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Laptop will not start

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#1 Priista


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Posted 07 February 2014 - 01:55 PM

My 2 1/2 year old HP Pavilion DM4 running Windows 7 failed to start from sleep.  The behavior was two audible clicks about 3/4 of a second apart, the power light on the cover would come on during the 3/4 second interval, and that sequence would repeat every 5 seconds.   By putting my ear close to the exhaust vents I could hear the faint sound of a motor starting up during the 3/4 second period, but stopping at the end of that brief period.   The power button had no effect whatsoever.


Googling for a solution for a non-starting laptop I found a recommendation to discharge electrostatic electricity from the laptop.  Unfortunately that procedure required removing the battery which I was unable to do because the button on the cover securing the battery was broken. 


Since the laptop was powering-up momentarily every few seconds using-up battery power, I decided to unplug the power cord and let the battery discharge.  After about 48 hours I found the laptop completely dead, and pressing the power button had no effect.       


I plugged-in the power cord, waited a few seconds, pressed the power button, and Voila!, working laptop.  I restarted the machine, put it to sleep, put it in hibernation.  Operation resumed normally afterwards in every case.





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#2 zingo156


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Posted 07 February 2014 - 02:41 PM

I see this quite frequently, in a lot of cases, removing the battery and unplugging, then plugging back in will fix the issue. Since you could not remove the battery, running it completely dead seems to have a similar effect. Most of the time I saw this with batteries that were getting "older" and were not holding a full charge anymore. If it continues to happen frequently, I would recommend buying a new battery, make sure if you do buy a new battery to get a genuine HP, sometimes there are problems with generics.

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#3 Kilroy


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Posted 07 February 2014 - 02:46 PM

This is a common issue on HP laptops.  You may be good for another 2 1/2 years or it may happen again sooner.  I'd investigate a way to release the battery in case it happens again.  Since this is a consumer machine is is probably out of warranty, but if it is still within warranty I'd recommend having the battery release repaired.

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