XPS 9550 - undersized power adapter warning after BIOS upgrade

Discussion in 'Dell XPS and Studio XPS' started by mikolajek, May 15, 2017.

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  1. mikolajek

    mikolajek Notebook Enthusiast

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    I've just upgraded my XPS 9550's BIOS to 1.2.25.

    Imagine my surprise when after the reboot I've received a notification error explaining my power adapter was undersized and I needed to consider switching to a proper one. The thing is that I've been using the original power adapter shipped with my XPS and never used any other one!

    Is this a bug in the new BIOS or actually the power requirements of XPS 9550 have suddenly increased?
     
  2. GoNz0

    GoNz0 Notebook Prophet

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    If it is a one off then don't worry, if it is every time the signal wire may be broken needing a new PSU.
     
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