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Type: Posts; User: GiGaBiTe

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  1. Replies
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    Yes, this was a common design up until about...

    Yes, this was a common design up until about 10-15 years ago where the 5 and 12V rails were regulated together and shared a toroidal choke. The SE PSU is a bit different though because it has two 12V...
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    Didn't even notice that ribbon cable. It looks...

    Didn't even notice that ribbon cable. It looks like it may be to monitor the power supply rails, the wires are too small to draw any current from.

    I'd try what I said in the above post and see...
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    Chop the connector off and chop the ATX connector...

    Chop the connector off and chop the ATX connector off a power supply and match wires to voltages. I've had to do it several times for proprietary PSUs, and I'm currently working on a Mac SE FDHD...
  4. Just make sure that you use the right pot. The...

    Just make sure that you use the right pot. The ohms rating is half of it, but you need to determine if they're linear or logarithmic pots.
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    That trace is not intact, it's vaporized. If...

    That trace is not intact, it's vaporized. If there's still continuity, it's either because the soot left behind is conductive, there's a tiny sliver of trace left, or one of those mosfets/diodes died...
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    If the power supply has an AC out plug, the click...

    If the power supply has an AC out plug, the click may be the relay closing to activate the output.

    I'm not great with switching PSUs, but when I find that a primary side mosfet has blown up or...
  7. Thread: Zenith Z-180

    by GiGaBiTe
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    I did a bit of googling and found a guy that has...

    I did a bit of googling and found a guy that has a few blog posts about reverse engineering the connector. Turns out its a modified ST-506 protocol to better fit laptop use.
    ...
  8. Why make it more complicated than it needs to,...

    Why make it more complicated than it needs to, use an Arduino and program it to interpose the signals the way you think they should work.

    If the outputs drive something that requires moderate...
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    PLCC sockets aren't difficult to solder, you can...

    PLCC sockets aren't difficult to solder, you can use a hot air tool at 250C to get them soldered on the board without melting the socket.
  10. I'd also suggest trying a different power supply,...

    I'd also suggest trying a different power supply, I've had weird issues like this on older machines where the power supply was the culprit. The voltages would appear fine, but the ripple was so high...
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    I know, I put it on there. I've had that board in...

    I know, I put it on there. I've had that board in a drawer for 20 years waiting to have another SE FDHD to install it into.

    It's a Total Systems Gemini board with a 25 MHz 68030 and 16 MB of RAM....
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    Where in Central Texas are you? It's a big place....

    Where in Central Texas are you? It's a big place.

    I could definitely use those parts if its within driving distance.
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    Well after lots of diagnostics and repairs, I got...

    Well after lots of diagnostics and repairs, I got the spare floppy drive to work. There was oxidization on the pins in the connector that were causing weak connections.

    I had the machine working...
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    I have that problem in my 31 year old truck, it...

    I have that problem in my 31 year old truck, it has that nasty foam as insulation in several places inside the dash. Some of it has disintegrated, while other parts of it have turned to mush. I've...
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    Such board configurations are uncommon because of...

    Such board configurations are uncommon because of design limitations and it didn't make sense to have both at the same time.

    VLB is basically the 486 bus extended out to a slot, while PCI is its...
  16. Asus makes sound cards under their Xonar brand...

    Asus makes sound cards under their Xonar brand name. They use customized C-Media sound chips.
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    If by industrial you mean like server cases, nope...

    If by industrial you mean like server cases, nope they can get filthy just like desktop PCs. The reason they don't is when properly installed in server rooms with heavy duty A/C filtering, there...
  18. Have you owned one, because you're dead wrong...

    Have you owned one, because you're dead wrong about it not being a hot CPU.

    I serviced a customer machine a couple of years ago which had an FX9590. It was super unstable, which turns out because...
  19. Firefox is so massively bloated now that even...

    Firefox is so massively bloated now that even modern systems have trouble running it. I abandoned it back when they decided to kill modding support in FF 57 (which is why the vast majority of users...
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    Mac SE FDHD floppy issues

    So I bought a Mac SE FDHD from another member on this forum and it arrived mostly fine. It powered up and booted to the internal hard drive, which has System 6.0.8 and Finder 6.1.3 (IIRC). The CRT...
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    I had similar issues, ReactOS wouldn't run right...

    I had similar issues, ReactOS wouldn't run right on any hardware I had at the time. I could get the OS up and to the desktop, but that was about it. Getting any Windows applications to even attempt...
  22. The PM6500 isn't RAM limited, 128 MB was more...

    The PM6500 isn't RAM limited, 128 MB was more than enough for its time and the internet back in the late 90s. The problem is Classilla and the whole Mozilla codebase is bloated and full of memory...
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    You need to take pictures of this stuff, wiring...

    You need to take pictures of this stuff, wiring one of those switches incorrectly can lead to stuff blowing up because it's switching mains.

    If the switch has a neon lamp inside it, one pair of...
  24. I stopped buying Creative products after the...

    I stopped buying Creative products after the Daniel_K fiasco.

    https://www.wired.com/2008/03/creative-fixing/

    For those that weren't there, Daniel_K made custom drivers for I think the X-Fi...
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    The switch looks like the terminals are bolt on...

    The switch looks like the terminals are bolt on instead of spade, probably a size difference.
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