New Laptop Fan Grinding/rattling

i would suggest you rma it but because you opened it you will have voided the warranty.
there aint many parts in a lappy that will rattle, the fans, the hdd and maybe even the dvd player.
if its not the fans then its most likely the hdd.
 


yeah but do you think i even need the heat sink? the one i have seems perfectly fine to me.. whats your suggestion
 
like i said the fan will normaly be attached to a heatsync already if its a new part. if however you can dismount the fan without removing the full heat sync assembly then theres a good chance you can just buy the fan and replace that part only.
 

Correct, I wont be needing another heat sink then.