Laptop cooling fan constantly on - Page 1. I do not think we know the exact cause of the problem. However I think it is the result from a complex interaction among several factors, perhaps including the Display driver as well. Possible explanation for the findings reported so far by the affected users: 1. When the laptop is turned on or resumes from sleep, fan is automatically set to be on, at about 5. When CPU (and GPU) temperature increases above certain thresholds encoded in the embedded controler/BIOS, fan speed controlling software responds appropriately by increasing fan speed to medium (7. When CPU (and GPU) temperature decreases to values below a certain threshold (approx. Celsius) the fan turns OFF and for some unknown reason the automatic fan speed modulation is also disabled. Since now there is no longer a constant airflow next to the CPU/GPU their temperature progressively increases (even with the computer . When the CPU or the GPU becomes so hot that overheating is imminent a backup / rescue circuit (hardware- based?) . Product information: Sentry LX LCD Fan Controller NZXT, a company built on realizing the dreams of gamers worldwide, is proud to announce the Sentry LX, a high. Unfortunately, Speed Fan doesn’t always accommodate the specialised hardware you often find in a notebook — that’s where Notebook Fan Control, or. Only when the fan speed control and/or auto- regulation is reset by some specific kinds of user actions (e. If you have Middleton's patch installed, then the fan is never allowed to stop (speed zero), and consequently the fan speed auto- regulation remains always active. One feature shared by the majority of the affected laptops, besides being AMD- based, is that they run Windows seven as their OS. So whatever the cause of this problem is, it should be somehow related to the way Windows 7 acpi or Windows 7 specific device drivers interoperate with the temperature sensors and/or cooling fan embedded controller code. Another feature of many of the affected laptops is that instead of having dedicated fans for the CPU and GPU, a single fan is shared by both CPU and GPU. It seems less likely to see this kind of problem when the GPU has its own fan, controlled by the graphics adapter driver and/or graphics adapter own BIOS/embedded controller. Finally the . I think most of us have more important things to do than keep on trying to find further fixes for this problem.. I think this will be my last post at this thread since I can't figure out anything more useful to contribute to it and I have already found a satisfactory workaround for the issue.
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December 2016
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