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Thread: overheating or ok?




  1. #1
    fuzzy14 is offline Junior Member
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    Default overheating or ok?

    So, I got my ASRock Z97 Extreme4 all setup with my i4790k and oc'd using ASRock standard software tweaker to 4.7 ghz. I'm using a Noctua DH-14. At Idle CPU is around mid 30C. The front most cooler fans isn't quite able to go to the bottom of the heatsink as the memory blocks it. It sticks out I guess 1/4". I cannot put on the side panel because it sticks out soo much. There is a case fan behind them (the power supply is on the bottom). I unplugged the top case fan as it was pushing air in (I think it would be better to reverse it?). I took the cooler off the cpu twice to verify the thermal paste is ok. I think one time I put way too much paste on, so I redid it (and sure enough there was too much on). BIOS is v1.10 (latest).

    Now when I run Prepar3d v2.3 (a flight simulator) with built in aircraft, I get temps to 73C. When I fly the Captain Sim 777, I get temps above 80 and eventually to 99C. At which point, Windows 8 throws a CLOCK_WATCHDOG_TIMEOUT. From what I have read, this error indicates a CPU locking up (and possibly defective CPU).

    If I OC to 4.5 ghz, my temps in P3D go to 73C with 777 and works ok.

  2. #2
    fuzzy14 is offline Junior Member
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    Default Re: overheating or ok?

    Some corrections, I am now showing 60-65C with 777 and P3D at 4.6 ghz. It seems much better since I redid the thermal paste.

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    Tralfaz is offline Junior Member
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    Default Re: overheating or ok?

    When applying thermal paste, I usually go with a tiny amount. (grain of rice).

    Having that top fan blow out would probably help, as would being able to put the side panel back on. That would better move air in, and out of, the case.

    I use a small down-flow cooler and when gaming my temps are quite a bit lower than yours 47-50C. Granted, my OC isn't nearly as high, only 4.2GHz. My components are a bit older/lesser as well.

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    parsec is offline Senior Member
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    Default Re: overheating or ok?

    Several things to consider about your CPU temperatures:

    Starting with Ivy Bridge "mainstream" CPUs (your i7-4970K is classified as mainstream), Intel stopped using solder between the processor die and the Integrated Heat Spreader (IHS) and now simply use standard TIM. Over clocking enthusiasts will de-lid Haswell CPUs to get better temperatures. They literally remove the top IHS, apply one of the liquid metal or standard TIMs, remove the glue used to hold the IHS in place, and then replace the IHS and mount the CPU in the socket. They can get temperature drops of 10C+ depending upon what they use.

    Haswell processors run hot, probably hotter than any other processor, given their power usage. High over clocks (above 4.5GHz) will challenge any air cooler, even one of the best like your Noctua DH-14. Intel moved many of the processor voltage regulator components from the mother board to the CPU itself with Haswell processors, which adds to the heat output and difficulty in cooling them.

    Your PC case sounds small, how many fans does it have?

    Your 780 video card is probably dumping most of its heat into the PC case. When you run your flight simulator programs, they stress the video card and it creates a lot of heat. If that heat remains inside the PC case, then that warm air is being used to cool the CPU. That of course is not good for CPU cooling. Any idea what temperature your video card is at when using those programs?

    Usually video games use much more GPU resources than CPU. Your flight simulators may be different, but I don't know. Any idea what your CPU usage is when they are running?

    I could go on about how Haswell processors can create a lot of heat, but we really need you to answer the questions I included above first.

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    Default Re: overheating or ok?

    Quote Originally Posted by fuzzy14 View Post
    So, I got my ASRock Z97 Extreme4 all setup with my i4790k and oc'd using ASRock standard software tweaker to 4.7 ghz.......

    ..........BIOS is v1.10 (latest).
    Umm..... Latest BIOS for the z97 Extreme4 is 1.30, June 4 2014. Added was "2. Add i7-4790K, i5-4690K, Pentium Anniversary G3258 EZ-OC table."
    #1 - Please, when seeking help, enter the make and model of ALL parts that your system is comprised of in your Signature, or at least the model #'s in your System Specs, then "Save' it.
    ____If you are overclocking, underclocking, or undervolting any parts, informing us of this and their values would prove beneficial in helping you.

    #2 - G.Skill RAM Configurator for your boardSamsung Memory for your boardLatest AMD Chipset Drivers/WindowsLatest AMD Graphics Drivers/WindowsLatest Intel Drivers

    #3 - Please use the eXtreme Outer Vision Power Supply Calculator found HERE to determine if it might be your PSU at issue.
    ____Consider your PSU to be the foundation from which all else is built upon. Anything built upon a weak foundation is poorly built.

  6. #6
    parsec's Avatar
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    Default Re: overheating or ok?

    Quote Originally Posted by fuzzy14 View Post
    So, I got my ASRock Z97 Extreme4 all setup with my i4790k and oc'd using ASRock standard software tweaker to 4.7 ghz...
    Quote Originally Posted by - wardog - View Post
    Umm..... Latest BIOS for the z97 Extreme4 is 1.30, June 4 2014. Added was "2. Add i7-4790K, i5-4690K, Pentium Anniversary G3258 EZ-OC table."
    OMG, did not notice the auto OC and BIOS thing!

    No wonder your temps are so high! It's a miracle they aren't higher! I can only imagine the auto OC settings for 4.7GHz!

    No doubt using a high Adaptive voltage and a crazy high CPU Input voltage.

    At 99C, which no doubt actually hit 100C+, the CPU begins to throttle itself, and lowers the CPU speed. The automatic CPU shutdown temperature is not to much above that, ~110C. Hardly a defective CPU.

    The rated Tcase temperature of an i7-4790K, like many Haswell processors, is 72.72C. Tcase is the temperature of the top of the CPU, the IHS surface that contacts the CPU cooler.

    Forgot to say... over-heating, YES!!!

    You know that a CPU OC like that is not guaranteed to not fry the CPU and mother board, right?

    Forget 4.7GHz, keep it at 4.5GHz and be glad your latest TIM application improved things. You still need better case ventilation.

    Quote Originally Posted by Tralfaz View Post
    ...
    I use a small down-flow cooler and when gaming my temps are quite a bit lower than yours 47-50C. Granted, my OC isn't nearly as high, only 4.2GHz. My components are a bit older/lesser as well.
    No offense my friend, but comparing the gift from Intel that Sandy Bridge processors are, to Haswell is night and day when it comes to CPU temperatures.

    Sandy Bridge processors were the last mainstream Intel models to use solder under the IHS rather than TIM, and run super cool. My i7-2600K on a little Corsair H60 at idle with CPU power saving options enabled will dip below room temperature in Winter, below 20C. If my Haswell CPU dips below 30C at idle with power saving options enabled (CPU speed of 800MHz) on a Corsair H80 with two fans, I'm doing very well. This is also why your CPU temps are so good with a simple top down cooler. We WISH Haswell used solder instead of TIM!!

    And, the Tcase of your i5-2500K and my i7-2600K are both 72.6C, so really no difference than Haswell processors.

  7. #7
    Tralfaz is offline Junior Member
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    Default Re: overheating or ok?

    No offense taken. I've read about the Haswell and how much heat they generate. I'd liquid metal it and be done with it, if it were mine.

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    Default Re: overheating or ok?

    Quote Originally Posted by parsec View Post
    OMG, did not notice the auto OC and BIOS thing!

    No wonder your temps are so high! It's a miracle they aren't higher! I can only imagine the auto OC settings for 4.7GHz!

    No doubt using a high Adaptive voltage and a crazy high CPU Input voltage.
    Hear hear !!! .................................................. ............................ natch that [s]I'd love to see some F12 BIOS screenshots at what 4.7 represented in the BIOS.[/s]

    I'd love to see some screen grabs from within A-Tuning at what 4.7 represented

    OP, FTW, Screenshots! Screenshots!
    Last edited by - wardog -; 08-28-2014 at 06:23 AM.
    #1 - Please, when seeking help, enter the make and model of ALL parts that your system is comprised of in your Signature, or at least the model #'s in your System Specs, then "Save' it.
    ____If you are overclocking, underclocking, or undervolting any parts, informing us of this and their values would prove beneficial in helping you.

    #2 - G.Skill RAM Configurator for your boardSamsung Memory for your boardLatest AMD Chipset Drivers/WindowsLatest AMD Graphics Drivers/WindowsLatest Intel Drivers

    #3 - Please use the eXtreme Outer Vision Power Supply Calculator found HERE to determine if it might be your PSU at issue.
    ____Consider your PSU to be the foundation from which all else is built upon. Anything built upon a weak foundation is poorly built.

  9. #9
    fuzzy14 is offline Junior Member
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    Default Re: overheating or ok?

    Correction, I am on v1.30 for UEFI.

    I will have to check the video card temps. At one point, I did crank up the nvidia inspector settings and the fan on the video card did increase in speed. I have since then set them back down to normal levels.

    I have flown for about 4+ hours at a time and the temp has stayed around 69-71C without any lock ups. Inside temp is 75F.

  10. #10
    parsec's Avatar
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    Default Re: overheating or ok?

    The video card should be the component that is the most used/stressed when running a simulator like that or gaming.

    Monitor the '780's temps while using the "777" simulator.

    Wait, just noticed in your specs, are you using two 780's in SLI?

    Plus, no offense about the auto OC setting screen shots that were asked for, we are just curious what they would be. They are ASRock's settings, not your personal choices.

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