Omen 17t laptop high CPU temperature

Discussion in 'HP' started by Sabertiger, Sep 16, 2018.

  1. Sabertiger

    Sabertiger Newbie

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    Hi everyone, I just got Omen 17-an100 CTO laptop with i7-8750h, gtx1070, 16gb ram, and 128 gb ssd. I love it. It is a big upgrade from my dell inspiron 17 and everything ran great. While GPU temp is acceptable, max out at around 62, CPU temp is way too high: 50-60 Celsius idle and reach up to 100 under load. My room temperature is 21 degree Celsius or 70 F.
    While there is no problem so far, the temp is significant higher than my old laptop. From what I read it is a common temp for this laptop out of the box.
    I also run speedfan app and notice that while fan 1 runs normal at 2195rpm or faster depending on usage, fan 2 speed is 200-ish rpm, and never reach the thousand rpm mark (or even 300 mark). Again, I have seen this problem in discussion, but never found any solution and explanation.
    I'm planning to return the laptop as the last resort, but I would love to hear if anyone can help me improve the CPU temp, or confirm that it can be done for this laptop. I have read about thermal paste, undervolt, and disable turbo boost max, but there seems to be not much improvement for this particular model.
     
    Last edited: Sep 17, 2018
  2. KING19

    KING19 Notebook Evangelist

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    The Intel i7-8750h is known to get very hot because its a 6 core CPU. With turboboost on it can reach up to 4.1 GHz with 1 core and 3.9GHZ with all 6 cores and thats why it can easily reach to temps up to 100C, Also HP laptops are known to have bad cooling systems so im not surprised. I suggest you to try to undervolt it before doing anything.

    Intel XTU
    https://downloadcenter.intel.com/download/24075/Intel-Extreme-Tuning-Utility-Intel-XTU-

    Disabling turboboost would help with the temps greatly but your CPU will only reach to 2.2GHz base clocks which kinda kills the purpose of having a powerful CPU like that and repasting the CPU and GPU with better thermal paste would require for you to disassemble your laptop if you're comfortable of doing that but it'll help as well. If all else fails you can return it within 30 days
     
  3. Sabertiger

    Sabertiger Newbie

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    thank you for replying. Yes, I can confirm that without turboboost, the i7 ran a lot cooler, maxed out at 60-70 degree Celsius, but the performance decreased significantly in all the tests and games.
    I also tried to undervolt using throttlestop, setting -130mv, but CPU temp is still reaching up to 90-ish under heavy load. Would anyone have any tip?
     
  4. KING19

    KING19 Notebook Evangelist

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  5. 3uphrates

    3uphrates Newbie

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    Strange...

    I have the Omen 17 an104nf, same CPU but with a gtx 1060. Bios F05.
    Undervolt set to -170mv for core and cache.

    With room temperature at 24°C, after like 1 hour idle temps are 36°C for CPU and 40°C for GPU.
    If I run Unigine Heaven, CPU reaches 72°C and GPU 65°C.

    I do have the option "fan always on" enabled in Bios. It only activates the CPU fan on idle, not the GPU fan.
    Also I noticed the CPU fan is always spinning faster and louder than the GPU fan, in every situation.
    Speedfan also gives low values for my fan2 but it's not reliable.

    I repasted (took a while...) and the temperatures are approximately the same for both CPU and GPU (I used Noctua NTH1).

    Your CPU temps are indeed very high. What also surprises me is that your gtx 1070 runs cooler than my 1060, although it should be the other way around.
    CPU and GPU are very close on the the motherboard and share heatpipes. Just an assumption here, but there might be a contact issue between your CPU an the pipes, that would also explain why your GPU stays fresh.
     
    Last edited: Sep 18, 2018
  6. Sabertiger

    Sabertiger Newbie

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    Yes, my bios is the latest one F.05:(. Thank you for sharing your experience, 3uphrates. In the future, I'd like to try to enable "fan always on" in the bios and do my thermal paste. Setting undervolt to -170m, however, is too low for my machine. Using Throttlestop 7.80, I found that by setting turbo boost power max to 30W (instead of default 45W), together with undervolt -129.9mv for both core and cache, CPU temperature decreases even more.
    In cinebench, my CPU maxed out at 85°C, while still gave me a score of 1168 cb compared to 1221 before. My idle temp now for CPU and GPU are 45°C and 44°C respectively, and doing basic task like web browsing, typing, opening windows bring the CPU temp to around 52°C. Running Unigine Heaven, my scores are very close compared to before (2007 compared to 2033). My CPU reached 81°C, while GPU 66°C.
    1070 runs very cool in this laptop indeed. While undervolt supposed to increase performance, my machine experienced a slight decrease in performance, but a huge improvement in temperature. Maybe it has something to do with lowering the turbo boost max. On the other hand, I'm not quite sure about what to set for the turbo boost short power max, and leave it at default 78w. If anyone has any idea what to do with these settings, please let me know.
     
  7. KING19

    KING19 Notebook Evangelist

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    What about real time performance in games and other intensive programs because most of the time benchmarks wont tell the whole story and also do you know what your CPU's clock speed was when running cinebench and other things with your undervolting settings? Normally undervolting wont affect performance at all it just makes your CPU use less voltage
     
    Last edited: Sep 18, 2018
  8. Sabertiger

    Sabertiger Newbie

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    Yes, the clock was still able to hit 40000mhz, but perhaps for shorter duration due to turbo power limit being only 30W, hence the lower test result. On the other hand, after a whole day testing in and out, I seems to find the best spot for my chasis by capping the frequency of the CPU to 3.5 GHz, undervolt set to -130.9 mv. By doing so, the temperature in those benchmark test is actually lower even more. Cinebench avg 54 and max 77 °C, 15 minute of Primer95's Blend test brings an average of 78 and max 83°C, Unigine Heaven avg 66 and max 74°C. The results are very close to prior tests without any undervolt. Onto game performance, the above settings actually improve my GTAV fps to 90-100 avg (with most settings on very high), while temp is avg 75 and max 87°C (after maybe 20 minutes of playing). The only test that pushes CPU's temp up to 90°C is Final Fantasy 15 benchmark in high quality and 1080p, with an avg of 74°C. I have not had any intensive programs installed yet , but I think the temp management is probably the best I could do with software.
    Perhaps with better thermal paste and future HP updates can help with temps even more, but I'm still not so sure if I should keep the laptop or not, since there is not many laptop with GTX1070 and i7 8750h have better temps.
     
  9. KING19

    KING19 Notebook Evangelist

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    Those temps are much better than what you was getting before and its hard to get better temps than that with the undervolt + better thermal paste on that CPU. Like i said before HP laptops are known to have bad cooling systems and also there are many complaints about that CPU in other laptop brands as well. If you're going to return it you only have 30 days from the day you've received it.

    EDIT: Tbh selling a 6 core CPU in a $1000+ price is bad idea especially when most people dont know anything about Undervolting and changing the thermal paste like us
     
    Last edited: Sep 19, 2018
  10. Sabertiger

    Sabertiger Newbie

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    Thank you. I decided to return my laptop and wait for the Acer Helios 500. Just to share my experience to someone else who might look for the Omen 17t. It is a very nice laptop with solid build. GPU is always cool, max out at 68-70 at the most demanding task. The only problem for me is CPU temp, which can reach 99°C, but it can be controlled with undervolt and limit the clock speed. By capping the clock between 3.0-3.5 Ghz, CPU temp can reach low 80°C at most in any task, and my game performance is still very good, or even better with max settings (Witcher 3 fps around 57-60, GTAV 90 fps, cs go 150-200 fps to name a few). You only lose your CPU potential if you do rendering, video conversion, etc.... by the low clock speed. I've try with cooler pad, vacuum cooler such as opolar, but with normal clock speed and undervolt, temp still reach mid 90 easily. The only thing I haven't tried is to repaste, which would void my warranty. If strictly for gaming, I don't think you would miss out anything by lowering the clock speed.
     
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