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Thread: Cut USB power

  1. #1
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    Cut USB power

    I have a EPIA MII10k and I want the USB power to shut off. I don't use my car much and it keeps draining my battery. Is there any way to do that? I still want my Opus to put my carputer in hibernate and not just cut the power.

  2. #2
    Constant Bitrate CornToeGoblin's Avatar
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    you could cut the wire that goes from the battery
    2008 Civic... Sound system... then carputer install...
    WORK IN PROGRESS

    If you look at my avatar closely, you can see a chick with two big knockers....

  3. #3
    FLAC arebelspy's Avatar
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    Depends on how you're powering the thing. Most standard ways (Opus, CarPC EZ, etc) have that feature built in, but if you use an inverter you can use a startup/shutdown controller (DSSC is the recommended one) to cut the power to your inverter (thusly all the connected perifs like USB stuff) and send the computer into hibernate.

    -arebelspy

  4. #4
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    I have the Opus set up to put it in hibernate, but after it goes into hibernate I want the power cut off. The way I understand it is if the Opus is set to not give standby power, it will just cut the power to the system meaning no hibernation and potential of HD corruption. Does it wait to cut power after it initiates the shutdown? Or is there a BIOS option or something I can use to disable the standby power to USB devices when shutdown?

  5. #5
    Variable Bitrate
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    There is a mod you can do to the Opus so that it will cut the power to the USB peripherals. If you are handy you can do it yourself. If not, you can always send it back to Opus to have them do it for you. Let me find the link...

    Edit: http://www.fmev.com/opusmod3/opusmod3.html (not my site, perform at your own risk)
    2005 Black Chevy Impala
    Current Status: Installed in Vehicle/Testing 75%

  6. #6
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    sweet, that's what I'm looking for. does it work on the 90W? That's what I have. Thanx for the help.

  7. #7
    Variable Bitrate
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    No clue...but some others would be able to chime in
    2005 Black Chevy Impala
    Current Status: Installed in Vehicle/Testing 75%

  8. #8
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    hibenate doesn't need power at all and no, normal DSSC (OPUS) do not necessarily cut ALL power. usb devices will still trickle power unless you do the relay mod

  9. #9
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    There is a 10 page long thread on this site that discusses how to cut USB standby power on an OPUS 150.

  10. #10
    Maximum Bitrate BoraXP's Avatar
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    The 90w opus has a jumper on it that disables the standby mode

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