I have had my XPS 15 9560 for three years, and over those three years I have had my motherboard replaced twice for the exact same issue. The laptop randomly one day while charging displays a BIOS message that it cannot determine the wattage of the AC adapters power source, and that it may not charge. It then becomes impossible for me to charge the device until the motherboard is replaced. Now like clockwork just about exactly one year after my last replacement, it has happened again. Does anyone else have this issue with the XPS 15? I bought this laptop because it was supposed to be and extremely solid and reliable system for me to complete my undergraduate computer science degree, but it has proven to be one of the worst purchases I have ever made, and has cost me thousands on top of my rising tuition fees. There must be a better better solution than replacing the motherboard once a year...