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Thread: 320 Opus High Pitch Wine

  1. #1
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    320 Opus High Pitch Wine

    Hello all. I have been attempting to get my puter up and running and finally had the chance to get it running on the Opus power instead of being spoiled with 120/12v.

    I have a high pitch whine when I shut the computer off. The power supply sounds like its dropping a high pitch bomb to the ground. Does this twice and then there is just a generally faint whine when everything is shut down. Is this normal??

    The way its hooked up is per the instructions. I am not using any shutdown delays or accessory position features. Just using the Opus as a straight power supply and the power switch on the pc controls the on/off.

    Any thoughts would be helpful. I am willing to chase it down if its something thats going to damage the PSU which I don't want to do cuz its crazy expensive. But if others are experiencing this tiny bit of noise then I can live with it.

    Anyone? Does anyone with this power supply have any thoughts? I really don't want to have to return this supply for an exchange.

    I noticed this evening when I diconnected the RED wire from the 12v power source it didn't do the wine thing, but then of course its not wired per the instructions and will not turn the PC on. Plus I tried the RED wire to acc position instead of constant 12v and it made no difference. Still getting the whine and led flashing twice every 5 seconds.
    Computer: Rebuild Again! Computer 2 - ITX, FAIL.....back to a real computer.
    Install: In, out, in, out, in, then out, then back in again, now out, back in, out, really getting tired of this.

  2. #2
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    Bump.
    Computer: Rebuild Again! Computer 2 - ITX, FAIL.....back to a real computer.
    Install: In, out, in, out, in, then out, then back in again, now out, back in, out, really getting tired of this.

  3. #3
    FLAC WuNgUn's Avatar
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    Sep 2007
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    1,351
    2-flashes means a power up sequence failed, according to the manual...
    Is this noise coming from the PSU itself, or thru the speakers?
    Does it make this noise as soon as the red wire has no power, (i.e. switch the car off) and the PC is still on, or after everything is off?

    I'd email OPUS personally...
    At least they answer their emails.

  4. #4
    Constant Bitrate
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    Norton, MA
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    You say you have no startup/shutdown timer things setup, do you perchance have the jumper on the voltage setting spot?

    I have an OPUS 320w in my truck and when I first went to install it I spent hours trying to get it to boot up, ended up removing ALL jumpers and using a hacked up front panel switches. Sounds similar to what you have, this was the only way to get it to boot.

    The only whine I had was from running a 12v constant lead from the PSU to my LCD along the same path as my RCA cables. With that moved to the other side I have had no whine at all, coming from my speakers. Are any of the wires feeding the OPUS near RCA's or any power output from the OPUS near any RCA's? I would also double check your grounds.
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  5. #5
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    update

    Thanks for the thoughts. I searched the forum and tripped across another owner of this supply who also talked with Opus and they wanted us to send out motherboards with the psu....that's not going to happen. I emailed and then talked with a tech at Opus and they have no solution for the two blinks of the status light, but they said they could fix the psu whining. I really could care less if the stupid thing blinks, I know its hooked up right, and operates the power up/down sequences, so if they can fix the whine then I can live with the dummy light blinking.

    To answer some questions:
    Power Jumper is on 12v.
    No the RCA are not near the power cables, I wouldn't hook any "stereo" or orther such device up that way....this is not my first install.
    Grounds are solid. Ran volt meter and ohm test, they are solid.
    The whine is actually comming from the psu itself after everything is off. When everything is off . If I disconnect the red wire, even though the instructions say its supposed to be hooked in with the yellows or hooked to switched, the noise actually stops.

    I wonder if when I first hooked up the psu if it wasn't hooked up right at first and the error stat is stuck in the memoryof the psu. Can that be cleared out?? or is it just a dummy light that blinks when startup fails and cant be reset?

    Guess for now it doesn't matter I am sending it back to Opus minus the mobo and they can deal with it.

    I still welcome any thoughts on this.

    On a happier note I did get the puter in the truck and running for an all too brief 2 weeks of testing. I cant wait till spring to finish the install. I hope to post pics and such of the progress soon.
    Computer: Rebuild Again! Computer 2 - ITX, FAIL.....back to a real computer.
    Install: In, out, in, out, in, then out, then back in again, now out, back in, out, really getting tired of this.

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