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I have to underclock to run Overwatch. Am I doing it right?

post #1 of 2
Thread Starter 
So when I play overwatch, I discovered that the fps drops I experienced were due to my CPU thermal throttling itself.
I am on a laptop so my options for better cooling are limited. A solution to the thermal throttling was to underclock my cpu slightly and set my fans on high when i play. However, there was still a form of throttling happening that was NOT indicated as thermal throttling by the Intel© Extreme Tuning Utility. My CPU would go down to 1200mhz or so for an extended period of about 20-40 seconds and then back up again. This happened when my cpu was about 30°C below the point where it would thermal throttle itself.

I am thinking this is related to a heat sensor on the motherboard or some other component. The only working solution to this is to turn off speed step, turbo boost, turbo boost short power max, undervolt my cpu core by -50mv, and lock my fans on high while playing.

If any of you have any idea what is going on I would appreciate any advice. The game plays at high fps like this but it just sucks to have to reboot every time i want to play.

EDIT: My laptop model is an alienware 17 r2 with a 240w psu, 980M 4gb, i7-4720HQ, the laptop is elevated so that air can easily flow to the bottom intake and the whole situation is ideal for cool air to reach all parts of the laptop and not return to the intake from the out vents. The temps that the throttling NOT indicated as thermal throttling is happening at are around 70°C for the CPU and about 68°C for the GPU. When the problem happens my CPU package TDP is around 37w for the whole time I am playing.
Edited by openglcg - 8/3/16 at 11:28pm
post #2 of 2
You are unlikely to get any good advice without information such as, laptop model, temps, CPU model, surface you are playing on.
Give as much detail as possible.

The story behind the problem is good, but specific details are always king.
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