3 Replies Latest reply: Mar 26, 2012 12:22 AM by Terabytes RSS

Ivy bridge "temperature"

KHG Community Member
Currently Being Moderated

Ivy are Processor temperatures high very?

 

■ 4.8GHz overclock:

 

Idle 0.94V ~ Full Load 1.31V

Temperature: 104°

Tj.Max : 105°

Is this true?

 

Thanks in advance.

http://www.overclock.net/image/id/1989765

 

 

  • 1. Re: Ivy bridge "temperature"
    Adolfo_Intel Community Member
    Currently Being Moderated

    According to the information on the monitoring software that you are using, this seems to be an Engineering Sample processor (ES). Please read the following information:

     

    “Your processor is marked as an engineering sample. This is a pre-production part that is distributed to hardware and software manufacturers to allow them to develop products prior to the introduction of a processor.

     

    Since it is not a production unit, it does not have warranty coverage, and performance is not guaranteed.

     

    I recommend you return it to your place of purchase for a refund or a replacement.”

     

    I also see that you are over-clocking the processor, so it is expected to have higher temperatures due to over-clocking.

  • 2. Re: Ivy bridge "temperature"
    parsec Community Member
    Currently Being Moderated

    I have never understood exactly where programs like Core Temp come up with these TJ Max figures, as you can see in your screen shot, since they don't explain it.

     

    But, it could very well be the actual TJ Maximum temperature, which is the temp that will shut off the CPU. That is stored in a special register, and assuming the programmer is reading the correct one, that is it. In earlier Intel CPUs, TJ Max is set individually for each CPU, so that is not a figure for all of that model of Ivy Bridge CPU.

  • 3. Re: Ivy bridge "temperature"
    Terabytes Community Member
    Currently Being Moderated

    The Tjmax values are read from the CPU core MSRs or unless specs have changed are target temperatures. Meaning that this is the lowest temperature for Tjmax, IOW the real Tjmax could be some degrees higher.

     

    Also note Tjmax is not the temperature that initiates HW CPU shutdown but is the temperature at which the processor is regarded as hot. When this temperature is reached the normal CPU HW response is to initiate throttling to help cool the processor. Actual HW shutdown temperature might possibly be somewhere around ~130C.

     

    It may be that through ACPI, shutdown and throttling are SW initiated before HW initiated. IOW SW/FW temperature thresholds may be set lower than HW thresholds.

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