Dual boot, one OS getting hotter than the other


  1. amoretam
    Posts : 362
    Windows 7 x64bit Home Premium
       New #1

    Dual boot, one OS getting hotter than the other


    hi there, I hope this is the right session for this...
    I am having a very curious issue here...

    Motherboard is Z68X UD3H B3 rev 1.3

    CPU: i5 2500K (sandy bridge)

    1 Crucial 128 GB m4 2.5-Inch Solid State Drive SATA 6Gb/s (Lion 10.7.4 Hackingtosh)

    8GB G.Skill DDR3 PC3-12800 1600MHz Ripjaw Series (9-9-9-24) Dual Channel


    Lion is installed on the ssd drive and Windows is installed on a regular sata drive (WD green drive or something).

    On the Lion side I get excellent temps reading even when I hit the cpu real hard for very long time.. (about 50 and 55 Celcius is the maximum I have gotten).. I am very happy with how the temps are behaving on my Lion side of things..
    Here I am reading my temps with Istat.

    But when I go to Windows 7 (Using Protools software) and I push the cpu to about 40 or 45% use (reading in task manager), I get a reading of about 70 - 75% and even 80 celcius (with HW monitor)..
    The alarm in the motherboard is set to turn on when temps get to 70C and that's exactly what it does.. (That way I know HW monitor is reading the right temps)

    Why is this happening, how come my cpu gets hotter on the Windows side of the fence??

    Maybe there a setting in the Bios ??

    I am using stock fan and connected via hdmi cable to my monitor

    Thanks a lot people on this forum I hope I can get some help
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  3. amoretam
    Posts : 362
    Windows 7 x64bit Home Premium
    Thread Starter
       New #2

    replys from other forums:

    some people believe that something is preventing my fan to speed up when cpu is getting hotter!

    what could this be?

    Thanks
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