Question about Arctic Silver Thermopaste silver 5 (3.5g)

This is heat conductive paste. It is used to better conduct the heat from the CPU to the cooler.
This means: If you assemble a PC yourself, you smear a little of this paste on the processor and only then attach the cooler. This is the only way to ensure optimum cooling of the PC.
You can find more information on the Internet, e.g. on Wikipedia: https://de.wikipedia.org/wiki...