Laptop shutting down while gaming, PCH overheating at 100°C in Predator PH315-53

Donut2024

My laptop (Predator PH315-53, i7, GTX 1660 ti) randomly shuts down while playing intense games (PUBG mostly), this happened multiple times in the last few months. I have this laptop for two and a half years now, and it never happened before.

When I checked Hardware Info after restarting, I saw that my PCH (CML QX50_CMS) had reached a maximum temperature of 100 °C and that my ACPI. PredatorSense showed a system temperature of 95 °C. My CPU was also overheating at 85 °C. My GPU was at 75 °C.

I read somewhere online that I may have a faulty motherboard. I would like to know if I can lower my temperatures, by maybe putting a thermal pad on my PCH if possible. Or is there a bigger problem I have to worry about?

Thanks for your help

[Edited the thread to add model number to the title and to add issue detail]

Puraw

https://community.acer.com/en/discussion/700824/laptop-shutting-down-while-gaming-pch-overheating-at-100-c

I recommend bringing the laptop to Acer Services in your country to clean the fans and thermal repasting/pads.

Stephenjp13

https://community.acer.com/en/discussion/comment/1260468#Comment_1260468

repasting and fans will not do anything. Yeah it will "help" temporarily but its just going to be a rinse and repeat. ACER needs to unlock undervolting in BIOS. That is literally the only thing that will help to lower temps. Why do you think ASUS, LEGION, and every other brand out there do not experience these problems?

simple, they ask online and learn to undervolt and bam fixed… Shame on acer for locking the undervolts in the BIOS.

Donut2024

https://community.acer.com/en/discussion/comment/1260484#Comment_1260484

So learning how to use ThrottleStop wouldn't change a thing?

AnhEZ28

@Donut2024

If you don't use the ethernet connection, you can disable the ethernet driver to reduce the stress on the PCH chip. Or add a heatsink on top of the PCH chip.

Stephenjp13

mostly you are correct yes. Yeah you still can change your tdp long and short shift but that is not very efficient as you will be lowering performance by alot to decrease temps, totally not worth it.

Undervolting actually decreases temps and raises performance in most cases.. If you still have a chance to return your acer do it and run away from acer while you still have a chance. Undervolting is a must these days. There is absolutely no reason ACER had to lock undervolting in their BIOS.