Cooling CPU at 84°c but all cores at ~25°

Discussion in 'Tech Support' started by improprietary, 13 May 2011.

  1. improprietary

    improprietary FT03 is a bitch to watercool

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    I built my pc all the way back... last week and I've found an oddity (apart from calling in Skype on 64 bit :wallbash:) that I did some research on but didn't find anything about really. So if any of you vets would help an ignorant pc user, that would be greatly appreciated! :D

    Basically speedfan tells me that my CPUs at 84° when idle, but all four cores are at 25°, is that a bug or a feature I'm unfamiliar with?
    When under load the cpu peaks at 90° and the cores go to 40°. Graphics card (although unrelated) lays on a nice 70° under load, and "AUX" as speedfan calls it lays on 59°

    I have reseated the cooler thrice with no difference (with 8 hours of idle time in between) with stock cooler and the Noctua NH-C14 and all the drivers are up to date.

    These are the specifications of my build:

    mobo: ASUS p8p67-m pro b3, socket-1155
    cpu: Intel i5-2500 3,3GHz 6MB
    ram: Corsair Dominator DHX DDR3 1333MHz 2x 4GB
    gpu: MSI Radeon HD 6850 1gb GDDR5
    PSU: Corsair HX 750W

    The cpu cooler is the Noctua NH-C14 which will be replaced with a Thermalright Silver Arrow on ~monday so the air stream is continuous in my silverstone FT03 case.


    If this topic has been up before I apologize for adding filler to the forums!
     
  2. TaRkA DaHl

    TaRkA DaHl Modder

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    Try realtemp... sounds like a bug with speedfan.
     
  3. adam_bagpuss

    adam_bagpuss Have you tried turning it off/on ?

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    try coretemp and compare all your temps never trusted speedfan to be honest
     
  4. Salty Wagyu

    Salty Wagyu moo

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    Usually takes a while for sensor apps to bring in support for sensors that are on new motherboards. I have a likewise issue with P8H67-M Pro, apps such as HWInfo, HWMonitor etc. are reporting either the Motherboard/auxiliary temperature to be at 90c which isn't true.
     
  5. IvanIvanovich

    IvanIvanovich будет глотать вашу душу.

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    lol core 1+2+3+4= total temp? probably better to use your bios fan settings or use a physical fan controller rather than speedfan.
     
  6. improprietary

    improprietary FT03 is a bitch to watercool

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    Thanks you two, i'll try out both of them.

    To speak from a first hand experience, it makes you feel alive again :)

    It might have gone confused and tried to do the math yes :p with the new cpu i'm getting pwm fans that i'll control with the bios; I've never used speedfan for configuring those things as i suspect it might go a bit wrong once in a while.
     
  7. lp rob1

    lp rob1 Modder

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    The BIOS knows best. And it controls the CPU fan. So if the fan is howling like crazy then your CPU really IS as 85 degrees. If not - its a bug.
     
  8. TaRkA DaHl

    TaRkA DaHl Modder

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    But bear in mind when in the bios speedstep doesn't work, so you will not be getting a true idle temp displayed, the cpu will actually be sitting at 3.3Ghz when in there.

    Should only be about 40 degrees roughly though, a little less than the 80 or so you are apparently getting :)
     
  9. thehippoz

    thehippoz What's a Dremel?

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    ah yeah this is an old problem.. you can adjust the temperature offset though to fix in the configure/advanced section

    I like using everest
     
  10. Wicked_Sludge

    Wicked_Sludge My eyes! The goggles do nothing!

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    i never look at speedfans other temps, just the cores which usually seem to be accurate.

    i only use speedfan for controlling my fans though. i use realtemp and/or cpu-tweaker for temp monitoring as they are both nicer to look at than speedfan.

    the CPU temp reported by the BIOS is always off. its not just a speedstep disable/enabled thing.
     
  11. oasked

    oasked Stuck in (better) mud

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    You could try using HW Monitor, great little bit of software made by the same people as CPU-Z.
     
  12. knuck

    knuck Hate your face

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    HWMonitor also gives the temperature of each cores individually as well as the CPU's temp. There is such a huge difference in both however that I think the CPU temp can't be trusted. Since it's lower, it must be a sensor in the socket and those are useless. You're better off trusting the core temperatures
     

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