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the fan on the computer runs but the computer does not turn on
kknight419 , Below find a couple links that may help address your issue on your HP Touchsmart 300. If not leave the question open. Good luck. I hope this helped you out, if so let me know by pressing the helpful button. https://h30434.www3.hp.com/t5/Desktop-Vi… https://h30434.www3.hp.com/t5/Desktop-Vi…