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Random Poweroffs


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#1 soubuckeye

soubuckeye

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Posted 18 January 2016 - 02:25 PM

So, back in 2014 I had the following issues with my Dell Inspiron 5520:

http://www.bleepingcomputer.com/forums/t/542050/dell-inspirion-5520/page-2#entry3462727

 

As you can tell from the thread, it ended up being the power board.  Fast forward to a few months ago, with very reliable use and I started having the shutdown problems once again.  Having seen this movie before, I ordered a new power button board.  Replaced it, and no love... still the same problems.  Chalked it up to possibly getting a lemon out of the box (having to order what are likely cannibalized parts off of eBay), so I ordered another one.  This time, along with the charging port and wiring just to be sure there was not a short in the wire.  Still... Having the same issues.  Once again, I do not believe this to be a battery issue because the symptoms can appear when the machine is without a battery, on battery with no AC adapter, battery and AC adapter plugged in, etc.

 

Are there any other things that could possibly cause a random power-off besides what I've already replaced or eliminated?  For example, could there be an issue with the power going to the LCD display, causing a short or other electrical fault that makes the system shut off?  Perhaps the same thing with the keyboard?

 

I really would love to fix this problem once and for all, as my family is adding another baby soon so a new laptop is not in the family budget!



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