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Thread: opus 150w no power

  1. #1
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    Angry opus 150w no power

    I bought an opus 150w power supply about 12 months ago and I am just in the process of putting it in my car. i am driving over to the alps from the uk next week so thought it was about time i fitted it to the car, so I would have sat nav while driving there. Everything was working fine I was using the pc but had the liliput powered straight to the battery. After reading the forums I found out this was a bad idea as the battery could output 14v and it could fry my liliput. So today I want to maplin and bought a male molex connector to connect the liliput to the computer. I fitted two wires to the molex connector one to the yellow and one to the back. Each wite is about 3 meters long to reach from my boot the the front of the car. I plugged the connector into the female molex connector and turned the engine on. The liliput power come on and and the computer started to boot. I noticed there was interferace with my radio so umplugged the power connector from the liliput but the interferance was still there. I then plugged the power back into the liliput and found there was no power. I turned the engine off and on but still no power to the liliput. I then went to the boot of my car and the computer was not booting up. I have now removed the computer from the car and using a battery indoors (this is the battery I was using for testing). When I connect the opus power supply to the battery I get nothing. The computer does not boot and there are no lights. I have disconnected the motherboard (epial MII) and reconnected the power and I still have no lights on the opus. I tried replacing the fuse but still nothing. Have you got any ideas what the problem can be or am I going to need to get a new opus.

    Thanks in advance for you help.

  2. #2
    See me in my wet t-shirt. stevieg's Avatar
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    You might be out of warranty but I would email Opus and ask them straight away. Was the lilliput fused between lilliput + Opus?
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  3. #3
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    Nope did not put a fuse between the opus and the liliput. I did not think this was required as the opus already has a fuse built in. What size fuse should be fitted.

  4. #4
    Constant Bitrate
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    Internal opus fuse is 20amp, I believe. You should inline fuse to the lili with like 2 1/2 or 3 amp fuse.

  5. #5
    See me in my wet t-shirt. stevieg's Avatar
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    Quote Originally Posted by TheJack
    Internal opus fuse is 20amp, I believe. You should inline fuse to the lili with like 2 1/2 or 3 amp fuse.
    Found out earlier max draw is 5A for Lilliput - though I thoguht it was 2A before that!
    Ford Focus MP3 : www.stevieg.org/carpc Blog Updated 29 January 2009!
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  6. #6
    Variable Bitrate
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    I dont have a fuse between my Opus 150 and my lilli. Haven't had any problems (though it's only been installed for about a month).

    When you were first seeing the interference and unplugged / replugged the molex to the lilli, was the opus powered up and running?

  7. #7
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    When I get it back up and running I will put a 5a inline fuse. I guess I just have to put the fuse on the +12. Which end does the fuse need to go near the opus or near my screen or both.

    I removed the power from the screen I did not disconnect the molex. I then reconnected the power to the screen with the computer and engine still on and the screen had no power.

    I have sent an email to opus and they have said do not worry as power supplies have a 3 year warrenty. I can just send it back to them for repair. They did ask if there where any flashing lights with opus just conected to the battery. I replied that there where none. I am now awaiting response as to what to do next.

    Thanks for all your replies

  8. #8
    Constant Bitrate KaiTech's Avatar
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    Quote Originally Posted by rainman
    I bought an opus 150w power supply about 12 months ago and I am just in the process of putting it in my car. i am driving over to the alps from the uk next week so thought it was about time i fitted it to the car, so I would have sat nav while driving there. Everything was working fine I was using the pc but had the liliput powered straight to the battery. After reading the forums I found out this was a bad idea as the battery could output 14v and it could fry my liliput. So today I want to maplin and bought a male molex connector to connect the liliput to the computer. I fitted two wires to the molex connector one to the yellow and one to the back. Each wite is about 3 meters long to reach from my boot the the front of the car. I plugged the connector into the female molex connector and turned the engine on. The liliput power come on and and the computer started to boot. I noticed there was interferace with my radio so umplugged the power connector from the liliput but the interferance was still there. I then plugged the power back into the liliput and found there was no power. I turned the engine off and on but still no power to the liliput. I then went to the boot of my car and the computer was not booting up. I have now removed the computer from the car and using a battery indoors (this is the battery I was using for testing). When I connect the opus power supply to the battery I get nothing. The computer does not boot and there are no lights. I have disconnected the motherboard (epial MII) and reconnected the power and I still have no lights on the opus. I tried replacing the fuse but still nothing. Have you got any ideas what the problem can be or am I going to need to get a new opus.

    Thanks in advance for you help.
    Thats a longass wire. What AWG did you use? I would suggest getting something like the POL Opus sells insted of jeopardizing your 150W.
    I'll spout simplistic opinions for hours on end.
    Ridicule anyone who disagrees with me,
    and generally foster divisiveness,
    cynicism and lower level of public dialog!

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