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Overclocking Temperature issues

Discussion in 'Hardware' started by mm vr, 17 Jul 2009.

  1. mm vr

    mm vr The cheesecake is a lie

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    I'm overclocking my CPU, and before I start, here are the specs:

    - P5Q Pro
    - Q9550
    - 4 sticks of 800MHz CAS4 Corsair XMS2 at 2 gigs each
    - TRUE
    - Antec P182 (currently having the side panel open)

    Using RealTemp and Everest to monitor my temps, both using a TJMax of 100°C. Stressing with LinX.

    It has been like this from the beginning. Idle temps are in the 40°C mark, and load temps at stock clocks & voltages approach 60°C.

    Applying an overclock, gotten it easily up to 3.4GHz now (1.285VCore, 1.26VTT, all other voltages manually set at minimum). Load temps over 70°C, the Q9550 is specced for 71.4°C which worries me.

    Also worth noting that the heatsink base (ontop of the CPU) barely feels warm even if the temperature reported is 70°C. So either it is a miscalibrated sensor or a very badly seated heatsink.

    AFAIK, the heatsink is correctly seated, with correct amounts of TIM applied, but who knows. Reseating the TRUE is the last thing I want to do, it's such a job! :p

    Any ideas? Ill be happy to provide more info if necessary.
     
  2. mm vr

    mm vr The cheesecake is a lie

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    Any ideas what could cause it?

    Could it be that my TRUE's bottom is not flat at all like Pookeyhead's?
     
  3. Pookeyhead

    Pookeyhead It's big, and it's clever.

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    Whether it's caused by that or not, the fact is you will see a large improvement if you lap it... so that's what I'd be doing first.

    I don't know much about overclocking quads, so can't comment on your temps... but get that TRUE lapped. :)
     
  4. mm vr

    mm vr The cheesecake is a lie

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    Hmm, lapping is something I'd rather not do actually. Not only because it takes years to do!

    It also has half a year of warranty left, but I guess nothing can go wrong with a heatsink. :)

    I'll check if it needs lapping at some point if I have time to remove the mobo.
     
  5. Pookeyhead

    Pookeyhead It's big, and it's clever.

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    You may not need to remove the mobo. My mobo holds the TRUE's backplate in place when I remove it.
     

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