Dell Inspiron Turns off automatically after 2-3 minutes

Proshant9

Estimable
Aug 10, 2015
1
0
4,510
My Dell Inspiron 1545 turns off after every 2-3 minutes. To solve this issue I opened and cleaned all parts except display. The problem is not solved. I know the fan is not working properly for few(6-7) months but there was no problem either. The problem started few days back. When I turn on laptop, fan starts for like 10 seconds then stops and system starts normally, there is no lag and everything goes fine for few minutes and then automatically screen and system goes off. Note: I am using laptop in cool environment. What can be the problem?
I can hardly feel any temperature changes during this procedure.
One more thing, when I start laptop after long time it works for 5 minutes then if I immediately turn it on again it lasts for 1 min. After that it cannot even start properly then I have to wait for hours to turn it on.
Battery of my laptop is working properly. The same thing is happening while plugged in and on battery power.
 

AZAR UDDIN

Estimable
Aug 18, 2015
1
0
4,510