So I was playing left 4 dead 2 on my hp envy 15z j000 (a10 5700 and 8750m 2gb cfx w/ the onbaord graphics), laptop and the battery was at like 30%, so I hooked it up to a monitor and the charger. Previous to this I dissembled it and fully dusted it out. WOW was there a lot of dust. Like 5 or 6 of actual balls of dust, so got compressed air and FULLY cleaned it out. I played for a while and the thing was WAY quieter, and the fan sounded like a fan vs a hair dryer, and temps were 15c lower. Anyways, so in the middle, it randomly shuts off and the charger started beeping. Anyways, 2 weeks pass and I finally got around to it, so does this sound like only the charger is dead? The laptop was still pushing warm air so the fan wasn't dead, and the charger beeps whenever I plug it in. I got my laptop, and plugged in a charger that had the same type of plug but like 1/4 the power and it didn't charge, so couldn't confirm whether the laptop is alive. Anyways, I fully cleaned it now, does it sound like the charger is the only thing dead, and that I should buy a new one?