drive mounting location in an old case, just use any 3.5" to 2.5" SSD converter tray and use some velcro to stick it to that. (or better, use standoffs to mount it.. requires a drill, 2 m3 standoff risers, and 4 m3 screws) This is the best solution I've seen out them all …

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Re: Bought these (retro) hardware today

Posted on 2020-09-04, 19:15

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by wiretap

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Thanks for the explanations. Sounds like a nightmare depending on which country you live in. It's odd since they're all so close together. (like I couldn't imagine purchasing something from Ohio - 28 miles from me - and having to be charged a crap load of fees) lol Anyhow, somewhat back on topic. I …

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Re: How do YOU mount your CF2IDE card?

Posted on 2020-09-04, 14:36

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by wiretap

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

If you want it in a hard drive mounting location in an old case, just use any 3.5" to 2.5" SSD converter tray and use some velcro to stick it to that. (or better, use standoffs to mount it.. requires a drill, 2 m3 standoff risers, and 4 m3 screws)

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Re: Bought these (retro) hardware today

Posted on 2020-09-04, 14:20

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by wiretap

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

What's up with the duty fees and taxes in other countries? Is there some weird reason for price rape that high? I order stuff from all around the world on a weekly or bi-weekly basis and have never paid any import taxes or duty fees on anything. Also, DHL is usually the cheapest for me with …

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Re: Advice for computing area.. garage a bad idea?

Posted on 2020-09-04, 02:25

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by wiretap

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I don't keep any computer stuff in my garage, as the temperature and humidity swings get crazy in Michigan. I can't remember when it was, maybe two winters ago it went from -15F all the way up to 55F or 60F and back down to 5F all within a few days. I actually had solder joints in my garage door …

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Re: What retro activity did you get up to today?

Posted on 2020-09-02, 17:24

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by wiretap

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Found a 12VDC fan to put in my A2000 power supply rebuild (blowing in to draw in cool air), and also epoxied all the legs on my front panel so they don't break off again.. cleaned it up and it looks great. :) Now to build the TerribleFire TF534 40MHz.. https://imgur.com/DLD1Fiih.jpg https://imgur. …

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Re: What retro activity did you get up to today?

Posted on 2020-09-01, 16:24

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by wiretap

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I'm using 2.04 Kickstart and WB, same issue. I messaged the vendor to see if there's a resolution. I believe it is a firmware issue on the USB keyboard adapter. I think they may have compiled the firmware for GB key layouts. Hmmm.... I have googled this issue, however I have not found any talk …

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Re: Where to find IDE cables without blocked pin?

Posted on 2020-09-01, 01:15

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by wiretap

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I just poke the hole out of the new ones if I can't find an old one. Just take a lighter to a push pin or jeweler screwdriver, heat up the sharp end, then shove it through.

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Re: What retro activity did you get up to today?

Posted on 2020-08-31, 11:49

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by wiretap

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Got the USB keyboard KB_RESET working on my A2000 with a jumper to Gary pin #5. Made it easily reversible with a mini grabber instead of soldering to the chip. https://imgur.com/4hLjJ4c.jpg Nice. Good job. By the way. Have you solved the issue with the #-sign on the USB keyboard? I have tested with …

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Re: What retro activity did you get up to today?

Posted on 2020-08-31, 04:23

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by wiretap

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

A little bit of late night power supply replacement. Using a SFF Enhance 200w ATX power supply to replace the innards of my Amiga 2000 power supply. It has -5VDC, so that's good. Plent of room to spare inside, and cost me nothing since I took it out of a Shuttle XPC that I had a spare chassis for. …

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Re: Should I invest in a UPS for my 486?

Posted on 2020-08-31, 01:09

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by wiretap

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Apparently rolling blackouts are thing now in California? How is Silicon Valley handling this? What happens when all Google servers suddenly lose power? Datacenters all have properly sized emergency diesel generators or CTG's - the auto-transfer switch senses the grid disturbance and starts …

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Re: What retro activity did you get up to today?

Posted on 2020-08-29, 16:46

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by wiretap

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Got the USB keyboard KB_RESET working on my A2000 with a jumper to Gary pin #5. Made it easily reversible with a mini grabber instead of soldering to the chip.

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Re: Bought these (retro) hardware today

Posted on 2020-08-29, 16:42

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by wiretap

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

SCSI CD-ROM for my A2000.

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Re: Micro ATX 486 - what's the degree of interest?

Posted on 2020-08-28, 19:19

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in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

For general core design, here is a decent starting point for integrating use of an original processor with I/O: https://www.retrobrewcomputers.org/doku.php?i … linux-sbc:start

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