Re: Old 486 strange ram problem

Posted on 2022-04-01, 16:07

by

by BitWrangler

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Yes, you don't want to remove the sockets right away, but to test the connections right through from source to inputs of the CPU an/or chipset with a continuity tester, maybe they can have jumper wires to route them if they are damaged inside the board.

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Re: Bought these (retro) hardware today

Posted on 2022-04-01, 15:52

by

by BitWrangler

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Downclock RAM and core on the 480, if pic comes in fine then, then consider recapping.

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Re: Old 486 strange ram problem

Posted on 2022-04-01, 15:48

by

by BitWrangler

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Yes, they need one more address line to be recognized is what I'm saying so you need to check for breaks or corrosion in that from all the sockets.

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Re: Bought these (retro) hardware today

Posted on 2022-04-01, 15:09

by

by BitWrangler

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Scored an 80% (? ish) set of key caps at the thrift. Now to toss out the grubby crappy ones off my Model M SSK.... Spoiler Heh, it's that date, April 1st, yeah these aren't going on the SSK nor am I about to trash the originals off it. Actually wanted it in the pic, but it's somewhere not easy to …

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Re: About video broadcasting...

Posted on 2022-04-01, 14:47

by

by BitWrangler

in Marvin \ Video

in Marvin \ Video

Donovan V. wrote on 2022-04-01, 04:36: weedeewee wrote on 2022-03-31, 20:04: Teletext Ok. It turns out it is Closed Captioning. I didnt know that. I thought it was some other sort of signal like RDS in radios and things of that sort. Im guessing that is also an option too. In ATSC there's the …

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Re: I recently found this hardware, AKA the Dumpster find thread.

Posted on 2022-04-01, 14:37

by

by BitWrangler

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Today I made the mistake I always do and never learn from it. A couple of days ago at work we were told that another section of our company gets our basement and we move to another basement, take anything that's usable to the new basement and take out the trash. So I "took out the trash". IMG_ …

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Re: I recently found this hardware, AKA the Dumpster find thread.

Posted on 2022-04-01, 14:33

by

by BitWrangler

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

My work around for saving hardware from recycles is swap it out for something else. Works better in an office environment then an actual recycle center but have done it once or twice. the electronics I'm dropping off is the excuse to go over to the ewaste section. and as long as the workers are …

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Re: Old 486 strange ram problem

Posted on 2022-04-01, 14:18

by

by BitWrangler

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Yes, is implied, I use 4 simm at time ;-) @bitwrangler can be a20? Is near keyboard controller? But… with 8 simm of 256k each I have 1.6mb, gate A20 work? Right, so it's not the logical KBC or soft A20 problems but maybe physical at/near the SIMM sockets, stopping the sockets registering over a 1MB …

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Re: I recently found this hardware, AKA the Dumpster find thread.

Posted on 2022-04-01, 02:55

by

by BitWrangler

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I mean you hear it once or twice, that's information, you hear it 500 times, it seems a tad too much like advertising, and does advertising ever tell the truth?

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Re: I recently found this hardware, AKA the Dumpster find thread.

Posted on 2022-04-01, 01:33

by

by BitWrangler

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Yeah, but I'd totally download a car.

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Re: Old 486 strange ram problem

Posted on 2022-04-01, 00:01

by

by BitWrangler

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Could be A20 line problems, either physical, scraped trace, shorted tantalum... or logical, messed up chipset, KBC or switching gate.... or soft error, BIOS corruption etc.

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Re: I recently found this hardware, AKA the Dumpster find thread.

Posted on 2022-03-31, 22:35

by

by BitWrangler

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Cuttoon wrote on 2022-03-31, 22:28: Small catch: I don't own a car. Meh, download one http://sevenesque.com/plans/

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Re: Market value for popular or rare classic computer hardware

Posted on 2022-03-31, 18:03

by

by BitWrangler

in Milliways

in Milliways

Or we have an elegant notation for a more civilised age such as £1/19/11+3⁄4d which is a farthing shy of two quid.

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Re: About video broadcasting...

Posted on 2022-03-31, 17:55

by

by BitWrangler

in Marvin \ Video

in Marvin \ Video

Might be subtitles.

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Re: Bought these (retro) hardware today

Posted on 2022-03-31, 17:52

by

by BitWrangler

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I am confident enough of my basic multimeter skillz that I just grab any old PSU cables I see and reconfigure them as necessary. Got a small stash of spares I just fish into when need arises.

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Re: Bought these (retro) hardware today

Posted on 2022-03-31, 17:03

by

by BitWrangler

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Cuttoon wrote on 2022-03-31, 11:43: Live!Drive, GA-6BXC mobo and quality case be damned. If those are called out in the description it's going north of $150

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Re: I recently found this hardware, AKA the Dumpster find thread.

Posted on 2022-03-31, 16:58

by

by BitWrangler

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Nice, that's a $1000 haul if it all came off eBay these days 🤣

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Re: Bought these (retro) hardware today

Posted on 2022-03-31, 00:44

by

by BitWrangler

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

luckybob wrote on 2022-03-30, 20:59: to say nothing of quad-floppy support. Well spotted, also good advice, first rule of quad floppy club, don't talk about quad floppy club. ... otherwise you'll find yourself having to explain it and it gets to be like a tech version of Who's on First.

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Re: Bought these (retro) hardware today

Posted on 2022-03-31, 00:39

by

by BitWrangler

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Must. Resist. The. Wedge. Of. Cuteness.

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Re: Most disappointing games?

Posted on 2022-03-30, 21:09

by

by BitWrangler

in Milliways

in Milliways

I wasn't much into those kinda games but IIRC Mortal Kombat for DOS actually ran well on quite low hardware, but the controls sucked a bit.

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