Is this sound normal or is there something wrong with my K40?
Just sounds like the relay firing the laser
@Joseph_Midjette_Sr Is that bad?
No. Sound is completely normal, your laser is fine.
@ThantiK Oh ok. Cheers buddy 
Is this sound normal or is there something wrong with my K40?
Just sounds like the relay firing the laser
@Joseph_Midjette_Sr Is that bad?
No. Sound is completely normal, your laser is fine.
@ThantiK Oh ok. Cheers buddy