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White_Ninja
6 Indium

Re: Latitude 7490 Overheating

same issue here with the 7490.

 

Windows 10 

CPU intel i7

cpu used by 10-20% and noisy fan

 

bios is the latest. Any solution for this?

 

Is this a Windows 10 related issue? Since we have this on a lot of 7490

 

 

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8 Krypton

Re: Latitude 7490 Overheating

The problem has nothing to do with windows 10 but is related to the bad cooling system of this laptop.


There is no way to solve the problem (as it is caused by the hardware design).


You can however lower the fan noise by limiting the performance of the CPU (less noise, less heat, less performance).


I can say that I am really not happy with this laptop... But dell does not care as the laptop has already been paid.


Edit: I am using ThrottleStop software in order to address the fan noise issue, with the following modifications:
- disable SpeedStep (keep SpeedShift with a value of 128)
- lower the Turbo Ratio Limits in "FIVR" tab from 42 to 21 (yes, half of the maximum CPU frequency)
- lower the TDP in "TPL" tab : 22 needs to be lowered to 15, and 44 needs to be lowered to 25.

That way, I have no noise from the laptop, but that kills the performance.

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mo_123
1 Copper

Re: Latitude 7490 Overheating

Same issue 😞

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White_Ninja
6 Indium

Re: Latitude 7490 Overheating

hey i did the following and now my laptop isnt noisy anymore:

 

To disable compression Run as Administrator the program "WINDOWS POWERSHELL" and run the command "Disable-MMAgent -mc " . Then EXIT and REBOOT.

 

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Disable bios c-staes

 

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Disable Intel step

 

 

for now the TB16 is more noisy than the 7490 (10 days running with 10hours usage a day)

 

 

Tags (1)
mipow
1 Copper

Re: Latitude 7490 Overheating

Hi,

I'm experiencing the same kind of issue as lots of 7490 owners.

Here's my ThrottleStop parameters that give me an acceptable workaround (good balance between performance and temp/noise level) :

- On the main panel, Speed Shift - EPP checked with the value set to 128.

- On the FIVR panel, set turbo ratio limit to 31 for each active cores (max boost frequency limited to 3,1 GHz).

 

With that configuration, my cpu temp is most of the time around 50°C (cpu load under 40%). On heavy load, 100% cpu load during a period of thime,  it runs nearly 90°C and the fan is a bit loudy.

But my work rarely put my laptop on 100% cpu load on a long period so, when the load stops, the cpu temp quickly goes down to 50°C and the fan stops running fast...

Maybe an under voltage configuration could help on the load part, but I'm not relly concerned so...

 

Hope it helps.

Regards,

Antoine.

 

UPDATE : I played a little bit with under voltage on both CPU Core and CPU Cache (in FIVR panel) and set it to -50.8 mV and now I only reach 80°C in long running full charge treatment...

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ap012345
1 Nickel

Re: Latitude 7490 Overheating

same issue with 7480

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Kysuho
1 Copper

Re: Latitude 7490 Overheating

laptop_cooler.JPGKeep it simple

 

Hi Folks,

Try the following

 

regards

 

Cyril

 

 

 

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hamody2005
1 Copper

Re: Latitude 7490 Overheating

I have the same model 7490 (i7-8650U) , it's new 

it suffers from the same problem overheating and noisy fan.

all drivers are up to date.

is this problem in every 7490 laptop or some of them????

when dell will solve this issue????????????

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methedutch
1 Copper

Re: Latitude 7490 Overheating

Hi Raf,

Thanks for your ThrottleStop settings for the Dell 7490.

I have also purchased the Dell 7490 with i7 8650u processor and started playing with undervolting based on your values. Can I ask you for the complete settings you used to get the same rock solid performance you achieved please? Did you set any profiles etc? Have you changed the Speedshif EPP - TPL settings etc?

Thanks in advance for sharing the full settings.

Best regards,

metheDutch

 

 

 

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ParasianOmp
1 Copper

Re: Latitude 7490 Overheating

Just bought latitude 7490 with i7 8650 3 months ago and this problem exists most of the time. Nothing i can do. May be it was one of my worst decision in my life, switching from Thinkpad to Latitude. I will never ever buy any Dell. Good luck Dell!

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