I have an Alienware M17xr3 laptop. It tries to reboot when my adapter is plugged in. When I run in safe mode you can see that the adapter does charge the battery. Can't play games just on the battery. I've flip-flopped my RAM sticks (4- 8gb Vengeance) into different spots to see if thet're bad, & it still has same problem. Could it be the adapter even the it does charge the battery, or maybe the motherboard? I did a diagnostic on Dell's website & the motherboard test passed. Any ideas?