Re: 15 pin vga to generic lcd converter

Posted on 2021-09-16, 08:59

by

by kaputnik

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

As the above, would say they're anything but universal. The dealers generally require you to specify the panel model when ordering the LVDS adapter board, and send it preflashed with the correct firmware, backlighting board, and cables. The LVDS protocol isn't standardized. Even if the hardware you …

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Re: 15 pin vga to generic lcd converter

Posted on 2021-09-16, 08:22

by

by kaputnik

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

it's not really universal, it's only for LCD panels with an LVDS interface. The annoying thing about it tends to be that depending on the panel in use, you'll need a different type of connector and inverter to hook up the backlight. Sometimes it's an LED backlight, sometimes it's a CFL backlight. …

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Re: A defrag for dos 7 do it even exist?

Posted on 2021-09-15, 09:20

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by kaputnik

in Marvin \ Software

in Marvin \ Software

Found a forum post from 2008 that mentions a few: http://www.bttr-software.de/forum/board_entry.php?id=4713 Paragon Partition Manager 7.0.1274 WDe 0.31 Partition Commander Thank you for the tip! I wasn't able to find the first program. Partition commander doesn't seem to have the defrag option, it …

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Re: Geforce 4 Ti 4600 Ram Chips

Posted on 2021-09-12, 15:50

by

by kaputnik

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I believe they are BGA chips yes. Good call on reflowing them I havent tried that yet so it's certinly an option. What sort of temperture am I aiming for ? is 220c ok like for the GPU. I'll look into some heatsinks too, theyre cheap and readily available so worth a try. Thanks ! Yeah, it's not like …

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Re: Geforce 4 Ti 4600 Ram Chips

Posted on 2021-09-12, 14:38

by

by kaputnik

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

GF4 series, that's where they started using vram in BGA packages, right? Seeing that you have a hot air rework station, have you tried simply reflowing the existing vram chips? Way simpler than replacing BGA packages with hobbyist equipment, and definitely worth a shot at least. If you haven't …

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Re: Strange and mysterious modification of Abit Be6

Posted on 2021-08-13, 13:07

by

by kaputnik

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Yeah, looks like corrosion of some kind to me too. Just clean it off thoroughly. If the copper traces are intact and there's no visible deeper damage, there's nothing more to worry about. If you like, you can cover it with a dab of PCB varnish or nail polish afterwards. A 2mm fibreglass brush is …

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Re: Any ideas on how to repair this Socket 7 motherboard?

Posted on 2021-08-12, 06:59

by

by kaputnik

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Had a somewhat older socket 7 board acting exactly like you describe due to a busted keyboard controller. It initializes very early in the boot sequence, before video etc, and the BIOS wouldn't get past it. AT/PS2 don't support hot plugging, wasn't all that uncommon that ppl killed their mobos by …

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Re: Can you identify this Baby AT Motherboard?

Posted on 2021-08-11, 07:47

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by kaputnik

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

If nothing gets in my way, i'm going to test my board today, in hope that the no components release the magic smoke. But I did some further measurements and found following. All the +5v pins are providing continuity to each other, I think think that's normal behavior. Also all the ground pins are …

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Re: Can you identify this Baby AT Motherboard?

Posted on 2021-08-09, 12:39

by

by kaputnik

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

kaputnik In the moment, I can't boot the board, at least not with a monitor. As I already said, I still need to get a VGA/SVGA first, before I'll be able to boot the system. The LCD Panel of the Portable is damaged, so I doubt there will be anything displayed there. However, I have a post-card, so …

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Re: Can you identify this Baby AT Motherboard?

Posted on 2021-08-09, 06:30

by

by kaputnik

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Can you boot the board? It might be too old - got very limited experience in anything older than S7 boards myself - but if if it was a thing back then too, it might show a BIOS manufacturer code during POST, that can be very helpful when trying to identify it. https://www.wimsbios.com/aminumbers. …

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Re: P3B-F and Coppermine in slotket troubles

Posted on 2021-08-08, 09:11

by

by kaputnik

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

@kaputnik, you made my day. Even though I have blisters on my fingers now. Using your technique and making a mess with WD40 eventually brought all my 370 CPUs to life on the P3B-F. Even the Cyrix III 600, which never worked in any of my boards and thus I thought was dead, runs fine not only in that …

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Re: P3B-F and Coppermine in slotket troubles

Posted on 2021-08-06, 09:52

by

by kaputnik

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Got a very similar slotket, that works just fine with Coppermine. IIRC the socket connections had some waxy residue on them though, perhaps flux, or some kind of electronics grease that had dried up. Mine was new in box. Rubbed the residue off and got it working by installing a CPU in the socket, …

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Re: Preferred IDE and Floppy cables?

Posted on 2021-02-13, 11:19

by

by kaputnik

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Also crimping my own cables. Got my hands on a roll of round ribbon cable a few years ago, and connectors cost next to nothing. So nice to be able to do custom lengths. All you need is a crimp or vice, some ribbon cables, and the IDC connectors. 34 pins for floppy, 40 for IDE. That sounds …

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Re: ATX I/O shield models for 3D printing

Posted on 2021-02-04, 21:23

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by kaputnik

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I hope you don't mind kaputnik, but I made some minor changes to your design to add a few more optional ports. AT IO shield 0.5.png I added a second PS/2 port for motherboards that have the PS/2 port soldered on. Like this: 20210117_205654.jpg Additionally, I added the option to replace either a …

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Re: ATX I/O shield models for 3D printing

Posted on 2021-01-11, 19:04

by

by kaputnik

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I don't mean to derail, but does anyone have the measurements where the 5 pin din keyboard connector would be on the plate? I have a bunch of blanks and just drilling out the holes would be easier for me. Here are the measurements I used for the AT I/O shield. Using the case aperture as reference: …

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Re: ATX I/O shield models for 3D printing

Posted on 2021-01-11, 08:11

by

by kaputnik

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Check the third post in this thread, isn't that more or less exactly what you're describing? Or am I misunderstanding you somehow? :) Only the DIN connector hole is premade, and there are cutting guides in case you want to install mouse or com/LPT ports. The third pic shows what it looks like fresh …

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Re: Socket 370 with ISA best motherboard

Posted on 2020-12-15, 11:07

by

by kaputnik

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Just buy some nice BX motherboard (like Asus P3B-F, P2B later revisions, similar ones from Abit, Gigabyte etc) and modify a slocket to use Tualatin, will run nicely at 133MHz FSB too, only thing is that AGP will be at 89 MHz which is no problem on 99% nVidia cards and 3DFx cards. Most ATI cards do …

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Re: Spots on a retro laptop display.

Posted on 2020-11-10, 10:45

by

by kaputnik

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Seen similar spots caused by foreign particles that's found their way into the panel, pushing on and deforming the backlighting reflective layer. Usually, it's not all that hard to disassemble or put together old panels as long as you're careful, could be worth the trouble to open it and have a look …

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Re: What are people doing for cheap cases these days...

Posted on 2020-11-06, 10:16

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by kaputnik

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

My personal favorite for ATX retro builds is the Cooler Master Elite 361 . Looks like it too has gone out of production, but that can't have been long ago, perhaps there are still vendors having them in stock? It's very compact to be a full ATX case, mostly due to the somewhat odd PSU placement. The …

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Re: Put a Pentium MMX 233mhz CPU in my DOS machine, still reads as Pentium-S 120mhz. What am I missing?

Posted on 2020-11-05, 23:06

by

by kaputnik

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

This what I'd need? https://www.amazon.com/20-Pin-Power-Supply-Adapter-Cable/dp/B01EDGS0KI Yep, that will work. If you don't mind waiting a while, you can get them on eBay from China for $3.25 a piece though. https://www.ebay.com/itm/18AWG-20Pin-ATX-to-2X-6Pin-AT-PSU-Converter-Power-Cable-Cord-for- …

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