I've now had two of these, and both have now spontaneously quit working. They will not turn on with or without the battery or charger. I opened up the first one, but did not find a separate charging board, so I assume both mother boards are gone. I obviously now have all the RAM and SSD's I need, but I'm wary of getting a third. Can anyone comment about their experiences with this model? Are failures rare, or have these just come to the end of their designed life? Is there a more reliable 17" model that is Linux compatible and has space for backup drives? Any suggestions are welcome, and thanks in advance.