Hello Vikram

Thanks for writing to us. 

Please update the bios from support.euro.dell.com--enter the service tag#--submit--select drivers and downloads--choose operating system--install BIOS 

If the issue is still the same, we are looking at a faulty heatsink fan .

Do provide us your system tag#, email address and name via private message,by clicking on my name in blue and then select send a private message

Regards

Hi We are awaiting your response.