One of the leading causes to early notebook retirement is a broken or loose power Jack.  If the jack where you plug in the adapter comes loose and is repeatedly used, it can lead to extensive damage that may not be limited to the jack itself.  Extended use of a damaged jack could damage both the motherboard and charging adapter.  So, if you've been wiggling your adapter to get your machine to take a charge, or if it's fallen out of its housing entirely, we can help.