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

Posted on 2025-02-18, 07:45

by

by Daniël Oosterhuis

in Marvin \ Sound

in Marvin \ Sound

honest question, why are these cards so sensitive? I posted on here a while ago about one of my projects using the PicoGus not working and I've had NUMEROUS cards I've put together by hand just not work right away until I reflowed solder. I've since switched to just having the chips soldered on by …

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

Posted on 2025-01-15, 21:59

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by Daniël Oosterhuis

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I've heard people talk about recapping the CD & power boards too, but in my case everything seems to work fine now, so I'm leaving it be until it breaks haha. Mine came from Japan, and I have noticed that devices with known bad caps do tend to be worse over there. Some first gen PowerMac stuff I …

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

Posted on 2025-01-15, 08:43

by

by Daniël Oosterhuis

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Spent the last weekend and yesterday afternoon building a new logic board for my SEGA MegaCD. The previous one had severe cap leakage, leading to corroded solder joints that had completely let go on one side of the QFP. My attempts to reflow it just started to cause bent pins and screwed up pads, as …

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

Posted on 2024-09-19, 07:54

by

by Daniël Oosterhuis

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Just unfortunate this one is dead What made you think the chip was dead? Have you tried installing the chip on the board? Or using a tester to examine the contacts? Do you know that the chip Banshee has unused contacts? I did install it on the board, and it didn't even get slightly warm, whereas …

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

Posted on 2024-09-16, 20:55

by

by Daniël Oosterhuis

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Woah, nicely done. I've got to do the same at some point with one of my banshee cards that wasn't helped by a reflow. I also have the same card you have but it went from no VGA output to 100% working with a reflow so I was quite lucky there: https://www.vogons.org/viewtopic.php?p=1218210&#p1218210 …

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

Posted on 2024-09-16, 08:05

by

by Daniël Oosterhuis

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

This weekend, I reballed the PCI Creative Blaster 3DFX Voodoo Banshee a colleague gave me to try and fix. The card had artifacting issues on cold boots, that would slowly fade as the chip got hot. Once properly hot, Glide games worked just fine (starting them while the card was still artifacting …

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

Posted on 2024-09-05, 06:49

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by Daniël Oosterhuis

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I started the day with a bit of hybrid retro-ing. I became overjoyed when I picked up a stack of BigFoots (CY, TS, AND TX) and wanted to make a face for them. I've used spare drive adapter faces before and they work, so I threw one into the clone-o-matic and BAM! Faces for everyone! XD It just …

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

Posted on 2024-07-22, 08:46

by

by Daniël Oosterhuis

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Daniël Oosterhuis wrote on 2024-07-17, 07:01: Installed a totally normal OS on my iMac G3 the other day 😜 NT3.51 support has been added to maciNTosh with release v0.05, so that too had to be given a try 😁 Filename PXL_20240720_193831797.jpg File size 653.92 KiB Views 1043 views File license CC-BY …

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

Posted on 2024-07-17, 16:57

by

by Daniël Oosterhuis

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Otherwise, I wonder if this technique on the physical Macs can be used on Qemu PPC? It doesn't work on QEMU from what I understand, but most of the development of maciNTosh was done with DingusPPC, a relatively new PowerPC Mac emulator. Rairii has his own fork catered towards maciNTosh …

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

Posted on 2024-07-17, 07:01

by

by Daniël Oosterhuis

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Installed a totally normal OS on my iMac G3 the other day 😜

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Re: Bought these (retro) hardware today

Posted on 2023-12-29, 17:03

by

by Daniël Oosterhuis

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

The last thrift shop visit of the year did not disappoint! Between the rubbishy Pentium 4 laptops, one lonely 1998 Toshiba Satellite Pro with its charger sat on the shelve for 15 euros, marked as tested and working. It's a 470CDT, with a Pentium 200MMX, 32MB of RAM and a 2.1GB hard drive. It's quite …

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Re: Fake painted Pentium CPUs

Posted on 2023-09-18, 08:15

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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

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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

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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

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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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