Power Limit Throttling issue

[Elfire97]

Hi guys, I need some help. I was playing Skyrim when I noticed sudden heavy fps drops from 60fps to 20fps, even 10fps. The fps drop lasted more or less 10 seconds and it happened once every 5 minutes of gameplay. Temps were normal, not above 70 degrees (average 60 degrees) so this can’t be thermal throttling. Thanks to RivaTuner/Afterburner I’ve also found out that during the sudden fps drop, my CPU downclocked to 800MHz. So I ran a stress test (see  screenshot, the white circle corresponds to the 800MHz downclock in the graph) with intel XTU and discovered that after few mins my CPU clock dropped to 800MHz (exactly like it happened in-game) when power limit throttling kicked in. 

How can I solve this? The fps drop is very annoying and it happens even with Minecraft...

Currently my CPU is undervolted -140mV stable.,.can someone explain me if undervolting has any effect on power limit throttling and if yes,how?

My PC is a notebook Asus ROG GL502VS i7-7700HQ + GTX 1070 version. Windows 10 Home x64. This problem makes it feel worthless having spent so much money in this machine  

 

P.S. I’ve already set the Performance profile on Windows battery settings.

[TheBean]

check if fans are spinning well. check fan profile. if you are willing to open up the laptop i suggest these 2 potential solutions:

1. how old is the laptop? if it >1 year old, replace the termal paste. if it dries up, you will encounter this issue.
2. check if the screws that hold the fan to the heatsink are tight. (this has a very low chance)

I have a old laptop with this exact issue except it is low power components which makes it weirder... in mine, it wont just throttle to 800mhz, it will power off in 15 minutes due to overheating. never diagnosed it and I have tried everything. 

[Elfire97]

8 hours ago, Saksham said:

check if fans are spinning well. check fan profile. if you are willing to open up the laptop i suggest these 2 potential solutions:

1. how old is the laptop? if it >1 year old, replace the termal paste. if it dries up, you will encounter this issue.
2. check if the screws that hold the fan to the heatsink are tight. (this has a very low chance)

I have a old laptop with this exact issue except it is low power components which makes it weirder... in mine, it wont just throttle to 800mhz, it will power off in 15 minutes due to overheating. never diagnosed it and I have tried everything. 

Fans are ok, they spin regularly up to 4100rpm (I tried to set the speed manually with Turbo Boost). The Thermal paste is Arctic MX-4 put just few months ago. Screws are looking fine to me, they won't tighten more. 

Anyways I believe your problem was a Thermal throttling issue which is not my case. I'm dealing with power throttling issue at less than 70°C where Thermal throttling doesn't kick in. 

 

[TheBean]

are you using a different adapter? what is the wattage rating on the adapter?