[SOLVED] Asus Vivobook S15 thermal throttling issues

[dhal277]

Hello, my friend bought this Vivobook S15 S530. It has an i5-8265U cpu and MX150 gpu. He wanted to play with Valheim, but his laptop is instantly thermal throttling after launching the game. The thermal limit for this laptop is 76°C and the idle temperature was around 70°C.

This is what I have done so far:

• I have replaced the thermal paste with MX4 , idle temps are around 60-65°C. I tried to use throttlestop - now turbo is disabled, all cores are on 2.4 GHz.
• I used MSI Afterburner to undervolt / downclock the GPU.
• I tried to lock the FPS around 30 to avoid stuttering or overheating the GPU, but its not working in Valheim. I tried it first with Rivatuner, than I locked the FPS in the Nvidia control panel as well.
• I removed the backplate of the laptop, to leave it open (cutout is small for the fan) but the temperature went up 75 after 2-3 min gaming

Any Idea what I can try? I also noticed that the cpu and gpu shares the same copper heatpipe and its quite thin in my opinion...
Is this idle temp normal for this i5?

 

[uWebb429]

In some laptops, MX4 will quickly pump out and within a week or so, the CPU temperatures will start going up and up. Noctua NT-H2 works well in laptops.

The thermal limit for this laptop is 76°C

What do you mean? The thermal limit for your Intel CPU is 100°C. If you are seeing throttling before this temperature, it is likely power limit throttling. These CPUs have a 15W TDP rating. If a laptop decides to enforce that power limit, the CPU will throttle like crazy. This is normal for these CPUs.

Turn on the Log File option in ThrottleStop and go play a game for at least 15 minutes. Turn on Nvidia GPU monitoring in the Options window before you start logging data. ThrottleStop will record temperatures and CPU performance along with any reasons for throttling. Attach a log file to your next post or copy and paste the data to

www.pastebin.com

Post lots of pictures of ThrottleStop if you need help.

Some laptop manufacturers leave the power limits unlocked so you can significantly increase performance of the low power 8th Gen U series. It is likely that Asus has locked the CPU down to 15W.