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Thread: Carputer finally installed....but it won't boot

  1. #1
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    Carputer finally installed....but it won't boot

    Title says it all, here's what I have:
    OPUS 120W PSU
    ON-OFF-ON switch with constant 12V and ACC from the stereo harness

    Here's what I know:
    Power is getting to the 6 wire pigtail.
    PC won't boot with switch in any position.
    Switch from PSU to mobo is installed correctly.


    That's about all I know. I'll try to answer any other questions as best as I can to solve this.
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  2. #2
    FLAC
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    try to isolate the problem, see if you can plug the mobo into a standard atx psu, and see if it'll boot.

  3. #3
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    It will.
    I was using an ATX PSU when I was testing and building my skin, then I brought it in again just to make sure I didn't fry anything while I was outside with it and it still works.

    I'm about to remove the rocker switch and connect directly to the ACC and see what happens.
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  4. #4
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    You should have the mb wire connected to COMMON of the switch.
    VIA Pico ITX, M2-ATX clone, 7" Seform 800x480 LCD Touchscreen, Dual 2x75WRMS Mini Amps, IDE-CF & SATA-CF adapters, 8GB (Sys) & 32GB (MP3s) CF, ELMscan5USB, Slot-load DVD, Craig Brass DAB+/FM USB module, Odyssey Navigator
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  5. #5
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    Quote Originally Posted by RevheadKev View Post
    You should have the mb wire connected to COMMON of the switch.
    It is...well was. I took it out of the equation completely and still no go. I origionally had constant 12V for getting gas or whatever (on right), ACC for normal use (on left) and off for valet (middle/off). The PSU was connected to the common. Now that it's removed it's a moot point anyways.

    I also took the power connector out of the HDD and tested it with the truck running and am getting exactly 0V. It seems power is going into the PSU but not coming out.
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  6. #6
    FLAC
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    any error code (blinks) on the power supply?

  7. #7
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    Not that I can see. I'm not even sure where the LED is supposed to be. I can't tell by the manual or anything.
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  8. #8
    FLAC
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    there should be at least one light, if it aint on or blinking you could have a blown fuse, or broken psu.

  9. #9
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    Fuse on the PSU and under the hood still good. Guess I should call OPUS on Monday.
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  10. #10
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    OK, so you have 12V to the mb but what about the momentary input from the usual button ? Have you got that wire connected from the psu ?
    VIA Pico ITX, M2-ATX clone, 7" Seform 800x480 LCD Touchscreen, Dual 2x75WRMS Mini Amps, IDE-CF & SATA-CF adapters, 8GB (Sys) & 32GB (MP3s) CF, ELMscan5USB, Slot-load DVD, Craig Brass DAB+/FM USB module, Odyssey Navigator
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