E8400: Are these temperatures safe?

Hello everyone,

I am just wondering if these are safe temperatures for my e8400 @ 3.0GHz while running OCCT and playing games.

While running OCCT, my temperatures reach the following maximums: Core #1 - 69 degrees C, Core #2 - 68 degrees C.

While playing a game, such as Crisis, my temperatures reach the following maximums: Core #1 - 58 degrees C, Core #2 - 56 degrees C.

At idle, the cores are between 37-42 degrees C depending on how hot it is on that particular day.

Are these temperatures considered safe?
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  1. I'm not very knowledgeable about this CPU, but Computronix's CPU temperature guide suggests that this is a hotter than it should be.
  2. sminlal,

    I don't understand how you arrived at that conclusion. :??: From the Guide:

    Section 6: Scale

    ... as Tcase Max will be exceeded before Tjunction Max is reached, Tcase Max is always the limiting thermal specification...

    Scales are ordered from highest to lowest Tcase Max, according to Intel Thermal Specifications...

    Scale 2: Duo
    E8x00: Tcase Max 74c, Stepping E0, TDP 65W, Idle 8W
    E7x00: Tcase Max 74c, Stepping R0, TDP 65W, Idle 8W
    E7x00: Tcase Max 74c, Stepping M0, TDP 65W, Idle 8W
    E5x00: Tcase Max 74c, Stepping R0, TDP 65W, Idle 8W
    E5200: Tcase Max 74c, Stepping M0, TDP 65W, Idle 8W
    E4700: Tcase Max 73c, Stepping G0, TDP 65W, Idle 8W
    E4x00: Tcase Max 73c, Stepping M0, TDP 65W, Idle 8W
    E2xx0: Tcase Max 73c, Stepping M0, TDP 65W, Idle 8W
    E8600: Tcase Max 72c, Stepping E0, TDP 65W, Idle 8W
    E8xx0: Tcase Max 72c, Stepping C0, TDP 65W, Idle 8W
    E6x50: Tcase Max 72c, Stepping G0, TDP 65W, Idle 8W
    E6540: Tcase Max 72c, Stepping G0, TDP 65W, Idle 8W

    -Tcase/Tjunction-
    --70--/--75--75-- Hot
    --65--/--70--70-- Warm
    --60--/--65--65--Safe <--
    --25--/--30--30-- Cool

    Sudbina,

    Your temperatures are well within Intel's specifications for your E8400, regardless of whether you have the C0 or E0 variant. If you haven't read the Guide, Tcase is CPU temperature, and Tjunction is Core temperature, which runs 5c higher, as you can see from the Scales. Also, OCCT is not appropriate for thermal benchmarking. Prime95 Small FFT's is the Standard, which is explained in the following thread: Temperature Monitoring - http://www.tomshardware.com/forum/254456-29-tempeture-monitoring

    Please read the entire thread.

    Comp :sol:
  3. CompuTronix said:
    I don't understand how you arrived at that conclusion. :??
    Whoops! My mistake! For some reason I looked at the entry for E6x00 instead of E8x00...

    Comp, why isn't your thread a sticky any more? It took me some time to find it again...
  4. It still is a Sticky, but it was moved to the newly created Overclocking > Intel Forum, along with the i7 OC Guide and the Core 2 OC Guide. Also, you can always just click on the link in my signature.
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