Alright so I have a dell inspiron 2 in 1 700 series. It currently turns on and gets to the dell logo before turning itself off making a little clicking sound. All the lights do come on when she starts up. It started doing this about a month ago. I replaced the CMO battery. Removed the battery. And bought a new power cord. Nothing work. Last week she started up just fine out of the blue. I was able to run a diagnostic test and everything came out fine. Came home today and tried to turn her on and she's doing the same thing she was doing a couple days ago. I can't press f12 or f2 or f8 because she won't stay on long enough past the dell screen to get anywhere. What could be wrong?