This is a faulty-memory error.  Since the memory isn't replaceable on this model, you'll need a system board replacement. [URL]  
Hi, my xps 13 has stopped booting. When I attach power cable and I try to boot up the power light blinks 5 times with white light and 2 times orange and cycles with combination of white and orange light. I have tried the following: 1. removed the battery and CMOs and pressed the power button for 15 seconds. 2. attached ac power and kept power button down for 30 seconds nothing has worked… anyone can suggest anything?   thanks Sid
Not starting up - power lights blinking