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Thread: Please help w/ wiring

  1. #1
    Overclocked phen0m's Avatar
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    Default Please help w/ wiring

    I need to know a little about what goes where. I am building my new computer and it is sweet(well, will be). It is almost all put together except for some wires. Why do the fans have 3 connectors? Two are transparent-ish white with four huge pin-like things inside them. The other connector thing is a white-beige piece with 4 holes. Do I hook them all up or what? Are they all used and if so, where do they go? I mean, to which thing on the power supply.
    On my cd drive, there is a cable that came with it that goes into the slot labled 'sata power'. At the end of it, is one of those transparent-ish white pieces with 4 gigantic pins. But in the middle, a sata connecter is put there. What is that for? I checked my power supply's sata connectors and they are the same exact as the one on the cable, so they wouldn't interlock or anything. Do I leave it there or what?

    Ohh, and what does FDD mean? I saw on my motherboard manual something about FDD blah blah. What is FDD?
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  2. #2
    Fresh Paint Spidermeld's Avatar
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    Default Re: Please help w/ wiring

    FDD is Floppy Disk Drive
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  3. #3
    . Spawn-Inc's Avatar
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    Default Re: Please help w/ wiring

    FDD is for the floppy drive.

    the "transparent-ish white with 4 gigantic pins" are molex connectors. you only need to connect 1 per fan, the reason they have 2 is so they can be joined into each other.

    the other connector is a 4 pin connector, it should look like this

    as for the sata drive i'm not fully sure of what your talking about but i think you have one of these? you can just plug a molex from the psu into it or if you psu is new enough it should have sata power plugs.
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  4. #4
    Measure once, curse twice nevermind1534's Avatar
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    Default Re: Please help w/ wiring

    I use the small fan headers on the motherboard until I run out of them, then I use the molex plugs. Only use one or the other on each fan.
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    Resident 100HP water-cannon operator SXRguyinMA's Avatar
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    Default Re: Please help w/ wiring

    some MB's use the smaller 4 or 3-pins to get RPM data as well

  6. #6
    Measure once, curse twice nevermind1534's Avatar
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    Default Re: Please help w/ wiring

    A 3 pin fan will work in a 4 pin motherboard fan header.
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  7. #7
    Welder Of Aluminum bartvandenberg's Avatar
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    Default Re: Please help w/ wiring

    arent 4 pin headers usually only for cpu fans though?
    correct me if i'm wrong, thats just what ive understood. I've never noticed more than the cpu fan header having 4 pins for a pwm fan

  8. #8
    Measure once, curse twice nevermind1534's Avatar
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    Default Re: Please help w/ wiring

    Quote Originally Posted by bartvandenberg View Post
    arent 4 pin headers usually only for cpu fans though?
    correct me if i'm wrong, thats just what ive understood. I've never noticed more than the cpu fan header having 4 pins for a pwm fan
    Usually it is, but I do have a case fan that has a 4 pin plug, and my motherboard actually has two 4-pin headers on it.
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    Quote Originally Posted by progbuddy View Post
    It's probably the extreme radiation from the nuclear core in your phone. Push the control rod all the way in.
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