Unfortunately this Cooler Master cooler isn't any better at cooling a laptop internally than simply using nothing at all. Regardless of the type of surface it is used on, the NotePal P1 offered no benefit to system cooling performance. In fact, the charts show that internal temperatures actually went up a degree in some cases after the NotePal was placed under the laptop. This is not to say that the NotePal actually made cooling worse, but that more than likely the maximum load temp had not quite been reached during the stock test.
What the NotePal is capable of doing however is significantly reducing the temperature of the bottom of the laptop case. To the untrained user merely feeling the bottom of the notebook, they may come to the conclusion that the cooler is actually reducing the system operating temperature simply because it is not nearly as warm. But laptops are not designed to cool internal components through the bottom of the case. Most have heatpipes and vents on the rear or sides, and also rely on some radiation up through the keyboard. If there were vents or heatsink fins extended down through the bottom then blowing air over them might be of some benefit. But being as there isn't, the most the NotePal (or any similar notebook cooler design) can do is cool down the outside temperature of the plastic case.
I wouldn't exactly call a laptop cooler completely useless however. During the lap temperature tests I did notice that the NotePal significantly reduced the external case temp enough such that it was much more comfortable to use the notebook on my lap for an extended period of time. This was a much appreciated side effect that is beneficial enough I will probably keep the NotePal around for just that purpose. The small size, light weight and ease of use makes it convenient enough to take on the go. As for price, at the time of review I was unable to find an online retailer that carried the NotePal P1, although you can still find the original NotePal for around $35. Potential buyers will have to decide how much keeping their lap happy is worth to them.
Compatible with most any laptop
Reduces bottom surface temp, lap friendly!
No noticeable benefit to system cooling
While I can't give the NotePal P1 any awards, it does have some limited usefulness. Thanks to Cooler Master for providing the NotePal P1 laptop cooler for review.