Hi,

I have Dell Inspiron P66F with i7 and Radeon graphics with no power issue but with green light on power adapter. I bought it just for repair learning purposes some time ago knowing it is faulty and no more details.
When I press power button, fan runs for a moment (1 second?) and stops. Similarly LED on button lights up only when button is pressed.

These are my measurements on board (LA-D801P rev 1.0) with every cable detached...
Resistances to ground on coils:
PL700 -> 1.7 MOhm
PL100 -> 7 kOhm
PL101 -> 42 kOhm
PL301 ->...