New 15" Powerbook 1.67GHz not supporting DFS (speed stepping)?

Discussion in 'Macintosh Computers' started by Sooper, Oct 22, 2005.

  1. macrumors newbie

    Joined:
    Jun 3, 2005
    #1
    In the energy control panel on my brand new 15" powerbook HD, there is not an option for "Processor Performance" like on my 12" 1.33 iBook.

    Perhaps the new 15" Powerbook has a 7447, and not a 7447A G4? Seems absurd.

    I also tried to load FastAndSlow, and it stated my machine did not support DFS (Dynamic Frequency Shifting)!

    Is there anyway I can tell for sure, short of opening up the case. I tried to load CPU Director, but it complained that 'Kext' could not be loaded.

    Thanks.
     
  2. macrumors G3

    Joined:
    Jul 23, 2002
    Location:
    Sol III - Terra
    #2
    Answered in this thread earlier today.
     
  3. thread starter macrumors newbie

    Joined:
    Jun 3, 2005
    #3
    CHUD tools is reporting 7447A; so DFS is definately supported in HW and it looks like the user option has been removed in favor of something entirely automatic.

    The battery life on my new 15" PB is far below that of my 12" 1.33 iBook; that's what led me to the conspiracy theory that the PBs went to 7447 chips.

    I was also hoping the chips were actually dual core, and I just had to put in the correct unlocking code to activate the other core. Up, Up, Down, Down, Left, Right, Left, Right, B, A, B, A, Start was not the correct sequence... ;)
     
  4. macrumors 6502a

    chucknorris

    Joined:
    Jun 28, 2005
    Location:
    Moscow, ID (No Kremlin here!)
    #4
    I don't think you put the code in quickly enough! Please try again. :p
     
  5. macrumors 68000

    nospleen

    Joined:
    Dec 8, 2002
    Location:
    Texas
    #5
    At least now you have unlimited lives in Contra.
    ;)
     
  6. macrumors regular

    fklehman

    Joined:
    Sep 19, 2005
    Location:
    Newark, DE
    #6
    Yarghhh. I wonder what the implications for gaming are. So if I play WoW for 15 minutes and the computer heats up, the processor is going to slit its own throat as per DFS and I have no way to stop it? Anyone know a way to at least monitor what is happening with DFS, and see what factors cut the speed in half (a certain temperature, etc.)?
     
  7. macrumors 68020

    Joined:
    Mar 30, 2004
    #7
    So the DFS is basically behind-the-scenes? Ridiculous.

    First the iBooks get more RAM than the 12" PowerBook, and now this.
     
  8. macrumors regular

    Punani

    Joined:
    Jun 16, 2004
    Location:
    Los Angeles
    #8
    Oops (again).
     

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