hello i have Dell inspiron 15(3537)for like one year ... and lately when i restart or shut down lap top or open new program game ( when the lep top is idle ) the fan( i think becauseit is coming from that area) is making a sund like krrrr ( i don't know how to describe it , like when u scratch something made of plastic) it is like 1 sec and then fan is working normally... before 1-2 month it was like 1-2 per day now like everytime when i leave lap top and after some 10-15 i open something like chrome it start that short krr sound and then fan is working normaly( like when i bought) i still have 1 year warranty but sometimes the lep top does not make this sound so i dont know if guys from shop will belive me plus the lap top is working fine no overheating or other problems ... so can u help me with any advice what to do to wait something to happen to instal some program or something? thx.... and sorry for bad english