Laptop ovearheating

[HiTZone]

Hello.

I have a Dell Inspiron 7570 laptop, with an Intel i7-8550U processor. I didn't bought it for gaming initially, but i thought that it would handle no problem some light games from time to time considering the specs of it (the specs are listed at the end of the topic).

I noticed the idle temperatures around 60 degress Celsius and on load even up to 100 degrees at the begining, just when i bought it. It didn't bothered me that much because as i said it wasn't for gaming.
I tried, however, repasting the thermal compound on the CPU and GPU. It didn't really do anything, same temps. I tried to disable the dedicated GPU and use only the integrated one, so it wouldn't produce any heat, but no luck. I undervolted my CPU after this with -0.120V and it was stable, the idle temperatures dropped from 60s to 50s, but anyway they're always mostly between 45-55 degrees. The under-load temps still did not change in any manner. 

The thermal compound that i used is not the best but considering that it should be at least ok, i can hardly see the problem with that (and yes i did apply it correctly).

I've ran out of ideas, what should i do further? I really don't want to get a cooling pad or something like that and to me it seems like something is not quite okay about the behavior of the CPU mostly because the temperatures are suddenly going up and down like it's 48C now and it can go up to 99C without actualy doing something really intense. These values are not constant, they do change suddenly from a second to another. 

P.S: It seems that when the laptop is plugged in and not charging (a feature to avoid using the battery when not necessary) or whatever, it's plugged in, the idle temperatures raise from 40s to 50s or even 60s.

 

The relevant specs of the Dell Inspiron 7570: 
- Intel 8th gen i7-8550U

- 8GB RAM

- nvidia 940MX

I attached some pics about idle and stress test with and without the plug and one internal image of the laptop.

 

- Not plugged in, idle:

 

- Not plugged in, stress test:

 

- Plugged in, idle:

 

- Plugged in, stress test:

 

- Internal: 

[Electronics Wizardy]

Those temps are fine and won't hurt the system at all. The new quad cores run hot and thats normal.

[HiTZone]

I'm not actually worried about the temps, but about those sudden temperature changes. In a game like Fortnite i can't get anything playable. I have 40-50fps and drops to 10fps when i guess it's throttling. 

[genexis_x]

6 hours ago, HiTZone said:

idle temperatures around 60 degress

Kaby Lake Refresh CPUs do run hot but this is abnormal. RMA it.

[Theguywhobea]

What kind of surface do you use it on? Do you have the back propped up a bit?

[NelizMastr]

20 hours ago, HiTZone said:

I'm not actually worried about the temps, but about those sudden temperature changes. In a game like Fortnite i can't get anything playable. I have 40-50fps and drops to 10fps when i guess it's throttling. 

The 940MX isn't a high end GPU by any stretch, so don't assume it's all because of throttling. The cooler does appear rather weak, though.

[HiTZone]

On 3/1/2018 at 5:51 PM, NelizMastr said:

The 940MX isn't a high end GPU by any stretch, so don't assume it's all because of throttling. The cooler does appear rather weak, though.

other reviews with the same specs and/or without any dedicated gpu they get way better performance ( ex. Fortnite 54 fps avg)

On 3/1/2018 at 5:30 PM, Theguywhobea said:

What kind of surface do you use it on? Do you have the back propped up a bit?

The surface is a desk, didn't tilted it upwards, will try but the actual airflow does make it out, don't know if it will make a difference.

[NelizMastr]

15 hours ago, HiTZone said:

other reviews with the same specs and/or without any dedicated gpu they get way better performance ( ex. Fortnite 54 fps avg)

The surface is a desk, didn't tilted it upwards, will try but the actual airflow does make it out, don't know if it will make a difference.

Here's a good example of what it can do:

 

https://www.notebookcheck.net/NVIDIA-GeForce-940MX.156033.0.html

 

If you set your settings to low, you can expect a decent framerate around 60 ish. If you  high @ 1080p it'll choke.