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Thread: Bought the OPUS case/PS, what's this piece?

  1. #1
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    Bought the OPUS case/PS, what's this piece?

    I recently purchased and received the mp3car/OPUS computer (this one).

    Anyways, it is basically an OPUS mini-itx case and 120W power supply. I opened up the PC to connect a normal power supply so I can install my software and also install a PCI card. Everything seems to makes sense to me, but I'm not sure what this one piece is. In the first picture below, what is the board circled in red? It seems to have a white connector on it (circled in blue), which I am assuming the 3-pin cable (red, black, yellow wires) plugs into (3-pin cable circled red in the second picture). If I already have the OPUS power supply connected to the acc/battery/gnd (via another supplied 6-pin cable, also seen in picture 2), then what is the purpose of the above-mentioned 3pin? Is it powering something else separately?



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  2. #2
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    bump? In case the pix aren't loading, here they are without the markings:

    In picture 1, I am referring to to board located to the left of the metal rectangle, and the white connector sticking out at the top left of that small board:



    In picture 2, I am referring to the 3-pin and 6-pin cables that are lying on top of the case:

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  3. #3
    Variable Bitrate Redian's Avatar
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    the 3 pin is what connects the opus to the ignition and the battery.

    the 6 pin... ill get back to you on that... lemme research


    edit: its a 6 pin power adaptor for pci-e cards... usually its for videocards and such..

    at least i think thats it, i have the same plug going into my video card on my rig
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  4. #4
    Low Bitrate jollyeskimo's Avatar
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    On the opus 120W the 3pin out is the auxiliary 12v output.

    Yellow is 12v+ out, black is ground, and red is no connection (useless...I removed mine from the 3pin)




    The 6 pin is the power input / onoff / remote. Two blacks are grounds, two yellows are +BATT (voltage in), red is on/off/acc/ignition, and the last one is the remote on/off (blue)


    This PDF is the most useful for owners of both the big black opus case and the opus mini case as they both share similar 120W power supplies and the 2.5" hard drive module (which sports the auxiliary 12+ output). I use the aux output to hook up my LCD.

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    Quote Originally Posted by jollyeskimo View Post
    On the opus 120W the 3pin out is the auxiliary 12v output.

    Yellow is 12v+ out, black is ground, and red is no connection (useless...I removed mine from the 3pin)


    The 6 pin is the power input / onoff / remote. Two blacks are grounds, two yellows are +BATT (voltage in), red is on/off/acc/ignition, and the last one is the remote on/off (blue)


    This PDF is the most useful for owners of both the big black opus case and the opus mini case as they both share similar 120W power supplies and the 2.5" hard drive module (which sports the auxiliary 12+ output). I use the aux output to hook up my LCD.
    Thanks for the info and link! With my case and power supply, I received the documentation only for the 120W (http://www.opussolutions.com/pdfs/DC...k%20Guide.pdf), which has no mention of the aux 12v. Hence the confusion.

    Anyways, what exactly is this doing? What if I don't connect this at all? What will happen in that case? On the documentation it states "+12V Switch output. A max. It is switched ON when the mother board power is turned on. It can be used to power devises or to control remote inputs of other peripherals". You stated that you used the aux output to hook up your LCD--if your black goes to ground, and you didn't use your red (you removed it), then that means your LCD is hooked up to the yellow wire, correct?

    If so, then what is the difference between that and the "remote on/off" (blue) wire? Do you use the blue wire anywhere or can you just not use it?

    Sorry for so many questions, but your input is greatly appreciated!
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    I guess a simpler question would be this: if I have a Xenarc TS that I want to power, do I hook it up to the 3-pin or the 6-pin?

    If it is the 3-pin, I'm guessing you connect to the yellow wire?

    If it is the 6-pin, I'm guessing you connect to the blue wire?

    I'm leaning towards 3-pin yellow wire since it is a 12v. Then what do you use the blue wire on the 6-pin for?
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  7. #7
    Low Bitrate jollyeskimo's Avatar
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    You would definitely want to use the 3 pin to power something like your LCD.

    The remote wire on a 6 pin connector is used only to turn on/off remote devices like amps and such after a timed delay (default 20 seconds) to avoid bass thump and the such. The auxiliary 12v output actually powers the device (no delay), whereas the remote only turns it on or off (device is not powered by the opus).

    I think the auxiliary 12v output is regulated to a certain extent as well.

  8. #8
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    Excellent, that makes sense then. So in my case I won't using the remote wire (blue) at all. And the yellow wire will run to my Xenarc TS.
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