I usually use either a toothpick or a PCI slot cover from a case & spread just enough to cover the core with a thin layer. I wonder if I'm doing it correctly according to the HardwareSecrets guidelines?

"In case you don’t adopt a thermal solution compatible with the specific model of processor you use in your system, several problems can appear, such as random resets, freezes, reduction of processor lifespan, and it can even make the CPU burn, in extreme cases."