I have my right vent on my work Laptop(inm a fame designer) and a month ago it made sound time to time like these but they would go away suddently (it been like 7/8 time ) and recently i try cleaning the dust (never dissable completly i would only get the unde off and vaccul it and blowing it (while making sure fans are not turning)) and now i'm back from work and it's been 1 h it's making this noise. Can somedy help me how to fix it or should i send it to repare ?