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Modding question about power and switches

Discussion in 'Modding' started by Pre_Tender, 21 Nov 2006.

  1. Pre_Tender

    Pre_Tender New Member

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    ok, i've found some really old ibm aptiva case i'm gonna chop up :dremel:
    but... i've got a question...

    can i connect a fancontroller or a dvd drive on a molex AND get a switch over the power so that i can totally turn off the fancontroller or dvd drive?

    and if so...what switches should i use and how should i wire those switches

    i hope i'm not boring the crap out off everyone with a question like this but i'm kind of new to electronical stuff... (love to learn but still a bit carefull)
     
  2. r4tch3t

    r4tch3t hmmmm....

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    Trying to get this straight, you are connecting the Fan controller and DVD rive to the same molex and want to be able to switch each individually?

    . . . . . . . . . ___Switch____DVD
    . . . . . . . . /
    -Molex---<
    . . . . . . . . \___Switch____Fan Controller

    If so, you can use basically any switch. Wire the grounds together in between the molex and the perhiprial (DVD or Controller) And put the switch in the ground lines.


    5V --------------------------------
    Ground--------_____Switch___-----
    Ground-------/. . . . . . . . . . . \----
    12V -------------------------------


    And do that between the DVD and Mole and the Controller and Molex.

    Is that of any help?
     
  3. Pre_Tender

    Pre_Tender New Member

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    yes, and no...your reaction is very helpful but i'd like to wire them in another way :hehe:
    i'd like to wire it like this :

    -----molex----dvd
    -----molex----fancontroller

    so, i just have to connect my switch like this:

    ---molex---switch---dvd
    and place the switch in 1 of the 2 black wires (ground)?
    Than, why shouldn't i put the switch over the power, won't that work?
    or if you put a switch over the ground, that's better?

    PT
     
  4. r4tch3t

    r4tch3t hmmmm....

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    You will need to putt the switch over both the ground wires for it to work as they each have thier own ground and if you only switch one ground it will only switch 12V or 5V on/off. The grounds are connected in the power supply so it is okay to wire them up.
    You will need to get both ground (Black) wires and cut/extend them and put the switch in between.
    And behold my 1337 paint skills
    [​IMG]
    There, mayby that could explain better (worth a thousand words?)

    So that help?
    Feel free to ask more questions if needed :thumb:
     
  5. Pre_Tender

    Pre_Tender New Member

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    Yes.... actually you've just helped me out of some real problems :rock:
    Thanks, and indeed the pic says more than a thousand words
    i'm really gonna use your solution :thumb:

    but just 1 minor thing...
    is it ok for me to do this to a dvd or fan controller?

    PT
     
  6. Springs

    Springs Boing boing

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    fan controller yes...

    dvd drive im gonna say no... because im gonna guess it will much up windows... remember there is a ise cable connected which tells windows its there etc...

    unless im wrong in that assumption and someone will correct me..
     
  7. stevie1556

    stevie1556 New Member

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    You could run the dvd with the switch, but you could only switch the switch when te PC is turned off, as it is an IDE device.
     
  8. John_Edward

    John_Edward New Member

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    If the IDE cable only has the DVD drive, you can yank the cable off when the computer is running, if it is not playing a disc at the same time.
    If it has, well, the other one will stop functioning too
    Only thing is, that to get windows to recognize it again, you have to plug it in and reboot the comp.
    But why would someone want to shut an DVD drive off, as it makes no noise when it is not reading a disk, and when it is, there is no logical reason to shut it off.
     
  9. Pre_Tender

    Pre_Tender New Member

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    there is nog logical reason to shut if off...but i was playing with the idea of *being able to turn off practically every component*... so this just sprung into my head...

    anyway...TNX and i'll most definately get a switch over the fan controller
     
  10. cpemma

    cpemma Ecky thump

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    Switch the hot wires, not the grounds. The DVD and fan controller cases are probably grounded too.
     
  11. r4tch3t

    r4tch3t hmmmm....

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    Thats a point, you would need a double switch though.
     
  12. Pre_Tender

    Pre_Tender New Member

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    mixed opinions ???
     
  13. r4tch3t

    r4tch3t hmmmm....

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    Nope, no mixed opinions, cpemma is the one who knows electronics really. I hadn't thought about the casing being grounded, and they usually are (for the DVD drive at least) So you would need a double pole, single throw switch. Like this.
    Wired up like this
    [​IMG]
     

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