Latitude e6420 lights on,caps lock stays on and fan spins for 5-15 seconds then just turns off
Hello,i got a latitude e6420 and today i was trying to turn it on,it does this:power button lights on,the caps lock light stays on and fan spins for 5-15 seconds,no display and the pc just turns off. I've tried all solutions(disconnecting the bios battery,connecting it) but it gets worse when i plug the bios battery,it does another thing,power light stays on,caps lock light is off,fan spjns for 5 seconds and turns off with no led indicators. Also no display. Someone has a solution to it?