Coffee cup warmer on the powerbooks

Discussion in 'Macintosh Computers' started by rfenik, Oct 28, 2003.

  1. rfenik macrumors regular

    rfenik

    Joined:
    Oct 28, 2003
    #1
    My powerbook gets so hot in the corner, and there is that little flat space that would be perfect for a coffee cup warmer. Just a little circular indentation so the cup doesn't slide off. That would be so cool.

    Has anyone ever tried using thier powerbook to cook eggs?

    -ryan
     
  2. FightTheFuture macrumors 6502a

    FightTheFuture

    Joined:
    Oct 19, 2003
    Location:
    that town east of ann arbor
    #2
    practical use

    during the winter i use it to defrost my windshield. portable and titanium, works great and very durable. afterwords, i start a render farm on my passenger seat for my long drive to work.
     
  3. Giaguara macrumors 6502a

    Joined:
    Nov 22, 2002
    #3
    which corner gets hot?

    it's freezing here, but my powerbook does not get hot enough to defrost my fingers.
     
  4. evil macrumors 6502

    Joined:
    May 2, 2003
    Location:
    chicago ex-toronto
    #4
    ive never had my powerbook get hot until i started playing sim city 4 on it.

    for real..i now know what to grab after comign in from the cold canadian winter with cold walnuts!
     
  5. evil macrumors 6502

    Joined:
    May 2, 2003
    Location:
    chicago ex-toronto
    #5
    ive never had my powerbook get hot until i started playing sim city 4 on it.

    for real..i now know what to grab after comign in from the cold canadian winter with cold walnuts!
     
  6. rfenik thread starter macrumors regular

    rfenik

    Joined:
    Oct 28, 2003
    #6
    On my 12" alum powerbook the front left side gets hot. The fan kicks on after a while, so it never gets like the titanium ones, but hotter than other *louder* windows laptops. Not a problem, it actually keeps me quite warm.
     
  7. marcus80 macrumors newbie

    Joined:
    Oct 14, 2003
    #7
    It has been found, that the removal of a simple PMU (Power Management
    Unit) System file, that Apple portables seem to run a little cooler.
    So, how do you remove, and what file is it?

    The file can be found by selecting Go in your menu bar, selecting Go to
    Folder, and typing in var/db/SystemPreference. That will bring you to
    the folder, but you will not be able to remove the file
    com.apple.PowerManagement.xml, simply because you do not have
    permission to do so.

    Open up a session in Terminal. From Terminal, you will be able to
    remove the file by typing the following:

    sudo rm
    /private/var/db/SystemConfiguration/com.apple.PowerManagement.xml

    Hit enter. This will prompt your machine to ask for your ROOT password.
    Entering the password will then enable Super User do, sudo, to remove
    the folder.

    Shut the machine down. While the machine is turned off, perform a PMU
    reset, Control, Option, Shift and Power. Wait five or more seconds,
    restart the machine. The PMU reset may force you to reset the time and
    date on your machine.

    Secondarily, with a second mac and Tinker Tool, or other
    invisible/hidden folder apps, you could mount the drive of your
    portable via FireWire Target Disk mode, and remove the file without
    running into permission issues.

    Or finally, Boot to single user mode and rename the file. To boot into
    single user mode, hold down the Apple key and 's' at Boot. From there,
    type the following commands:

    /sbin/mount -uw /

    cd /private/var/db/SystemConfiguration/

    mv com.apple.PowerManagement.xml com.apple.PowerManagement.xml.backup

    shutdown -h now

    Before rebooting, the PMU reset is applied by holding down Control,
    Option, Shift and Power. Wait five or more seconds, restart the
    machine, and use. In this last part, we have not removed the file, but
    nearly renamed it.
     
  8. beefcake macrumors 6502

    Joined:
    Jun 22, 2003
    Location:
    Baltimore
    #8
    Are there any downsides to removing this file?
     

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