Windows 8 and 8.1 Forums


Installing a 3 pin -> 2 pin connector for PWR LED

  1. #11


    Posts : 2,627
    win8.1.1 enterprise


    I have never seen a locking tab on Front Panel wiring connections on the motherboard

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  2. #12


    Sydney, Nova Scotia, Canada
    Posts : 6,490
    Windows 10 Education 64 Bit


    Quote Originally Posted by caperjack View Post
    I have never seen a locking tab on Front Panel wiring connections on the motherboard
    I think I know what your referring to, like on the power supply connector that plugs into the mother board. We're talking about a little tab that holds the metal contact in the plastic shell. If you lift it slightly you can pull the wire and the contact and all comes out. You'll be left with the wire and the metal contact that's crimped to its end in one hand, and the plastic shell in the other.
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  3. #13


    Quote Originally Posted by alphanumeric View Post
    Quote Originally Posted by caperjack View Post
    I have never seen a locking tab on Front Panel wiring connections on the motherboard
    I think I know what your referring to, like on the power supply connector that plugs into the mother board. We're talking about a little tab that holds the metal contact in the plastic shell. If you lift it slightly you can pull the wire and the contact and all comes out. You'll be left with the wire and the metal contact that's crimped to its end in one hand, and the plastic shell in the other.
    But this is about the case's front panel wires that connect to the motherboard's Front Panel I/O, not power supply cables that connect to the motherboard's power connectors. So I agree with caperjack and there should NOT be any locking tabs. If you reverse the connectors from the case's front panel, no harm will be done. The power and reset buttons will still work and at most, the LED lights for power and HD activity will not light.

    If there are locking tabs, then someone has the cables mixed up.
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  4. #14


    Posts : 2,627
    win8.1.1 enterprise


    the image in the first post is not something that comes a part ,[with out a pair of wire cutters ],not in any machine I have ever worked on ,or built since 1998
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  5. #15


    I think before we jump to any conclusions we need to wait until the OP comes back and responds to my post #9 above.
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  6. #16


    Sydney, Nova Scotia, Canada
    Posts : 6,490
    Windows 10 Education 64 Bit


    Quote Originally Posted by caperjack View Post
    the image in the first post is not something that comes a part ,[with out a pair of wire cutters ],not in any machine I have ever worked on ,or built since 1998
    Ah, you can actually see the retaining tab in those pictures. If you look at one on one of the case cables, one side has a small opening where you can see the metal connector inside. If you carefully lift the little bit of plastic below the opening, towards the wire, the wire and metal contact will slide out. Push it back in the same way it came out and it will latch back into the plastic cover again. All those case cables with the black plastic covers are like that. When I was still working as an electronic technician, we had the pins, covers and crimping tool to make our own cables for equipment we fabricated.
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  7. #17


    N. Calif
    Posts : 2,585
    W10 Pro (desktop), W10 (laptop), W10 Pro (tablet), W10 (laptop)


    They're talking about removing the wire from the housing itself. The wire terminals have a metal tab and the housing itself has a plastic tab. When the terminal is inserted into the housing the 2 tabs lock the terminal in place so it stays in place. KYHI described lifting the plastic tab to release the terminal but in my experience it's easier to use a pick tool or even a paper clip to push down on the metal tab of the terminal itself which will release the terminal and let you remove it without cutting the wire.
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  8. #18


    Sydney, Nova Scotia, Canada
    Posts : 6,490
    Windows 10 Education 64 Bit


    Quote Originally Posted by Itaregid View Post
    Quote Originally Posted by alphanumeric View Post
    Quote Originally Posted by caperjack View Post
    I have never seen a locking tab on Front Panel wiring connections on the motherboard
    I think I know what your referring to, like on the power supply connector that plugs into the mother board. We're talking about a little tab that holds the metal contact in the plastic shell. If you lift it slightly you can pull the wire and the contact and all comes out. You'll be left with the wire and the metal contact that's crimped to its end in one hand, and the plastic shell in the other.
    But this is about the case's front panel wires that connect to the motherboard's Front Panel I/O, not power supply cables that connect to the motherboard's power connectors. So I agree with caperjack and there should NOT be any locking tabs. If you reverse the connectors from the case's front panel, no harm will be done. The power and reset buttons will still work and at most, the LED lights for power and HD activity will not light.

    If there are locking tabs, then someone has the cables mixed up.
    Yes I know, I was just using the power cable as an example of a connector that has a locking tab on it to keep in mated with the plug it plugs into.. Locking tab as in you can't unplug the connector without releasing the locking tab. That's what I thought Caperjack was referring to.

    The tab in question is one to release a wire and the metal end crimped to it from the shell. Two different tabs.
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  9. #19


    Posts : 2,627
    win8.1.1 enterprise


    maybe so ,I must have missed that feature ,will have to did out a old computer and have a look ,
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  10. #20


    Posts : 2,690
    Windows 3.1 > Windows 10


    Attachment 57579Attachment 57580
    Those are terminal lock tabs
    they lock the terminal (metal pin) into the plastic terminal housing (terminal block or connector)
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Installing a 3 pin -> 2 pin connector for PWR LED
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