Computer running hot in target disk mode

Discussion in 'MacBook Pro' started by alphaod, Sep 1, 2012.

  1. alphaod macrumors Core

    alphaod

    Joined:
    Feb 9, 2008
    Location:
    NYC
    #1
    I never really used target disk extensively, but now with Thunderbolt I've been using it quite a bit. It's a lot faster to use TDM to transfer, say 300GB at a time, between two computers than through gigabit or any other medium.

    Right now the fan is spinning up and the heat produced is like I'm encoding videos. Power draw is also very high. This happens every time.

    Is this normal?
     
  2. Intell macrumors P6

    Intell

    Joined:
    Jan 24, 2010
    Location:
    Inside
    #2
    That's normal when using Thunderbolt for Target Disk Mode. The CPU needs to be active to work between the SATA chip and the Thunderbolt chip. Unlike FireWire Target Disk Mode when the FireWire chip handled all of the data and the CPU could cycle down.
     
  3. Dark Void macrumors 68030

    Dark Void

    Joined:
    Jun 1, 2011
    Location:
    Cimmerian End
    #3
    Data Transfer can be quite intensive, I would say that it is normal.
     
  4. alphaod thread starter macrumors Core

    alphaod

    Joined:
    Feb 9, 2008
    Location:
    NYC
    #4
    I guess Thunderbolt has the same limitations as USB; requiring host processing.
     

Share This Page