I asked for a "pine apple ice". Not till yesterday did I find out that all heat sinks that is cylindrical are now called that name. I suspect it is a no brand imitation, because some on the market all labeled "ThermalTake" while mine isn't. Is ThermalTake a good brand?
Yes spiral. Or concentric circles I can't tell. At least the bottom is not smooth. It also comes with a small packet of white "tooth paste like" paste. I don't know whether I should trust it anymore, because I feel that after it gets dry I saw white powders among the paste.
One related question: is the "conduction gel" (those clear gel in a syringe) sticky or not? That is if I use them would I have problems separating the heat sink from the CPU in the future?