Mac Pro 3ghz always 1 prosessor working at 100% speed

Hello,
I have a new Mac Pro 3ghz and 2Gb ram and osx 10.4.8
I notist that always 1 prosessor is working at 100% speed.
It is coninualy switching from processor to processor, but alway 1 is working at 100% speed.
I dont think this is normal, and i think it hase to do whit osx 10.4.8 becouse a havend notist it whit 10.4.7
I read the info of my processors from the program activitymonitor, and always 1 processor is fuly red.
A other program MenuMeters is also telling me it is working at 100%
Any thougts are welcome

The problem was even bigger i just notist.
I couldnt reboot or shut down the computer.
It hanget at the screen when only the background is there and the mouse arow.
The mous was stil working, but noting else any more.
I had to manualy sjut down the computer by pressing the power button at the front.
After booting up, the prosessors are now runing normaly.
HAve no idea what was the problem

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      DIMM Riser B/DIMM 2
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      Mitsumi Electric Apple Optical USB Mouse
      Apple, Inc Apple Keyboard
      Apple Inc. Bluetooth USB Host Controller
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      [désengagé] com.adobe.CS5ServiceManager.plist Aide
      [désengagé] com.extensis.FMCore.plist Aide
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      iTunesHelper Application (/Applications/iTunes.app/Contents/MacOS/iTunesHelper.app)
      Dropbox Application (/Applications/Dropbox.app)
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    I am creating short videos of ps-3 gameplays. For recording I use eye-tv and my mac is connected through a HD-Haupauge with my Playstation. When transferring the recording-file from eye-tv to i-movie and getting started to work on the video, my mac runs hot. I have to underpin the mac, so that there is enough space for cooling, which doesn't help that much.
    What could be the reason? I bought themac last year in summer. I am not sure about my operation systems number.
    Thanks for any reply and good advice i hope to get.
    Kind regards

    You posted your question in the "Intel iMac" Forum.  In order to get a relevant answer you should repost it in the "Mac Pro" Forum

  • MAC PRO Internal USB ports stopped working

    Hello, I have a mac pro 8 core with an USB internal ports problem, the 2 in front are not working anymore, and from the 3 in the back only the middle one is working.
    I tried to pull all the power out for a whole night, resetting the pram and nvram but nothing helps.
    When for example I put in a keyboard in one of the ports that is not working and when I power up the machine and I press the ALT key I get the choice of startup preferences, once I select one, and the system boots up the ports stops working, so before the OS loads the usb ports are working !!!
    What to do ??

    This is a hardware failure. While USB ports on the whole are just not designed very well, leading to their failures being pretty common, your issue sounds a bit more like the USB controller chip is failing.
    In any case, the answer is to take it to a repair shop. If they're smart about it, they'll replace the logic board and see if that also fixes the front ports. If not, they'll replace the front I/O panel as well.

  • Mac pro left shift button not working...

    Hello my mac pro left shift button is not working what would be the problem, is it the major or minor problem plz help me...

    Mac Pros are desktop, MacBook Pros are notebooks.    There are usually two shift keys.  Have you tried both?
    Have you made sure the Caps Lock key is not enabled? Have you made sure the Num Lock key is not enabled (clicking either will disable them if they are enabled).   Speech recognition can make a key give an alternative command if you set that up, try disabling speech recognition to see if that's the problem, or one of the Universal Access settings can do the same.  Go to Apple menu  -> System Preferences to manage those.

  • Yosemite update to Mac pro keyboard and mouse not working anymore

    Updated to Yosemite on my Mac pro, worked perfect for about 2 weeks then my keyboard and mouse stopped responding, both keyboard and mouse were replaced and still won't work. The computer turns on but won't respond to the USB mouse &Keyboard. Help

    I have seen 2 out of the 6 mac pro's in my office do this. I am about to go to the apple store to show them.
    When the computer is doing this I have tried using every wired apple keyboard in my office and none of them work. If I try the same keyboards on a windows computer or my macbook they work fine. If I use any non apple usb keyboard they work fine. My problem is if I turn the computer off for a few hours the usb apple keyboard works again so when the computer has been off all night and I pack it up to take it to applecare it is working by the time I get into the store.
    I think there is a small flaw in usb port on the mac pro or the apple keyboard that when heated up from use stops the pins from contacting completely. It might be a manufacturing defect and it might be an unintended problem caused by how apple slightly modifies their USB ports.

  • Hi Forum, can u please help? iRecently bought a mac pro & my garageband 11 was working fine but now it's showing a question mark in the dock but it won't open. I think it may have been accidentally trashed. I've searched the trash & spotlighted. What now?

    Hi Forum, can u please help? iRecently bought a macbook pro and garageband 11 was working fine but now it's showing a question mark in the dock and it won't open. I think it may have been accidentally trashed. I've searched the trash and spotlighted but don't know what to do next. Any ideas? Thanks.

    How  did you install GarageBand on your Mac? Did it come preinstalled with the other iLife applications?
    If your MacOS supports the AppStore, you should be able to redownload GarageBand from the AppStore, see this support Article: OS X: About OS X Recovery on how to download again:
    Double-click the App Store icon in the dock.
    Enter your Apple ID and password.
    Click Purchases.
    If you haven't previously accepted your bundled iLife applications within the Mac App Store, you should see your iLife applications appear in the Accept portion of the screen. Click Accept.
    You may be asked for your Apple ID and password once again. Your iLife applications now move to the Purchased section. These applications are part of the software that came with your Lion based computer. Your account will not be charged for them. Click Install to complete installation of your applications.
    Regards
    Léonie

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