I have same problem.
My laptop wont turn on, when i press power LED light turns on for 3sec with one beep and it will turn off again.
Thanks for writing to us.
When did the issue start?
Please disconnect battery and charger and hold down the power button for 10 sec . Then plug back everything and try again.
If still nogo, then please remove the memory modules and try with one module at a time. You can get the instructions from support.euro.dell.com--enter the tag#--submit--manuals..
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