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CPU temperature

Discussion in 'ACC General Discussions' started by renato63, May 13, 2019.

  1. renato63

    renato63 Gamer

    This evening I wanted to do a CPU stress test.
    These are the results after 20 minutes with Prime95:


    After the test the minimum temperatures fell to around 30 degrees so I think the heatsink I have is not so bad.
    I do not know what to think... :confused:
  2. fabT

    fabT Hardcore Simmer

    It's normal have the temperatures settling after the stress test.

    Yet i think 80-83 °C is very hot. 20 °C higher than mine.
    There's a chance your CPU is going to throttle.
  3. renato63

    renato63 Gamer

    There are two weeks to ACC v 1.0 and now I'm waiting for the exit to see if they managed to optimize it and then I decide what to do, thanks again for the help ;)
  4. vortex19

    vortex19 Racer

    It's hot but I wouldn't call it very hot. Remember also that this is at the end of a stress test which deliberately pushes all of the cores to the maximum - playing a game is unlikely to cause these temperatures. The CPU shouldn't start to throttle until it gets close to about 100 degrees C. Whilst running hot will not have any immediate effect on the CPU, it will ultimately shorten its life (but that will still probably be longer than you'd keep it, anyway). That said, I'd still recommend getting a decent cooler and running at the lowest temperature you can.
    luxxx797 and After_Midnight like this.
  5. Skybird

    Skybird Alien

    Running a Noctua NH-D 15S on top of an i7 8700k, temps up to 80° are what I expect in ACC.

    A thing that many people may overlook is that it is not just the CPU cooler havng an effect, but ambient temnperature and especially the temp inside the tower of the PC. If the airflow is not optimal or there are not sufficient additonal ventilators that put cool air in and warm air out, then you get a higher temp on your cpu as well since the air used for cooling already is "pre-warmed".

    Clean up any cable mess there might be in your PC. Check that cards and ventilators form a nice and unobstructed airstream inside the tower. I assume you use dust filters, if not, do so. You then should not have any significant amount of dust forming up inside the tower, which then is a sign that additional to the effect of the filters your rear vent pushes less air out than your front vents suck in: that is good, it leads to air overpressure inside. If you have a lot of dust in the tower while using filters, it means that more air gets pushed out by the rear vent than the frontal vent(s) can push in, the tower than sucks in dust. Dust can block coolers and help raising temp by covering surface of components. Declare war on dust.

    In general, while 80° is not optimal, it still is clearly out of the tehcnical danger zone. The alert bells for thse type of CPUs ring at near 100°, I think. So do what can be done, but dont panic. My own tower setup is very clean inside, but with two frontal and one rear vent I am probbaly underequipped while the CPU cooler is very good. On very hot summer days this can become a minor concern, butn usually I stayat temps not higher than 70° at load. ACC is an exception, it is a CPU killer, I noticed. No other title I run puts so much stress on the system, CPU and GPU as well. Running VR here. 80° will not break your system all of a sudden, but can maybe shorten the longevity of the CPU. But what does that mean? I know, since 30 years, nobody who ever suffered from a molten CPU. Its possible that it happens, and from reaidng I know that it does happen to some people. But not in numbers that I am seriously concerned. Mix pragmatism with relaxation.

    I would however recommend to not overclock your CPU with your current system setup.
    After_Midnight likes this.
  6. renato63

    renato63 Gamer

    When last week I changed MB, CPU and RAM in the case there was almost no dust after 5 years since I assembled the last PC in 2014.
    I am always very careful about the ventilation of the case and the formation of dust.
    As far as current temperatures are concerned, I do not worry at all, I think that the I5-4690S and Intel's stock fan with the heaviest games reached peaks of 78-79 degrees and in 5 years I never had any problems.
    I can tell you something else, I have a device to measure consumption in watts and today's PCs consume much less than in the past.
    The I5-8600 (with GTX 1070 video card) in IDLE consumes about 40 watts (monitor excluded) while during a replay of ACC it consumes about 140 watts.
    I remember that in the 2010s when I had an Intel E8400 (with ATI HD6850 video card) the temperature in IDLE was around 100 watts and in the game came to around 230 watts.
    I started playing with this game by the legendary Geoff Crammond:
    If you want I can tell you the history of video games and PCs since 1988 but this is now prehistory :p
    fabT likes this.
  7. R1-Limited

    R1-Limited Racer

    You want a cooler CPU awesome
    Spend the money on a decent cooler. Go Liquid if you can and or take a look at Coolmaster Hypercool 212 EVO
    Be mindful on your Csse depth on that one. Been using these for a long time, temps are in and about the same as mid liquid costs.
  8. fabT

    fabT Hardcore Simmer

    If you look back at my previous test, you'll see that NH-D 15S coupled with a i5 8600k does not exceed 65 °C even after a 30 minutes Prime95 test done on the most aggressive settings.
    This with a cheap Mini ATX temporary case ( 19 x 42 x 42 cm ) and having the CPU sitting a couple inches off a GTX 1080.

    Some pretty confined, messy, dusty and warm place ( see attachment ;) ).
    Yet it stays cool somewhat.

    Whenever i run ACC it runs much cooler.
    Last time i checked highest temperature after 2 hours of ACC driving was 59 °C.
    That's with 20-22 °C ambient temp.

    On normal usage, just while i type, CPU mac core temps at 4,2 GHz are within 29-39 °C / 22 °C ambient temperature.

    I highly doubt that coupled with a 8700k temps would be massively higher ...

    Attached Files:

    • case.jpg
      File size:
      290.1 KB
    Last edited: May 18, 2019 at 9:19 AM
  9. alex bonner

    alex bonner Racer

    A de-lid and a H100i cooler will help you massively. You got 50% more cores now.
  10. Ofc a de-lid will help to bring the temps down (using liquid metal) but it will not increase the amount of cores o_O
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