Hi guys, I have bought an Inspiron 7570, with the new i-7 8-th generation processors, a few weeks ago. From the moment i have trun this laptop on I noticed some "buzzing" noise coming from the processors... So i have contacted Dell and they decided to sobstitute my motherboard... but the problem was still there so I've sent another email and they finally called me back... The support told me that the COIL WHINE was a problem they have encountered in ALL the Inspiron 7570 with the i-7 processors and said that even replacing the laptop will not resolve the issue and to WAIT FOR BIOS UPDATE OR SOME KIND OF MOTHERBOARD UPDATE (this is the most absurd thing i have ever heard) .... What are your suggestions ? Should I have to pretend the sobstitution of the entire laptop ? Has anyone encountered the same issues ?