Predator Helios 300 PH315-52 Cpu Fan Speed don't increase when needed

DQX1212

Hello everyone, I have a question.
I have a Predator Helios 300 PH315-52, i7 with the GTX 1660it, for more than a year now, I bought this one in August 2019. Since September the fan is making a weird noise, sometimes goes away, sometimes is even louder. Like if you have something in the way of the blades. The sound is way louder on the CPU fan side. 

But my question is, on the Predator Sense while looking at the temperature is sitting between 60 to 70 Celsius, CPU fan speed is 2200 to 2350. If I go to custom I could increase the CPU speed. Since yesterday this is not possible anymore. The custom tab doesn't change the CPU fan speed only, the GPU fan speed is changing fine for now. 

Don't ask me to play some game to see the temp rising and the speeding going up, I was playing overwatch when I saw the speed on 2280rpm with CPU temp at 91. I stopped playing immediately because something is wrong.



I honestly don't know what is happening.
Tomorrow I will open it and try to clean it to see if it will resolve. But if anyone has another suggestion, I'm open to hearing them.

Thanks for your time.

DQX1212

Ok ok. Quick update. After a deep cleaning into the CPU Fan and put a little bit of lubricant oil the issue is gone, the predator sense is now controlling the speed correctly-ish. I think the max speed isn't what was before. In the future, I might need to get a new CPU fan to replace it.