Dell XPS15 Can't control GPU fan speed

[roman700]

Hi

I have Dell XPS 15 9530 laptop. Recently after fixing another problem, the GPU fan runs constantly (possibly at max speed) from the moment I power on.

I've made various efforts to slow it, but not sure why. My usage is light, web browsing etc, nothing too complex.

I discovered this program and it seems that it might help, but I wonder if it doesn't work with my computer.

I click on the fan control icon and have a window with Fan1 Fan2 and Fan3. Fan2 is greyed out.

I think I can control the CPU fan via Fan1.

In Fan3, I can now select Sensor 1: Graphics card GPU#1 NVIDIA GeForce GT750M, but there are no options at all under Temperature Source 1. A bit stuck on what to do now.

Really want to turn this fan off or slow it and this could be by last hope!

Does anyone have any advice, please? I actually took the fan out at one stage but all that does is makes the computer beep five times on power on, indicating a worn CMOS battery!

Thanks

Christopher

 

[Martin]

The absence of sensors under the NVIDIA device is most probably because the GPU is switched off by Optimus technology to preserve power when not utilized.

 

[roman700]

Thanks Martin, and I appreciate the fast response also.

Does this mean I am stuck?!

 

[roman700]

Or maybe I should run a graphics heavy program (I have video editing software) to get the GPU going, and try again?

 

[Martin]

Sometimes just opening the NVIDIA Control Panel (showing a rotating NVIDIA logo) is sufficient to wake it up.
But since the GPU doesn't provide temperature data most of the time, you might use a different temperature source for fan control. In many notebooks the CPU and GPU are connected to the same heatpipe so the temperatures are similar.

 

[roman700]

Thanks Martin, that's actually useful in that I activated the sensor, but I can't seem to get that fan off or even slower.

I mentioned that your program picked up Fan1, Fan2, and Fan3, and that Fan2 is greyed out. I wonder if the fan in question is Fan2. Do you have any idea?

 

[Martin]

The only way is to try (use Set Manual) and see if the fan acts as expected.