Unusually high fan revving for a Dual 1.8 GHz PowerPC G5

Discussion in 'PowerPC Macs' started by shitzkrieg, Dec 21, 2006.

  1. shitzkrieg macrumors newbie

    Feb 2, 2006
    I have a Dual 1.8 GHz PowerPC G5 with 2.5 GB of RAM. My fan starts revving really loud when I am using multiple apps (Adobe CS2, Firefox, iTunes) and while watching a video tutorial or AVI movie (both saved on my desktop). It also happens when I am just watching a AVI movie with no other apps open.

    I just added one GB of RAM yesterday thinking maybe this will solve the problem since I am running multiple apps. This did not resolve it.

    So I searched the messageboard for threads on fan issues similar to mine. I read it may be caused by the tempature in my room. I keep the tower on my floor on top of 2 pieces of wood about a 1/2 inch thick. I live in a small brick studio apartment so the tempature is usaully between 60 to 70 degrees.

    I looked into smcfancontrol but it looks like its for laptops only.

    I also do not have a utilities program for my computer yet. I was wondering what was the best program out there to clean up/tune-up my hard drive so its running at maxium speed.

    Has anyone had experince with this issue and have any answers? I am concerned this may be very detrimental to my computer in the long run.

    Thanks in advance....
  2. thebeephaha macrumors 6502


    Sep 4, 2006
    Seattle WA
    My school's G5's would go nuts on the fans if I just opened a program. Spin up WAY loud then go quiet. Its freakin annoying.
  3. Dreadnought macrumors 68020


    Jul 22, 2002
    Almere, The Netherlands
    Put your CPU processors (in the energy control panel) on high. In this way your fans don't rev up everytime you open an app. But they will make a bit more noise because they spin a bit faster all of the times.
  4. jmoss macrumors member

    Nov 4, 2006
    Mine too

    Mine did this every now and again. Eventually, I came back from dinner one evening and the fans were going crazy and obviously had been for a while :confused: Then I had starting issues and lock ups. Went back under Applecare and was traced to faulty RAM. You may want to start there ....

    Hope you get it sorted.


    PS New Mac pro has been used loads in the last month or so and has never had fans on.
  5. Dreadnought macrumors 68020


    Jul 22, 2002
    Almere, The Netherlands
    I had that problem to. Severe kernal crashes for a while, couldn't reproduce them. Now everything is OK, didn't had one since that period. Also didn't replace my RAM.

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