Yeah the Alienware 17 R2 with 980M was and is a mess still, I have a 180W power adapter because was no option for one bigger, if you play a heavy game the power adapter go mute, when playing and power adapter gone mute it needed to re enter the power adapter into the wall to restart it, that kill two batteries till now, I change the batter one year after I bought it, the second last the same amount of time like the first one and give up changing it.
My bass speaker never worked, even the driver does not recognize that have 2.1, it detects it as 2.0, the speaker is there and wired but is silent :), I don't service it because I bought it in EU from US, was not available in EU at that time.
The USB ports are a mess as well due to a Intel bug in the USB hardware core IP.
The thermals were a mess as well.
I bought it in 2015, has 8 years and still works, the good side is that has support for five hard driver, one 2.5 inch and four M.2, is good as a UnRaid server at his age, I run it with 3% battery life :))), is like a server with a small UPS attached.