Dell tackles XPS 15 (9570) coil whine noise in new BIOS update

There are few things more annoying than coil whine – the high-pitched noise your laptop's processor can sometimes make when under heavy load – when you're sitting down to get some work done or gaming. But if you're using Dell's XPS 15 (9570), the days of coil whine may be behind you, if the laptop's latest BIOS update does the trick.

Dell this week began shipping out a new BIOS update (opens in new tab) for the XPS 15 that claims to "mitigate coil whine noise." It's possible that some may still remain under particularly heavy loads, but it will hopefully solve most issues that owners have been running into thus far.

In any case, if you've been gritting your teeth every time you hear that whine pierce through your ears, you can give the update a shot by grabbing it from Dell's driver download site now. Simply download the update file (opens in new tab) and run it from your desktop. The update utility will then shut your PC down, flash the BIOS, and then reboot back into Windows.

Dan Thorp-Lancaster

Dan Thorp-Lancaster is the former Editor-in-Chief of Windows Central. He began working with Windows Central, Android Central, and iMore as a news writer in 2014 and is obsessed with tech of all sorts. You can follow Dan on Twitter @DthorpL and Instagram @heyitsdtl

  • Okay - so after thinking I had updated to the latest bios and still got a little chirp of coil whine while booting into the OS, I went and checked - 1.3.0 was what dell support assist had decided was the latest for my machine when I updated this morning. Having been provided the link in the article, I went and downloaded it and just installed it. And the answer is ... the coil whine chirp I hear during boot is still present. Now, I've not heard much coil whine on this machine in general, so I may not be seeing the main impact of coil whine and thus an invalid machine to report back about, but in this case, no obvious change before or after.
  • Hi Simon What did you actually install. The new version needed is 1.3.1 to fix this issue.
    I don't have a coil whine issue AFAIK on a 5530 (precision version of XPS15) but it does drive me crazy how the fans keep spinning up and down. Either stay on or stay off. Don't come on for 10 seconds then go off again - it's super super distracting.