[Need Help] Extremely Hot GS65 i7-9750H (GenTechPC)

Discussion in 'Hardware Components and Aftermarket Upgrades' started by Y060N, Aug 9, 2019.

  1. Y060N

    Y060N Notebook Enthusiast

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    Hey everyone - hoping you can help me optimize the settings on the MSI GS65 Stealth-483 (240Hz, nVidia RTX 2060 GPU 6GB GDDR6, 9th Gen Intel).

    I had purchased it through GenTechPC and upgraded to the Thermal Grizzly Kryonaut applied to both GPU and CPU. I also got the Fujipoly Extreme Thermal Pads. While the GPU is running at a pretty reasonable temperature (81C under load), the CPU just seems to get extremely hot.

    A few days after getting the laptop, I decided to play a game of Overwatch and the CPU was hitting 100C under load in Overwatch, making it nearly unplayable with the stuttering that was happening. I thought that 100C seemed very high since it had been repasted. Here's a screenshot for reference:

    https://i.imgur.com/FZcnJER.png

    I e-mailed Ken@GenTechPC if there may have been a pasting issue and he said "Kryonaut is great, however, it's great on thick heatpipes not on GS65's ultra thin heatpipes. We can repaste 10 times with Kryonaut and the result will be the same."

    Does anyone have a similar setup as me that can let me know what your temps are? Most of the threads I've seen on here and Reddit say that on stock units people are getting 93C on their stock laptop under load. My ambient room temp is around 24C.

    I've been reading more on undervolting and decided to try that. So far I've done 2 things:
    • Went to the battery settings and set the CPU max to 99% (this stops turbo boost I read?)
    • Undervolted the CPU and CPU cache by -125mV
    I ran the ThrottleStop benchmark to get some quick temp readings. Here's some screenshots of my HWMonitor and Throttlestop settings:

    https://i.imgur.com/0JMJdrA.png
    https://i.imgur.com/DlPsM60.png

    With the undervolt I'm still seeing max temps of around 95C with it sitting around 92-93C under full load (after the fans rev up). I've never really monitored my computer before, but I was wondering if it's normal to see such wide ranges between the core temperatures (Core 0 max 95C, core 1 max 88C, etc.)

    Can anyone let me know if these are optimal settings for the laptop? I tried going further with the undervolt but each time I went under -125mV my laptop would freeze. Are there any other settings I can change to try to get the temps lower?

    I had some back and forth with Ken@GenTechPC and he said that I can ship it back for $35 and they will apply liquid metal, but under load I would still be seeing temperatures of 92-93C. Is there a real point in getting the liquid metal applied if it only drops the temperatures a few more degrees? I don't really want to have to wait shipping time + another 10 business days to get the laptop back since I need it to do video processing for work.

    I really appreciate any input anyone has. Thanks so much for your time.
     
  2. 4W4K3

    4W4K3 Notebook Evangelist

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    Give it's thin dimensions, lack of airflow, low volume heatsink, etc you are fighting and upward battle with temperatures.

    That said, there are some things to try. Instead of lowering cpu core and cache together try leaving the cache at -0.125mV and then lower the core more. You should see lower temps.
     
  3. Y060N

    Y060N Notebook Enthusiast

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    Yes, I definitely understand there's only so much you can do with the thin and lights, I just figured I would ask since people are reporting much lower temps on their stock machines.

    Is it okay to run the ThrottleStop Bench back to back (within 2 minutes of doing another Bench)?

    Using those settings, I undervolted to -140mV and was seeing temps hovering around 88C when the fans kicked in.
    I put it down to -150mV but the temps were hovering around 90C when the fans kicked in.

    Both seemed stable, I haven't seen a freeze.
     
  4. bennyg

    bennyg Notebook Virtuoso

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    95C is 95C whether TSBench or game. Running 1024M again and again and again without cooldown will better for testing stability. After all, you don't game for 2mins at a time.

    If your cpu is right on the edge of stability the extra heat will cause an app error or crash.

    Also, waiting til 88C before spinning the fans up is silly. Is there a more aggressive fan profile you can set?
     
  5. Y060N

    Y060N Notebook Enthusiast

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    The fans are always spinning, but it just revvs up super loud once it hits the 90C+ range (when I run TSBench, the temps hit 95-96 and then stabilize at high 88 - 90C. Right now I am sitting at -140mV because at -150mV the temps seemed to go up for some reason.

    I uninstalled Dragon Center based on some recommendations, and installed Silent Option. This was the curve that I found online, so I just copied that: https://i.imgur.com/RMLTYEE.png

    Should I change anything? I feel like such a noob because I've never had to change any settings since I've mainly used desktops in the past.
     
  6. Felix_Argyle

    Felix_Argyle Notebook Consultant

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    Try raising it above the surface of your desk. Put some stuff under it just make sure to not cover air intake.

    Repasting with Kryonaut was also waste of money, many times this won't do anything on laptops, I would repaste it with Gelid GC Extreme or Kingpin kPx paste instead. You can do it yourself, it's not hard.
     
  7. custom90gt

    custom90gt Doc Mod Super Moderator

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    Repasting a GS65 isn't a super easy job because of the position of the motherboard (have to remove it). Chances are if Kryonaut temps are that high, there wouldn't be a drop with GC Extreme or Kingpin KPx. There may be a small gain to be had with LM, but again, that's a small gain for a lot of additional hassle and risk.
     
    Vasudev and Y060N like this.
  8. Felix_Argyle

    Felix_Argyle Notebook Consultant

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    Yea, my bad, I forgot that the mobo is inverted. Repasting with thicker paste would still help, though, if there is a poor heatsink contact with uneven surface. Looking at temp results with more than 10c difference between cores it does look like there is some defect with heatsink where the surface is uneven or the mounting pressure is uneven.
     
  9. Y060N

    Y060N Notebook Enthusiast

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    Sorry for the slow reply - I went to bed. I already have it raised off of my desk - once I hit the 100C temperatures I went and dug up an old laptop cooler I had bought 7-8 years ago. It dropped the temps around 2C (98C when I didn't undervolt). All of the tests after the undervolt (the second set of screenshots in the original post) have been with a raised surface.

    Here's a pic for reference: https://i.imgur.com/9rZWHkp.jpg

    And yeah, as @custom90gt said, unfortunately the mobo is upside down so I wouldn't feel confident opening it up. I've built a lot of desktops, but never even opened a laptop. I wouldn't trust myself to not screw up some of the cables/ribbons.

    I see lots of people in threads claiming they are running high 70's and low 80's under load with the same processor and laptop after undervolting, so I was just wondering if there were additional settings I could apply to maybe get closer to those values. Ken@GenTechPC said that I should still see 92-93C under load with liquid metal, so I'm not sure it's really worth the cost and time.

    That said, I'm not sure if this pasting had a mistake because of the 10C differences between cores, but I am also not sure if that is normal on these kinds of laptops. Ken assured me it was normal, but I wanted to get a second opinion as well.
     
  10. 4W4K3

    4W4K3 Notebook Evangelist

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    10C difference between cores is not ideal, but it is common. Especially on laptops with less than ideal mounting pressure (the majority out there) you will not see desktop-like performance when it comes to temps. 5-10C difference in cores can even be down to work load. Maybe one core is being pegged more than the other. Many applications do not equally load all cores. The physical location of the core matters as well. Cores places towards the outside of the die will run cooler (generally( while cores towards the middle run hotter. This is present on desktops as well, but less evident due to better cooling, heatsinks, and mounting pressure.

    I'd be floored if another Stealth owner was only in the high 70's on facory/stock air cooling under extended load. More than floored, I'd be incredibly skeptical. Mid 80's to low 90's is much more common.

    Continue messing with the core undervolt. I'm running -0.230mV on my cores and absolutely stable (8750H). It doesn't make much sense that you'd see higher temps with reduced voltage so ensure your testing methods are sound and you don't have any variables like programs running in the background or Updates.
     
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