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Thread: CPU running warm when PC is idle

  1. #1
    Join Date
    Apr 2012
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    24

    CPU running warm when PC is idle

    Ubuntu 12.04, AMD Phenom II X4 955 Processor × 4.

    I've begun noticing over the past few days that when I leave my PC for a while, the CPU fan is running full blast when I come back. I installed Psensor to check what was going on.

    When I'm using the PC for light work such as browsing, the CPU runs at around 37-40C. But when I leave it for a while and come back (around an hour or so), I'm getting pretty consistent temperatures of around 46C. I have no programs running on it, and the screen is dark. Once I start using it again, the temp goes back down to between 37-40C

    Now, I know 46C isn't that high, but I just find it strange that it runs cooler when I'm using it, even for light work, than when it's sitting idle.

  2. #2
    Join Date
    May 2011
    Beans
    24

    Re: CPU running warm when PC is idle

    the same thing happens to me.
    I even posted the same thing a few weeks ago, but I didn't get any responses.

  3. #3
    Join Date
    Apr 2012
    Beans
    24

    Re: CPU running warm when PC is idle

    Quote Originally Posted by errrn View Post
    the same thing happens to me.
    I even posted the same thing a few weeks ago, but I didn't get any responses.
    Did you report it in launchpad? If not, I think I'll pop by and submit a bug report. If you did, link me.

    EDIT: Reported. Head over and add your info https://bugs.launchpad.net/ubuntu/+s...x/+bug/1033487
    Last edited by KaizerLinux; August 6th, 2012 at 12:38 PM.

  4. #4
    Join Date
    Apr 2012
    Beans
    24

    Re: CPU running warm when PC is idle

    Bump.

    It seems that the CPU is running at around 30-40% capacity when the monitor is off, so no wonder it heats up. No idea what's causing it though. Could it be Compiz? And is there a way to log process CPU usage?

  5. #5
    Join Date
    Oct 2010
    Location
    Chilliwack B.C.
    Beans
    53
    Distro
    Ubuntu 12.10 Quantal Quetzal

    Re: CPU running warm when PC is idle

    Hows your memory usage as well, this might be a mem leak.
    Shuttle AB48PN, WD Caviar Blue 320Gb, Pentium 4 OC to 3GHz, 2Gb corsair DDR333, Sapphire Radeon HD 4650, Acer 23" LCD monitor, Sparkle 400 Watt PSU.

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