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    8*C difference is core temps

    Discussion in 'Gaming (Software and Graphics Cards)' started by roosta, Jan 8, 2009.

  1. roosta

    roosta Notebook Evangelist

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    ive just been playing crysis (which crashed out for some unknown reason) and i noticed my core temp maxes were 8*C apart. ive seen them 4*C to 6*C apart before, but 8*C difference is a fair amount innit?

    while im here, does anyone know where the top censor listed is located? could it be RAM, or PSU maybe? cant find any reference to it through google, nor on this site.

    could it be a heat sink mounting problem maybe? it did this the last few times ive been playing crysis, but im not sure about other games. i know those temps arent dangerous, but still...
     

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    roosta, Jan 8, 2009
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  2. Jlbrightbill

    Jlbrightbill Notebook Deity

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    Unless you have the windows open in winter it's highly unlikely your CPU is ever at 62F/17C, so there may be problems with the sensor.

    Sometimes if a heatsink isn't mounted evenly, or even if the surface itself is uneven, you can get temperature gaps like that. But I'm not convinced that you're not getting incorrect readings.
     
    Jlbrightbill, Jan 8, 2009
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  3. 0.0

    0.0 Notebook Consultant

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    My guess for the top temperature would be the North Bridge.
     
    0.0, Jan 8, 2009
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  4. roosta

    roosta Notebook Evangelist

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    yup, its winter. yup, the house had no heating, and nope, the windows were closed, but they are drafty single glazed 150 year old windows x2 of them in a small room. i was wrapped up in coat scarf and rug to keep warm. i can believe those temps. i have another temp check of 14*C from when i was there.
    im now back at uni where the heating has been off for 2 weeks and the room had cooled to very cold. 2 days later with heating on 24/7 its still pretty cold, idle temp of cores is now at 22*C. i'd say they were pretty accurate. the back is rased by 2 bottle tops under each foot which is the same as 2 DVDs, so the table isnt storing any heat.
     

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    roosta, Jan 8, 2009
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  5. John Ratsey

    John Ratsey Moderately inquisitive Super Moderator

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    Each CPU core has different electrical properties. The two cores of my P8600 have 5C differences when on light load. I think one has very low power leakage and the other is somewhat higher. Two cores like the cooler one would have got the CPU put in the SU series bin while two cores like the hotter one would have got it into the T series bin.

    John
     
    John Ratsey, Jan 8, 2009
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  6. eleron911

    eleron911 HighSpeedFreak

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    It`s normal to be a difference between the core temps...sometimes even 10C, since not all programs are multithreaded anyway.
     
    eleron911, Jan 8, 2009
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