TjCase vs Tjmax

My motherboard sensors indicate that my CPU is at 64 celcius, but when I Prime, it goes up to 78. Is that correct? I thought there should only be ~5c difference between the CPU temp and the Core Temps.

I'm using RealTemp with TjMax @ 100 for my cores.
4 answers Last reply
More about tjcase tjmax
  1. Oatmealz said:
    My motherboard sensors indicate that my CPU is at 64 celcius, but when I Prime, it goes up to 78. Is that correct? I thought there should only be ~5c difference between the CPU temp and the Core Temps.

    I'm using RealTemp with TjMax @ 100 for my cores.

    1. It is normal for the core temps to increase under Prime95 which is an app that forces your CPU to run at 100% all the time.

    2. TjCase indicates the case temperature of the CPU.

    3. Tjmax is something defined by peoples and it varies from version/app to version/app. It is either defined to be 98C or 100C in Core temps and Real temps.
  2. Sorry, I meant my Motherboard indicates 64 celcius but RealTemp is indicating 78 celcius on the cores. Should I calibrate my TJ Max so that the core temps are within ~5 degrees of the TJCase?
  3. If you were refering the core temps shown in the BIOS: The core temps shown in BIOS is idle core temps and therefore it is of course lower.


    If you mean the core temps shown in the PC monitor software came with your MB: Don't trust it! The core temps shown in "Core Temps" is much more reliable. Download and install "Real temp" and it should give same/similar reading as "Core Temp".
  4. Oatmealz said:
    Should I calibrate my TJ Max so that the core temps are within ~5 degrees of the TJCase?


    There is NO sensor that can accurately give you a Tcase temperature. Disregard any software that states case temperature and just use CORE temperatures.
Ask a new question

Read More

Intel CPUs Motherboards Overclocking