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Thread: Carputer works on bench, but not in car? HELP please...

  1. #1
    Constant Bitrate
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    Carputer works on bench, but not in car? HELP please...

    the god damned thing ran fine in the car for a few times. it worked great after i got my audigy NX card (external) wired in and working. a few days later... it wouldn't power up.
    In the car Im getting power to the PSU and all fuses are good but it will not power up.
    the carputer works fine when plugged into my ghetto power supply on the bench in my house,, but just not in the damn car!!! Ya can't have a freakin CARputer that won't work in the car...!
    What gives?

    I really need help cause im loosing interest in this project (my first baby will be here any day now... ) and i want it running smoothly before winter hits.

    please help with ideas on whats wrong or info on things i can check to see whats wrong ...
    thank you guys.
    i have a Opus 90w PSU and Epia m10000 MB.

  2. #2
    FLAC ukchris's Avatar
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    Do the lights on the Opus flash? If so in what sequence?

    Is the power switch connector the right way round?

    Is the ignition connection good?

  3. #3
    Admin. Linux loser.
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    Bugbyte's Avatar
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    Are you trying to power it up with the car running or off? If off, try starting the car and seeing if it will power up.
    Quote Originally Posted by ghettocruzer View Post
    I was gung ho on building a PC [until] just recently. However, between my new phone having internet and GPS and all...and this kit...Im starting to have trouble justfiying it haha.
    Want to:
    -Find out about the new iBug iPad install?
    -Find out about carPC's in just 5 minutes? View the Car PC 101 video

  4. #4
    ddn
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    Do you have the power-on cable connected from the Opus to the MB?

    Bad battery, below 10V?

    Bad 12V on signal to the Opus?

  5. #5
    Constant Bitrate
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    constant 11.7v without motor on, 13.6v with it on.
    I found out the issue however is the external sound card. without it being powered, the computer starts up and runs just fine. With the USB cable plugged in... it won't start. When i had the computer on and working and then tried to plug in the USB cable to the computer, it shut it off completely, not even a green blinky light on the Opus...nothing.

    i have the soundcard power supply hardwired into the ATX harness, with a good 5v supply to it. I am plugging in the SC to the front USB ports on my Morex case because the 2 on the rear are used for the touchscreen and GPS receiver.

    Could it have something to do with front vs. rear USB ports and how thier powered? Come to think of it... i have the same thing happen on my desk top when i try to plug in a thumb drive on a "front" USB port; it will shut down the computer instantly. But when i plug it into a spare port on my keyboard the computer stays on.

    Okay... so now whats wrong and/or what are my options.

  6. #6
    Admin. Linux loser.
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    Hmmm. I have a similar problem on my Epia M10000. If you boot with the flash drive in it, it hangs. Without, it loads fine and you can plug the drive in later with no problem.

    I've been told it's a driver issue but have never bothered to track it down.
    Quote Originally Posted by ghettocruzer View Post
    I was gung ho on building a PC [until] just recently. However, between my new phone having internet and GPS and all...and this kit...Im starting to have trouble justfiying it haha.
    Want to:
    -Find out about the new iBug iPad install?
    -Find out about carPC's in just 5 minutes? View the Car PC 101 video

  7. #7
    Para Laura thanatos106's Avatar
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    Hava the same prob if I don't turn on the ext drive.

    Thanatos.
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  8. #8
    Newbie launter's Avatar
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    Thanks for the post, solved one of my many problems. Why are computers so *****e
    145 watt micro-atx power supply
    LV-670M motherboard
    1.7 mobile pentium
    600w pure sine wave inverter
    250gb hard drive

  9. #9
    Constant Bitrate
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    So, other than a possible driver problem, any other ideas?

    thanx

  10. #10
    Variable Bitrate Curly_cat's Avatar
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    ensure that you have the most up to date drivers and then let us know if this fixes it or not.

    : Jetway J7F2 1.5Ghz Mainboard : Cubid 3688 : CarNetix CNX-P1260 :
    : Netgear 802.11g PCMCIA : 2 x LinITX 7" Screens :
    : BU353 USB GPS Mouse : Panasonic UJ845 DVDRW :

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