(Redirected) Alienware 14 killing chargers...

Hello, good day, my 2 years old Alienware 14 original charger had die, it just went pop-ed while playing game, then I went ahead and bought another genuine 19.5v 7.7a charger, 10 minutes into the game the charger shut off, so my game loses fps and it ran on battery mode, I couldn't switch on the charger so I unplugged it, 30 minutes later I plugged it in and the charger somehow came back alive, and around 10 minutes into the game it exploded, this time my whole room smell like chit and there goes $60.. 

Just earlier today I visited my local computer store again, bought another 19.5v 7.7a charger, this time I've spend $40 for a compatible one, the charger have a Dell logo on it and it's like twice the size, and this one turned itself off 5 minutes into the game, I learned that it is some kind of thermal cutoff thingy during overheating. One hour later I can use the adaptor again, this time I have a feeling that it going to blow up again, I suspected the battery might be the culprit and proceed to remove the battery from the laptop and run the laptop without the battery, it ran fine, until 8 minutes into the game it exploded again LOL..

What is happening :emotion-7:, that smell after the charger went.. I think it is overheating, must be the laptop draws too much power and the adaptor couldn't held up. I wouldn't waste my money getting another one, I know same thing going to happen, anyone else experienced this? I removed the cover of the first charger and found a small resistor has fried.

Feels like it is the end if you ask me, what else could have went wrong. It's not the battery, I think it is the motherboard..:emotion-18:

Sorry, my english is poor.