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    M17xR2 USB Charging when powered off

    Discussion in 'Alienware 17 and M17x' started by SpideRMaN-17, Oct 10, 2010.

  1. SpideRMaN-17

    SpideRMaN-17 Notebook Consultant

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    Hi All,

    I enabled option to charge USB devices when laptop is off in BIOS (Ver. A9) but laptop still does not output 5v to charge when powered off or in standby (with mains charger plugged in or on battery)

    is this normal ?
     
    SpideRMaN-17, Oct 10, 2010
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  2. ghostdunks

    ghostdunks Notebook Guru

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    I just got my m17x so I'm not sure on this, but I believe that charging while laptop is off only works on one port, the one nearest to you on the left side. And I think in the instruction manual, I think it even says, it doesn't work for all devices.
     
    ghostdunks, Oct 10, 2010
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  3. jcaulley

    jcaulley Notebook Consultant

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    The power off charging only works on the USB/eSATA port. It's the only one that gets power.
     
    jcaulley, Oct 10, 2010
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  4. ghostdunks

    ghostdunks Notebook Guru

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    thats the port! I knew there was something fancy schmancy about that port :)
     
    ghostdunks, Oct 10, 2010
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  5. SpideRMaN-17

    SpideRMaN-17 Notebook Consultant

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    Were is the USB/eSATA port ?

    I need to charge a mobile phone, standard 5V - 500mAh output

    Thanks
     
    SpideRMaN-17, Oct 11, 2010
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  6. ghostdunks

    ghostdunks Notebook Guru

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    Just like I said, its the USB port closest to you on the left side of the laptop, the one next to the firewire(1394) port.
     
    ghostdunks, Oct 11, 2010
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  7. devoidx

    devoidx Notebook Consultant

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    So tempting to say RTFM ... but I won't ... :D

    http://supportapj.dell.com/support/edocs/systems/Alw_M17xR2/en/mm/mm_en.pdf

    Page 15

    Cheers,

    M17x-R2 Black | i7-840QM | 8GB-1333MHz DDR3 RAM | ATI Mobility Radeon HD5870 CrossFireX | 17" 1920x1200 RGB LED | 1TB Raid0 7.200rpm HDD | Bluetooth 370 | Intel WiFi 6300 | Windows 7 Ultimate
     
    devoidx, Oct 11, 2010
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  8. SpideRMaN-17

    SpideRMaN-17 Notebook Consultant

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    Thanks,

    so mine is not working :( . . Does not charge when sysyem is off or in standby (sleep or hybernation)
     
    SpideRMaN-17, Oct 11, 2010
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  9. devoidx

    devoidx Notebook Consultant

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    Make sure it's enabled in the BIOS.

    Edit: Sorry. Re-read your post. You did enable in BIOS. Sorry. ;)

    Edit2: The manual does say ... "NOTE: Certain USB devices may not charge when the computer is turned off or in standby mode. In such cases turn on the computer to charge the device."

    What device are you attempting to charge? I've successfully charged my iPhone 3GS via this method.


    Cheers,

    M17x-R2 Black | i7-840QM | 8GB-1333MHz DDR3 RAM | ATI Mobility Radeon HD5870 CrossFireX | 17" 1920x1200 RGB LED | 1TB Raid0 7.200rpm HDD | Bluetooth 370 | Intel WiFi 6300 | Windows 7 Ultimate
     
    devoidx, Oct 11, 2010
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  10. SpideRMaN-17

    SpideRMaN-17 Notebook Consultant

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    Thanks for your reply :)

    I am trying to charge an HTC Desire . . I measured 5V out of the usb/esata when laptop is powered off so I think it's not supplying enough mAH

    (it charges fine when laptop is powered on . . (I think I have to live with it)

    Edit: if the mobile is with at least 5% charge it charges fine . . if 0% (which is reality it's not 0% cos of the hardware protection not to completly drain a lipo battery) it doesn't charge, so the mobile needs more then the normal 500mAH that a usb can supply.
     
    SpideRMaN-17, Oct 11, 2010
    #10