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Thread: DC-DC USB Won't Turn Foxconn PC ON

  1. #1
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    DC-DC USB Won't Turn Foxconn PC ON

    I have my setup running just about great except for one issue.
    The computer will not turn back on from hibernation.

    Setup is
    Foxconn NT330I
    DCDC Usb
    Liliput LCD
    Small car Amp
    2007 Santa Fe

    Right now the DCDC Usb PSW points are soldered to the power button on the computer (computer does have a sleep button).
    DC DC USB is set as follows Automotive mode @ 18V Offdelay of 15min and hardoff @ 1min.

    The computer will hibernate 15 min after car gets turned off however when i turn the car back on the computer does not turn on unless I manually press the power button.
    Remote wire provides a constant 12V when the car is on and supplies none when the car is off.

    I am very new to this and have just slightly above average electrical knowledge but really need some help.
    Have been searching the web for the last 2 monthss & putting up with this is getting frustrating so any help or a direction to go would be appericated.

  2. #2
    Variable Bitrate billmee's Avatar
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    Quote Originally Posted by jeromejas View Post
    Remote wire provides a constant 12V when the car is on and supplies none when the car is off.
    I wonder if it needs constant power?

  3. #3
    MySQL Error soundman98's Avatar
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    Quote Originally Posted by billmee View Post
    I wonder if it needs constant power?
    it sounds like that aspect is working correctly.(remote wire is triggering the system to shut down..)

    so to be clear, you are connecting the dc-dc to the sleep button?

    if you manually trigger the sleep button with the pc off, does the pc turn on?



    the method of my madness:
    i am thinking that the sleep button is only telling the pc to sleep, and does not do anything else.
    being that you need to press the power button every time, i am thinking that you might need to connect to the power button instead, and define that to sleep the pc, this would also in turn allow the pc to turn on when it is triggered..

  4. #4
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    Quote Originally Posted by soundman98 View Post
    it sounds like that aspect is working correctly.(remote wire is triggering the system to shut down..)

    so to be clear, you are connecting the dc-dc to the sleep button? No it is connected to the Power Button
    if you manually trigger the sleep button with the pc off, does the pc turn on? In theory it should I have always used the power button.


    the method of my madness:
    i am thinking that the sleep button is only telling the pc to sleep, and does not do anything else.
    being that you need to press the power button every time, i am thinking that you might need to connect to the power button instead, and define that to sleep the pc, this would also in turn allow the pc to turn on when it is triggered..
    I like your thought process because this is exectally what I did. LOL

  5. #5
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    DC-DC USB Won't Turn Foxconn PC ON

    This is a simple problem, when the DCDC USB board sends the power supply to the pc, it sends at the same time the pulse in the psw pins !
    But the power supply is not yet ready to the pc use it....and to turn on !
    Its like if you just plugin a power supply of a portable pc to the wall, and at the same time you press the power on bottown in the portable computer, if its to much fast it will not turn on !!!
    I have the same problem, and i asked manny times to the DCDC USB company how to delay the pulse in the PSW ( pins that turn on the pc ).
    Until now no answer back to solve the problem, they are having manny problems to understand the problem !!!

    ( If you connect a batery to the pc ) it will turn on because the power is already in the pc.
    You can test that if you give power to the pc and let the DCDC USB send the signal on to the pc ! It will turn on, the power is already in the pc !

    Its only a simple question of delay the psw pins, this function is not in the DCDC USB !!

    Paulo Lobo
    Portugal.

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