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Thread: The Molex mystery woooooooh

  1. #1

    The Molex mystery woooooooh

    This one might be right up Fusinfun's alley but I'll take a knowledgable reply from anyone who knows the answer. Why are there two grounds on a Molex plug? If the grounds get crossed down the line can it or would it do damage to an electrical component?
    The reason I ask is because while working at the shop last week and wiring up the SATA connectors, apparently the ground positions do make a difference. Is it also true for Molex plugs?

  2. #2
    Master Modder Tazz's Avatar
    Join Date
    Feb 2006

    The Molex mystery woooooooh

    Grounds shouldn't matter. If you trace them back in the power supply you will likely find that the lot terminate at the same location.

  3. #3
    Clear Coat
    Join Date
    Jul 2006

    The Molex mystery woooooooh

    Technically the two grounds are supposed to be separated one is for 5v grounding and one is for 12v grounding. I've mixed them up on many a cheap power supply while messing around with the molex connectors and never fried anything, but your mileage may vary.

    Many people solder them together when doing custom projects and I haven't ever seen anything bad happen from that.

    Sort of a whishy washy answer if you know what I mean, but *shrug* I can't really tell you any more definitely.

  4. #4

    The Molex mystery woooooooh

    Ok, I knew there was at least some kind of difference but i think mixing matching shouldn't do much if any dmage hopefully.

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