Re: Fake painted Pentium CPUs

Posted on 2023-09-18, 08:15

by

by Daniël Oosterhuis

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Never heard of fake CPUs, especially not during that era. Can't have been that common, but keep in mind it would be really easy to buy a CPU now, and make it look like a fake, then try to sell it as a "rare fake," or use one cpu to fake another more expensive one in the present day. Just saying. It …

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Re: Mach64 VLB with mod?

Posted on 2023-09-18, 08:09

by

by Daniël Oosterhuis

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Concerning the soldered wire, did some cards actually get sold like that with factory patch jobs or were they sold as refurb aftermarket products? It's a more common thing in the electronics industry. A small error in the PCB design slips through, that may cause anything from rare bugs to full loss …

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Re: List of open-source PC hardware projects

Posted on 2023-09-12, 06:42

by

by Daniël Oosterhuis

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Not PC, but 68k and PowerPC Mac related, though I figure it still fits the thread: 68kMLA user Demik released a PCB design for a 65% keyboard using the ADB controller IC of the AppleDesign rubberdome mushboards, dubbed Design68 (GitHub repo here) . If you have a bad condition AppleDesign board, or …

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

Posted on 2023-09-06, 09:38

by

by Daniël Oosterhuis

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

DerBaum wrote on 2023-09-05, 10:21: Daniël Oosterhuis wrote on 2023-09-05, 07:21: There's a 3D model of such a bezel for printing on Thingiverse. Awesome! Thanks a lot... I had not used the right keywords for my search.. Thanks again. No worries, I had to look around for a while before finding it …

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

Posted on 2023-09-05, 08:25

by

by Daniël Oosterhuis

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Munx wrote on 2023-09-05, 08:17: Does Windows 7 count as retro yet? Steam thinks so. Not as much Steam, as Chromium. Chromium dropped support for 7, and Steam (like most garbage PC "software" these days that are nothing but a packaged up web browser) heavily relies on it.

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

Posted on 2023-09-05, 07:21

by

by Daniël Oosterhuis

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Does anybody know where i can get the plastic casing around the power switch? It seems to be a 1:1 clone of the IBM XT/AT powersupply. I would even get it 3D printed if there are files available... The switch is working, just the black plastic frame is broken. There's a 3D model of such a bezel for …

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Re: options for PQFP to PGA adapter

Posted on 2023-09-04, 08:46

by

by Daniël Oosterhuis

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

They do exist from back in the day, but as a fully assembled CPU product with the AMD 386DX40 attached. They appear to be more common than the ceramic PGA equivalent CPU. I haven't seen anyone recreate it these days, though, which would be neat as there are cheap PQFP 386s available from China that …

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Re: Orpheus II soundcard thread *** LT board now available ***

Posted on 2023-09-04, 07:55

by

by Daniël Oosterhuis

in Marvin \ Sound

in Marvin \ Sound

just to make clear, this does not mean that all previous orpheus cards are "inferior" , this was another change needed because of price and availability issues. Ah, I was wondering when that change was going to come through. As I mentioned on the De-CQM'ing SB16/SB32/AWE32 thread a little while ago …

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Re: Sound Blaster 16 Clones

Posted on 2023-08-24, 08:04

by

by Daniël Oosterhuis

in Marvin \ Sound

in Marvin \ Sound

So you made a new card with less noise? Or is there a trick to make the old one run more quiet? I did not, Keropi & Marmes did at one point. CMI 8330 is a very, very capable sound chip. I have 2 other ISA cards built using it, and while the noise floor is not comparable to MK8330 they are also just …

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Re: What's up with my CRT, and, are these contemporary Creative speakers even shielded?

Posted on 2023-08-09, 20:53

by

by Daniël Oosterhuis

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

They do have some shielding, but I think specifically enough to be placed relatively close next to the monitor, not in front of it. Do you see any distortion or dark patches if you place them next to the monitor at a normal distance (eg. not right up against it)?

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Re: 3D printed AWE64 Gold bracket

Posted on 2023-08-09, 20:48

by

by Daniël Oosterhuis

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Lots of things 3d printers are good for but for bracket replacement I want metal. The made with pcb ones don't work either, metal or nothing, I'd rather get the tooling to fab the metal parts. Just like I'd want original stenciling on pcbs not off named labeling to avoid copyright, copyright be …

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Re: Alternative Socket 7 heatsink clamp - spring?

Posted on 2023-08-09, 10:47

by

by Daniël Oosterhuis

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Another alternative is to form a new heatsink clip, like OP did here. Labor intensive, but pretty slick. I got a few boards with broken tabs that could use that treatment.

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Re: Quantum Bigfoot for an HP Pavilion 6350?

Posted on 2023-08-09, 09:41

by

by Daniël Oosterhuis

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

As far as I know, the TX and TS models were the most reliable of the Bigfoot series, coming out after the generally less reliable original Bigfoot and Bigfoot CY drives. I'd say get a Bigfoot TX or TS if you can find one for a decent price, if you like those drives and would like one again, even if …

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Re: Airbrushing / painting as an alternative to retrobrighting?

Posted on 2023-08-08, 11:58

by

by Daniël Oosterhuis

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

It is something I'm looking into for some of my stuff. For "generic" AT(X) case frontplates, any suitable beige or off-white color would do, though matching it to the painted metal shell is still best. Cases with raised or lowered lettering are the easiest as they won't lose it under the paint, …

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Re: Bought these (retro) hardware today

Posted on 2023-08-07, 07:38

by

by Daniël Oosterhuis

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

How am I supposed to remove the bracket so I can make it straight? I don't want to pull on it and risk breaking something. Thanks. It's indeed the rings on the audio jack holding it in place. I think something like a lens spanner would be the ideal tool to use, as it can be adjusted to grab the …

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Re: CRT experience

Posted on 2023-08-07, 07:32

by

by Daniël Oosterhuis

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I really enjoy the look and feel of a CRT on my old machines. Besides enjoying the display output, it of course works better with older systems that expect the display to be able to jump between resolutions relatively quickly. That said, a big part of it for me is the aesthetics too. I'm slowly and …

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

Posted on 2023-08-07, 07:14

by

by Daniël Oosterhuis

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Today is a good day to sunbright my 286.. sunbright for yellowed plastics is a myth /joke spread by some idiots, it does not work what really works is Hydrogen peroxide , both in cream, or liquid Both work, as in temporarily bleaching the yellowed plastics. Neither actually fix the underlying issue …

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Re: Looking for that specific hard drive sound.

Posted on 2023-07-20, 06:46

by

by Daniël Oosterhuis

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Be careful with those, a lot of these Quantums have internal rubber bumpers on the magnets for the heads to land against, which turns to goop. Lots of 'em die because of it, you can try opening them up and removing the bumper, and replacing it with something that fits (an example is silicone tubing …

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Re: PicoGUS: ISA sound card emulator with Raspberry Pi Pico (Gravis Ultrasound, AdLib, MPU-401, Tandy, CMS)

Posted on 2023-07-18, 07:28

by

by Daniël Oosterhuis

in Marvin \ Sound

in Marvin \ Sound

I also had some from Ali with a totally different pinout... Just curious, is the situation in some countries w/re availability of Pi Picos bad enough that AliExpress Picos would be cheaper? Over here in the Netherlands, I pay about four bucks per Pico from an authorized RPi dealer who has loads of …

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Re: Why no Dual-OPL3 soundcards?

Posted on 2023-07-17, 13:47

by

by Daniël Oosterhuis

in Marvin \ Sound

in Marvin \ Sound

So many new Sound Blaster replicas, AdLib clones and XT motherboard designs, but apparently no interest to develop something new in this regards. It's as if the DOS community/scene is stuck in the past or something. 🤷‍♂️ I mean, we are, by definition, stuck in the past? The software and games we …

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