Noise coming from the fan in Lenovo G770 laptop

[MacKenna]

I have been using Lenovo G770 Laptop for my daily office use but from past three to four days I have been noticing that very bad sound is coming from the fan, so I would like to know what may be the reason for this and how can I fix the issue for the fan sound.

[Kork]

For this try updating with the BIOS in the Lenovo G770 laptop. And see after whether you have solved the issue or not.

[RidD]

According to me, if there is sound coming from the fan then I don’t think so updating the BIOS will benefit you. So for this what you need to do is that check through the ventilator that is there any dust or something stuck to the fan and if possible clean the inner part of the laptop with the low voltage blower which are available for the cleaning purpose specially designed for laptop. So Use blower and clean internally after that see whether noise is coming from the fan.

[MacKenna]

I tried with this and still the noise is coming from the fan. So what I want to know that should I show this to Lenovo support care as still laptop is in warranty.

[TamaraAce]

See after cleaning internally if still it is not able to solve the issue then it is better you call the Lenovo support care as you are saying that your laptop is on warranty then why you should try yourself solving the issue if it can be solved from the support care itself.