It has been a long time that I'm suffering from fan noise issue. After, I've updated the bios to the latest version (A10) & I performed bios diagnostic, an error was displayed:
Error Code: 2000-0511
MSg fan: the fan failed to respond correctly.
What is strange, is the behaviour of the fan changes when the battery light is blinking, and it seems at time moment that the fan works correctly since the noise disappears remarkably.
Please, is the problem within the fan, have I to change it ?