#dell #inspiron #Inspiron3793 running #ubuntu has 17inch screen and cost 400 euros 3 years ago. I upgraded to 2 x 8 Gb RAM from the 1 x 8 Gb it came with. A total transformation of performance. Also fixed #DCsocket which was bad contact and replaced battery, though the latter seems not to have no effect. This video really helpful https://www.youtube.com/watch?v=6fAalD8ysx8
but need to be careful when separating case at locations where the case is thin e.g. at CD drive or ports. Cracked the case somewhat.