So I made a thread today about the new mining rig im building, but also that I am mining on my 2 gaming computers currently, my desktop 1080 and laptop 1060. People advised against using the laptop and normally I would agree as the first gaming laptop I owned got to the low 90s on the gpu, it was so bad I actually returned it to amazon lol. This current laptop however runs the gpu at an impressively cool 68-70c even with a high overclock (+125 core, +425 memory). Someone mentioned undervolting but I think it should be fine if the temps are good. correct me if im wrong lol
If fans are running at 100%, or close to 100%, it won't last long. Laptop fans are typically much smaller than the fans on desktop graphics cards, so in order to achieve similar airflow, they must spin at higher RPMs. This causes additional wear.
Laptops were not meant to be pegged 24/7. Removing it from the case and adding your own fan setup could make it a better plan, but I doubt it's worth it.
In general, if you have a laptop that's recent enough to offer a reasonable hashrate, and you don't mind gradually ruining it by mining, it's better to sell the laptop and put the money towards a real rig, or put it into coins.