when I start the computer, it says "Fan error. Press F1 to resume or F2 for setup."
Pressing F1, I could work with the laptop. However, only after a few minutes, I hear the fan operating right away. Then the fan stops, and starts again after another few minutes.
The computer also slows down after some minutes' use. My diagnostics disk says that "The inner fan fails the test." So I guess I should replace the fan.