Rattle noise coming from fan

[lizard]

Hi,

my U58 fan makes a loud rattle noise whenever it is running.
I already updated the bios and was able to make the fan slower, but the rattle noise is still there.
Are there instructions for opening the pc and cleaning or replacing the fan? Thanks!

 

[Alliwava]

It might be that the fan is loose or has accumulated dust.
Please open the bottom cover of the computer so you can clean the fan directly.