Re: LG Flatron dead?

Posted on 2024-12-29, 14:25

by

by SSTV2

in Marvin \ Video

in Marvin \ Video

I remember having a similar problem with a LG Flatron monitor once, the CRT filament would heat up, it had HV and everything inside looked fine but the image simply wouldn't display. All I did to fix it was a complete disassembly, cleaning and reassembly, most likely a bad connection somewhere …

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Re: BIOS chip for PCChips M912 (486 Socket 3)

Posted on 2024-12-03, 00:53

by

by SSTV2

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

My guess would be that it's a mask ROM or OTP version of 27C1001, if you won't succeed reading it externally, try dumping BIOS from a running machine with "DUMPAT" or "GETROM" programs.

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Re: How to repair Trident VLB with sanded down pins?

Posted on 2024-10-26, 19:27

by

by SSTV2

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Interesting proposal, maybe I could just treat only the most damaged pins and leave the rest as is. So I'll apply +5V to the pin and the swab should be moist with the nickel solution and connected to ground? That's the general idea, except pads should be connected to the negative terminal as nickel …

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Re: How to repair Trident VLB with sanded down pins?

Posted on 2024-10-26, 16:58

by

by SSTV2

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Understandable, in such case, the best price-quality ratio for plating bare copper would be achieved by using nickel salts solution (nickel sulfate/chloride) which can be bought or made at home. For the electric current source, you can use any old AT/ATX PSU, 3.3-5V rails should do just fine. Now …

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Re: How to repair Trident VLB with sanded down pins?

Posted on 2024-10-26, 14:14

by

by SSTV2

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

The card is not worth investing money in, it will hardly ever regain its original look, because parts of the soldering mask around the edge connectors were also sanded away, I'd just polish them if I were in your place. Tinning is another option, but the end result won't be pretty.

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Re: Need suggestions for replacement Heatsink fans for Pentium Pro

Posted on 2024-10-26, 14:01

by

by SSTV2

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Old fans have always given me a headache, because most of them do not have a modern equivalent due to their specific shape, installation or appearance. So if the original worn fans have bearings and are just noisy, whirring and vibrating, I fix them by simply replacing the bearings, which can be …

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

Posted on 2024-10-20, 12:01

by

by SSTV2

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Worked on salvaging chips from this Matrox M3D that sadly got destroyed in shipping awhile ago . The memory chips appear undamaged and likely worth saving as spares. I also removed the main chip, but the damage to the pins resulted in a lot of them breaking off from where they had been previously …

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Re: Help me identify this Aztech I38-MMSN850

Posted on 2024-10-18, 20:26

by

by SSTV2

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

This card is not very promising considering that the previous owner removed several components from it. With "JMPCFG" and "JMPB0" jumpers absent, It's now set to read resource config data from the EPROM chip, which may be corrupt. A simple test can be done to determine the operation of the card, …

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Re: Cant install daemon tools 3.47 in windows 98SE

Posted on 2024-07-11, 13:34

by

by SSTV2

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Both files are binary identical.

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Re: Cant install daemon tools 3.47 in windows 98SE

Posted on 2024-07-10, 23:37

by

by SSTV2

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

It's a Windows Installer 2.0, look for "InstMsiA.exe" on this archived microsoft website.

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Re: Cant install daemon tools 3.47 in windows 98SE

Posted on 2024-07-10, 19:16

by

by SSTV2

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

This should help.

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Re: Repairing an old LCD game

Posted on 2024-06-27, 17:30

by

by SSTV2

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

That small signal transistor serves as a speaker driver, you need to connect the long blue wire coming from the transistor to the speaker and the short blue wire coming from the battery terminal to the board's positive power supply pad (most likely where the other end of the long blue wire was …

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Re: Clock Generator Overclocking

Posted on 2024-05-05, 21:31

by

by SSTV2

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

P5/P6 class chipsets from intel never supported asynchronous bus operation, this feature was meant for other chipset manufacturers, that did support it at the time.

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Aztech Multimedia Pro 16 ABO restoration tricks and wavetable header pinout

Posted on 2024-04-14, 15:55

by

by SSTV2

in Marvin \ Sound

in Marvin \ Sound

Not long ago I acquired a small lot of computer parts that included this Aztech sound card. It was in a pretty rough shape, obviously pulled from a computer that has been exposed to the elements for quite some time. Fortunately, only the top side had corroded and its effects seemed manageable, as I …

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Re: Help needed reviving AST 486 motherboards (SOLVED) + benchmark results

Posted on 2023-12-01, 16:45

by

by SSTV2

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

tt0ny wrote on 2023-11-30, 12:27: ah found 😀 i have the bios v1.0 as a bin file. can i convert to ast to possibly flash back ? Hi, it should be possible, but you'd have to convert it manually using a hex editor. That *.AST file has the main BIOS part inside (120KB) and it can be manually extracted …

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Re: Help needed reviving AST 486 motherboards (SOLVED) + benchmark results

Posted on 2023-10-18, 15:34

by

by SSTV2

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

If you suspect that the effects of the battery corrosion may still be affecting the operation of the EISA bus, I would advise you to pull the mainboard out and check the pins on the larger QFP chips with a needle, they may be loose. If everything checks out, then there might be some resource …

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Re: Help needed reviving AST 486 motherboards (SOLVED) + benchmark results

Posted on 2023-09-12, 22:09

by

by SSTV2

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Hello and welcome to Vogons! No need to apologize for posting in this thread, it will remain relevant for as long as this forum exists, simply because of the somewhat under-discussed, rare and unusual Premmia 4/XX series of computers. After I revived and tested the performance of the Premmia MB, I …

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Re: Need advice on how to flash SPD on a 440BX motherboard.

Posted on 2023-06-24, 13:10

by

by SSTV2

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

There is no need to desolder the SPD ICs in order to reprogram them, as they are directly accessible via the edge connector. You can use a spare DIMM slot or any dead motherboard and wire it to the programmer.

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Re: Socket 370 repair, restoring a missing tab

Posted on 2023-06-16, 20:20

by

by SSTV2

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Benchmark results of Unreal ver. 226, hardware on both M/Bs are identical. -Voodoo3 2000 AGP @167MHz, 1.00.70 drv., 128MB RAM, 640x480 high, no sound, no monsters, cycle #2. 6LX87: Celeron Mendocino @400MHz, @66MHz FSB, CL2-2-3 avg 59.7 min 23.7 max 119.7 Celeron Mendocino @500MHz, @83.3MHz FSB, CL2 …

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Re: Socket 370 repair, restoring a missing tab

Posted on 2023-06-16, 20:16

by

by SSTV2

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Depends on the heatsink, for the ones that have 2 slots you can just do like I did with a machine screw and nut: https://i.imgur.com/umd2NLIl.jpg If its one with 1 slot you could just drill and tap a hole above the unsupported end of the clip and use a machine screw with a couple of nuts thread up …

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