turns off

I have a Dell XPS 12 9q33 laptop that arrived in a state where it will shut off after a minute or two when there is no AC adapter plugged in. The battery was supposedly fine according to diagnostics, but after some research I came to the conclusion that one of the cells was dead and that's what...

I have a sony vio and the fan never turns off or gets silence.. its allways noisy and the computer turns off.. if i run any program the fan turns really noisy and the computer turns off. Anyone knows the solution for this? ive tried everything.. restored it.. bought a new processor, and still...