MSI GE66 i7-10750H - Thermal Throttling - High Core Temperature Difference - Performance Impact

TyraelArch

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Hello everyone,

I recently bought this MSI GE66 laptop. It packs an i7-10750H, RTX 3070 125+5W, 32 GB RAM, 1 TB SSD NVME, it sure is a beast of a notebook. However, some recent games are being bottlenecked by the CPU. I know the 10750H is not that strong, but I think the main issue is on the thermal/cooling side. I ran some tests on AIDA64 FPU Stress Test, and while I know it is supposed to really make the CPU to sweat, I saw some things that made me worried. I will describe below:

Conditions:
- Sunday morning, laptop was turned off all night.
- Ambient temperature was 20C.
- Coolerboost enabled (max fan speed).
- Notebook is the same as bought, no modifications whatsoever.
- Notebook backside was elavated from the table with a book (aprox. 2").
- 15 minute duration FPU stress test.

What I expected:
- Lower than 10C difference over all core temperatures.
- Minor thermal throttling.

What I got:
- Wild average temperature differences for cores

Core 1: 90.2 C
Core 2: 68.6 C < Coldest core
Core 3: 94.5 C < Hottest core, I think thermal throttling is happening because of this.
Core 4: 78.7 C
Core 5: 91.2 C
Core 6: 77.7 C

The temperature difference from Core 3 to Core 2 is 25.9 C!

Summary statistics for the 15 minutes stress test:



Is this normal? I feel that my CPU performance is being heavily impacted by this thermal throttling and core temperature differences, which is above 25C. Should it not be with 10C tolerance for all cores? What can I do to improve this situation?
 

Crazydonkey

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Did you have any lag, stutter issues while gaming?
It's normal that the CPU temp goes to 90 degrees or above while gaming, but depending on the running process, it may use single/multi cores.
If you still worry about the CPU temp, you can go to advanced power options, and set the maximum processor state to 99% to disable turbo boost.
 

TyraelArch

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Did you have any lag, stutter issues while gaming?
It's normal that the CPU temp goes to 90 degrees or above while gaming, but depending on the running process, it may use single/multi cores.
If you still worry about the CPU temp, you can go to advanced power options, and set the maximum processor state to 99% to disable turbo boost.
Hello Crazydonkey, I am not really worried about the temperatures, what I want is to use all the performance available in the chip. Disabling turbo boost would do the oposite, reducing drastically the CPU performance, which is already being the bottleneck in some games (BF2042, COD Warzone).
 

next3r

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new cpu ratio "around x40"+ small undervolt
or new thermal paste
 

next3r

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+ coolerbooster or custom fan curve
will start spinning at full speed 94C+ - prochot "800mhz drop/similar brake" ,.,.max perfomance - 90C max
 

TyraelArch

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new cpu ratio "around x40"+ small undervolt
or new thermal paste
+ coolerbooster or custom fan curve
will start spinning at full speed 94C+ - prochot "800mhz drop/similar brake" ,.,.max perfomance - 90C max
I am already running undervolt and coolerboost, it was mentioned in the initial post.



try luck here
I did not understand how this software would help with improving the thermal performance of the CPU. What do you mean?
 

Crazydonkey

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Hello Crazydonkey, I am not really worried about the temperatures, what I want is to use all the performance available in the chip. Disabling turbo boost would do the oposite, reducing drastically the CPU performance, which is already being the bottleneck in some games (BF2042, COD Warzone).
If you think the CPU throttling is limiting the game performance, you can use HWiNFO to log the CPU temp & CPU clock status while gaming.
 

next3r

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I am already running undervolt and coolerboost, it was mentioned in the initial post.




I did not understand how this software would help with improving the thermal performance of the CPU. What do you mean?
disable cores ? "park control"
complete setup for cpu load

Crazydonkey
If you think the CPU throttling is limiting the game performance, you can use HWiNFO to log the CPU temp & CPU clock status while gaming.
or this ,.,.and ignore any new setup when your games works
notebook + benchmarks need CUSTOM MODS / setup ,.,.and results is only for specific usage BENCH
6 cores unlocked "no limit" - 150W .,.,my 4cores need 100W
:LOL:
 

next3r

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,. .send this here "in ZIP" from heavy usage + coolboster "or what you using"
I will send a recommendation and a result

log guide - example
 

TyraelArch

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,. .send this here "in ZIP" from heavy usage + coolboster "or what you using"
I will send a recommendation and a result

log guide - example
Here it is: https://drive.google.com/file/d/1pGa7wmYw_3dLWgPshQjCu7arr2UlgsGo/view?usp=sharing

I played BF2042 for around 25 minutes. As you can see, there is thermal throttling and core temperature hits 95 C.
 

Crazydonkey

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The CPU clock does throttle a little when CPU reaches 95 degrees, but I think the dropping level shouldn't cause a serious performance drop. Your CPU can still reach 3.5~4 GHz during the whole game which is pretty good. If you still would like to improve the throttling condition, I suggest you repaste the thermal grease/pad directly.
 

next3r

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try new configuration
40 ratio + under-volt

Bez názvu.jpg

not ideal ,.,.but still works in usable range
gpu is OK .,,.and now using -50mV undervolt on cpu
 

TyraelArch

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The CPU clock does throttle a little when CPU reaches 95 degrees, but I think the dropping level shouldn't cause a serious performance drop. Your CPU can still reach 3.5~4 GHz during the whole game which is pretty good. If you still would like to improve the throttling condition, I suggest you repaste the thermal grease/pad directly.
Yes, It is not horrible, but I expected to game without thermal throttling, should I not expect this as a customer? A new laptop thermal throttling is normal?

try new configuration
40 ratio + under-volt

View attachment 153691

not ideal ,.,.but still works in usable range
gpu is OK .,,.and now using -50mV undervolt on cpu
Limiting the ratio to 40 would be capping the CPU performance. I really dont want to do that, I want to improve difference in core temperatures and be able to run without thermal throttling.

Would a replacement of thermal interface material improve this situation? Compared to stock paste that MSI factories use, can it improve? What about mounting pressure in the heatsing/dies, that should explain some of the core temperature differences, right?

Which thermal paste should I use?
 

orisos12b902b4

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Yes, It is not horrible, but I expected to game without thermal throttling, should I not expect this as a customer? A new laptop thermal throttling is normal?



Limiting the ratio to 40 would be capping the CPU performance. I really dont want to do that, I want to improve difference in core temperatures and be able to run without thermal throttling.

Would a replacement of thermal interface material improve this situation? Compared to stock paste that MSI factories use, can it improve? What about mounting pressure in the heatsing/dies, that should explain some of the core temperature differences, right?

Which thermal paste should I use?
I actually have a customer's laptop in right now which is the exact same model as yours, and it's in for the same reason. We ended up repasting it and saw a cessation of the thermal throttling issue, accompanied by an idle temperature drop of about 15 degrees Celsius, with a load temperature drop of about 10 degrees Celsius. This is a bit Misrepresentative of the actual change since it wasn't boosting fully before and was hitting 100 degrees and throttling. Mind you, we're still seeing about a 10 degree difference between core 2 and core 3. If I had to guess, I would say that the tripod Style screw mounting solution for the heat sink is providing uneven pressure to the CPU die. I used to see this in Alienware Laptops a lot, and sometimes adding a washer to one of the screws to tighten up the pressure a little more would fix it, though I would say that you might want to be careful about doing that since you could damage something by over tightening it. Regarding the thermal compound, we used Arctic mx-4, but we also sometimes use cryonaut.
 

TyraelArch

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I actually have a customer's laptop in right now which is the exact same model as yours, and it's in for the same reason. We ended up repasting it and saw a cessation of the thermal throttling issue, accompanied by an idle temperature drop of about 15 degrees Celsius, with a load temperature drop of about 10 degrees Celsius. This is a bit Misrepresentative of the actual change since it wasn't boosting fully before and was hitting 100 degrees and throttling. Mind you, we're still seeing about a 10 degree difference between core 2 and core 3. If I had to guess, I would say that the tripod Style screw mounting solution for the heat sink is providing uneven pressure to the CPU die. I used to see this in Alienware Laptops a lot, and sometimes adding a washer to one of the screws to tighten up the pressure a little more would fix it, though I would say that you might want to be careful about doing that since you could damage something by over tightening it. Regarding the thermal compound, we used Arctic mx-4, but we also sometimes use cryonaut.
How was the factory thermal paste application? Was it good? Was the thermal paste solid as rock or still viscous?
 

next3r

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Yes, It is not horrible, but I expected to game without thermal throttling, should I not expect this as a customer? A new laptop thermal throttling is normal?



Limiting the ratio to 40 would be capping the CPU performance. I really dont want to do that, I want to improve difference in core temperatures and be able to run without thermal throttling.

Would a replacement of thermal interface material improve this situation? Compared to stock paste that MSI factories use, can it improve? What about mounting pressure in the heatsing/dies, that should explain some of the core temperature differences, right?

Which thermal paste should I use?
your is limited ,,.now dropping on 35ratio // low usage :rolleyes:
40 ratio + undervolt + full fan

edit .,.edit around 40w or 1V - is your current cooling option
good luck
 
Last edited:

TyraelArch

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your is limited ,,.now dropping on 35ratio // low usage :rolleyes:
40 ratio + undervolt + full fan

edit .,.edit around 40w or 1V - is your current cooling option
good luck
I will repaste to see what happens, already bought high quality thermal paste...
Really sad that this is necessary with a MSI product.
 
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