Dell latitude E6420....sudden power on and off. problem

[razu]

Hy all met

I have Dell latitude e6420....

Problem : sometimes its on and ok, or sometimes its can not on.....

3V and 5V are ok..........

Where can I check......laptop mother board

[mcplslg123]

Re: Dell latitude E6420....sudden power on and off. problem

have you flashed bios??

[razu]

Re: Dell latitude E6420....sudden power on and off. problem

yes on dell website

[mcplslg123]

Re: Dell latitude E6420....sudden power on and off. problem

you can try a mild reflow of the whole mb