Core Duo Notebook

I use a laptop to download data and the need to let it run the full download.

The laptop runs at 31 degrees Celsius while downloading (Core Temp).

Any increase in the degradation of CPU or laptop?

you can most certainly keep cool!

31 degrees Celsius is pretty cool. (No pun intended)

Not as long as the laptop has plenty of ventilation and air conditioning, it should not melt on you.

Yes I even try to run for five days non-stop with P7350, but cooler laptop!

no problem, even at 60 ° C, but you can turn off the screen. power management screen after 30 minutes ,.... something like that.