XPS 15 9560 not booting

I have an XPS 15 9560 that I've had just over a year (yeah a month out of warranty :Angry:) when all of a sudden yesterday it wouldn't boot.  With the AC adapter plugged in, when I pushed the power button, the light on the power button would turn white for 3 or so seconds and then go off and then strangely, the light on the AC adapter plug would also go out (nothing would ever appear on the screen).  The light on the adapter would not come back on until I unplugged the AC adapter from the wall and plugged it back in.  The battery is fully charged. I guess I repeated that sequence of trying to get it to boot a couple times when pretty consistently the light in front of the track pad would flash one white and three amber which I guess indicates the CMOS battery was bad (which I find kind of hard to believe).  Other posts I saw indicated that taking the bottom panel off, unplugging the battery, pushing the power button for 20 seconds, reconnecting the battery and plugging the laptop back in would help. 

I pulled the back panel off, unplugged the battery, pushed the power button for 20 seconds and reconnected the battery. However when I plugged the AC adapter and pushed the power button, something on the motherboard fried.  

 However, when I put the base cover back on, the system booted fine in both Ubuntu and Windows 10. I booted into the onboard hardware diagnostics and ran them, and the only problem reported was

 however in windows I can adjust the screen brightness just fine.  The battery appears to charge fine when it's plugged in (no problems with the AC adapter).  

I guess I'm trying to figure out what to do next.  All of the hardware diagnostics (with the exception of the screen brightness test) pass fine and the component that fried seems to be in a weird location to affect screen brightness.  In the 30 mins or so since it's been booted, it seems to be working fine.  Can anyone tell from the picture what that part on the motherboard is?  Apparently I can still renew my warranty (if I did would it cover this?)  I guess it's just frustrating that it's literally a month out of warranty. Argh. 

Thanks