Magic Mouse Lag - Bluetooth/USB 3.0 issue?

Discussion in 'Mac mini' started by oneinten, Apr 13, 2013.

  1. oneinten macrumors member

    Mar 16, 2013

    I recently installed my new SSD into a USB 3.0 enclosure and installed ML from scratch and since this I've been experiencing some lag issues with my magic mouse..

    Has anyone experienced this before? Could this be due to the use of a USB 3.0 device as previously reported?

    I can see absolutely no reason why the new OS X install should cause anything to SLOW as it's a Samsung 840 SSD in a USB 3.0 enclosure although I booted up the new install using a USB 2.0 enclosure for a few hours beofre purchasing this USB 3.0 enclosure and experience no such problems.

    Is this a typical USB 3.0/Bluetooth issue?
  2. elolaugesen macrumors regular

    Aug 1, 2008
    The usb issue is not just mac mini. It is a documented Intel problem. Research Papers have been written discussing the USB3 interference problem? I know someone with a pc who have had a similar problem. Appeared to Disappear when they moved things around.
  3. paulrbeers macrumors 68040

    Dec 17, 2009
  4. oneinten thread starter macrumors member

    Mar 16, 2013
    I saw this but I'm not willing to void the warranty to rectify such a problem if it is being caused by this.

    Is there anything else I can try? the lag gets much better (less lag) the closer the mouse gets to the mac mini..
  5. APlotdevice macrumors 68040


    Sep 3, 2011
    Try placing the enclosure as far away for the computer and mouse as possible.
  6. vadimr macrumors newbie

    Apr 13, 2013
    I just don't understand the logic here, how would paving a sticker void your warranty, that's not the case for sure.
  7. APlotdevice macrumors 68040


    Sep 3, 2011
    Well you do have to disassemble the Mac Mini in order to install the shield over the BT chip.
  8. vadimr macrumors newbie

    Apr 13, 2013
    That does NOT void any warranty.
  9. vadimr, Apr 14, 2013
    Last edited: Apr 15, 2013

    vadimr macrumors newbie

    Apr 13, 2013
  10. ActionableMango macrumors G3


    Sep 21, 2010
    USB 3.0 interferes with 2.4GHz band, which happens to affect a lot of things, including wi-fi and bluetooth. USB 3.0 should never have been made a standard as it is.

    Move the peripheral further away from the Mini.

    Move the Mini closer to your mousing surface.

    Switch to a mouse that doesn't use bluetooth.

    Stop using the poorly tested USB 3.0 standard by switching to external peripherals that use Firewire or Thunderbolt.

    Shield the external peripherals as shown on page 14 of the Intel whitepaper.

    Shield the USB 3.0 connector on the Mini, as shown on pages 15-17 of the white paper.

    As already suggested, shield the bluetooth receiver itself.

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