North bridge chip heat sink is generally a buckle, the card on the motherboard, if there is a buckle, buy silicone grease, no buckle is directly glued on, you have to buy silicone, silicone grease will dry for a long time, dry without viscosity, good thermal conductivity.
The radiator silicone gel is like glue, it will dry in about a day, and it will stick the heat sink tightly!