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Thread: OPUS 120W -1 green flashing led

  1. #1
    Newbie maddop's Avatar
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    OPUS 120W -1 green flashing led

    Hi All,

    I have an OPUS 120W power supply with VIA EPIA SP13000 Nehemiah Mainboard.

    My car is BMW 320D with standard kit.

    My OPUS is wired using 8AWG wire, 2x +ve direct to battery and 2x -ve direct to battery.

    I have 12v ignition direct to OPUS.

    I am getting 1 green flashing LED which indicates the battery is below expected voltage. I have used the factory jumper settings as my battery should fall into this category.

    What am I doing wrong?

    I purchased it from linitx and have emailed both them and also OPUS directly for some tech support.

    I have previously had a carpc but was using the carnetix psu and this was working fine.

    PLEASE HELP SOMEONE....

    Thanks in advance,
    Paul.
    BMW E46 (year 2000)
    CARPC installed and working!!

  2. #2
    Newbie
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    is there not a resistor that you twist to up the voltage, is this with the car runniing or not?

  3. #3
    Newbie maddop's Avatar
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    It is when the car ignition is on or off.
    it doesnt matter.

    There is no resistor. Just the jumper to set the startup and shutdown voltage.
    BMW E46 (year 2000)
    CARPC installed and working!!

  4. #4
    Neither darque nor pervert DarquePervert's Avatar
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    Get a multimeter and measure the voltage on your +12v line.
    You also didn't mention what you used to wire to the ACC line. Did you wire the ACC line to an IGN-controlled 12v source?
    Have you looked in the FAQ yet?
    How about the Wiki?



    Under normal circumstances, a signature would go here.

  5. #5
    Maximum Bitrate binary.h4x's Avatar
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    I think one flashing green light is just "standby", ie: no trigger from the ACC line. As mentioned before, use a multimeter to check your input voltages.
    2007 Honda Fit Sport 1.5L SOHC-VTEC

  6. #6
    Newbie maddop's Avatar
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    Hi,

    Late reply but i've just got back from holiday.
    I've finally checked the input voltage and its 12.35V direct from battery.

    I am still having the same problems. Any more ideas?

    Thanks in advance,
    Paul.
    BMW E46 (year 2000)
    CARPC installed and working!!

  7. #7
    Newbie
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    As binary said, one flashing should be just the standby mode for the PSU...
    Does the unit start when you turn ACC on?

  8. #8
    Newbie maddop's Avatar
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    I dont get any response other than the green flashing light.
    No fans on my mainboard turn or any other activity.

    Thanks,
    Paul.
    BMW E46 (year 2000)
    CARPC installed and working!!

  9. #9
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    Did you check if you inverted +12 Bat and ACC?

    I had a similar problem, and it was related to the fact I had inverted the two (on my 150W which should be about the same...).
    I would also check the power button cable from the opus unit to the mainboard, maybe try it with a regular button and work from there.

  10. #10
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    Check to make sure the ACC on the Opus is connected to a switched ignition wire and not a constant 12 volts. You need to have the Opus 12v constant and ground connected for about 5 or 10 seconds before putting 12 volts to the ACC (turning on the ignition), or it will not power up.

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