I think the bearinga in the fan wore out and it was getting pretty noisy. I could have lived with that, bit the computer was overheating and shutting down in the summer.
It was pretty obvious, it is frightening to open the housing first. Patience is key, there are small wires which I guess are really easy to break. Thankfully popping off the wireless antenna is the only thing that happened what I did not want.
If you order to Hungary, be prepared to pay the VAT (calculated with price including shipping) in cash to the courier (no, card and money wire are not accepted) and a nice FedEx “tax”, ca. 12$ for participating in the whole customs process, and if you don’t answer fasz enough they also charge you for storing your stuff, the prive of which I forgot, but again a few dollars per day.