A tap is a mechanical shock to the system; in addition to the possibility of a loose connector or broken circuit board, it may be that the heads on the hard drive are stuck or even that the spindle is not rotating.
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Hardware issue - Hp laptop dv4200
My dying hp is making me smile. To boot it up i have give it some taps between the mouse and the keyboard.. After that i can see a led of the wirelless and then everything is normal. If i do not do any tapping the screen is black, led of wirelles is off and the system does not boot. It seems like i have to wake it up with tapping:)
Now my question is what is the reason that tapping it make it alive?
ps: some months ago the usb hub got corrupted so now I do not have any usb port and neither bluetooth
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Answers
You do not have hybernation settings on in Windows, do you? It sound like the system is in standby or hibernate and you are 'activating' the screen when tapping on mouse and/or keyboard.
In Display properties>Screen Saver - under Monitor power>select the Power button. Select Advanced. Make sure to have the system Shut down When you press the power button (and not go into standby). On the hibernate tab, deselect Enable Hibernation. Also, while you are in there, turn the power schemes setting to never for moitor, hard disks and system standby.
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by: MASQUERAIDPosted on 2009-09-25 at 11:23:14ID: 25425736
Without wanting to be accused of stating the obvious it sounds like you have a loose connection under there
If you want to risk taking it apart this is how to do it:
http://h10032.www1.hp.com/
However if it isn't a plug or wire that has worked loose and turns out to be a fracture in a printed circuit board this might make things worse!