But you isolate variables to make comparisons, so do it with the backlight off. Then add the backlight increase, but with a magnesium cover in stead of plastic, which would be needed for a re-design.
Room temperature air is going to be better cooling than a living person's legs, thermal grease or not. The top cover of a computer in this form factor all but always has better cooling than the bottom. If it's not on your lap, it's a very short distance from a tabletop, which isn't likely to be colder than air temperature.
Room temperature air is going to be better cooling than a living person's legs, thermal grease or not. The top cover of a computer in this form factor all but always has better cooling than the bottom. If it's not on your lap, it's a very short distance from a tabletop, which isn't likely to be colder than air temperature.