questionsdell xps one 27... doa. nothing happens when…

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swap out the power supply? call dell support?

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http://www.youtube.com/watch?v=hz8nmF3mZq8 not power supply here.
Ouch it is an all in one. Does it have any fans?
If it has fans and they do not move it maybe power.
Chapter 13 is power supply replacement.
http://support.dell.com/support/edocs/systems/xpsone2710/en/OM/XPS_One_2710_OM.pdf

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Change plug-ins(receptacles).