I bought a Dell XPS 15 laptop with i7 6770 processor 1 TB SSD hard-drive and 32 GB of RAM a few months ago. I've recently started to have problems where it will suddenly shut down and then begin trying to turn itself back on again unsuccessfully. The power light comes on and I hear the computer 'revving' and then it shuts off and then tries to restart again. To stop this process I have to hold the power button when it is lit until I hear a super-rev and it shuts off. When I then go to restart the computer I am taken through the troubleshoot tests. The laptop passes the hardware test and tells me I have no problems with the hardware. Sometimes the computer then restarts okay. Other times I get to my login screen and the computer crashes again.
When I contacted Dell about the problem that had me reinstall Windows 10 Pro. After that reinstall I didn't encounter the problem for about two weeks (but I was also using the laptop less intensively then). The problem has now returned. I am using the computer at this moment, but I don't know whether it will suddenly shut off.
Does anyone have suggestions on what the issue might be? I read somewhere that it might be an overheating problem, but I'm not sure how to diagnose that issue. I did just adjust my Processor Power Settings and reduced the maximum from 100% to 99%. Time will tell whether that works.