I have problems with hp notebook 510, or to be more precise - with its docking. I tried to install new DVD drive, but after that, PC won't turn on at all. Green and orage light on the docking are flashing. I can't remove PC from the docking. Cooler is working, but PC won't boot. I have tried with Reset button - still nothing. I have removed the DVD, and still nothing.
Oh, I should also mention this: PC booted once, but whithot detecting DVD. I turned it off. remove the DVD, put it back again, and then my problems started...
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