My New CPU Cooler isnt working right

[Mr. Koaliti]

I recently got the Cooler Master Hyper N520 and replaced it with my stock cooler for my AMD FX 8320. My stock cooler was only cooling it down to about 65 degrees but my computer keeps shutting down because my CPU is overheating. I clearly did not install it correctly because t keeps shutting down but the fans on the cooler are spinning and I did put thermal paste on it so I am not sure what to do. Please help!

 

[BigBadBeef]

Did you follow the installation instructions to the letter?

 

[geofelt]

A common mistake is to use too much paste. Too much will act as an insulator and give you poor results.
A small drop will be sufficient. Heat and pressure will spread it.

Can you verify that the cooler fans are turning?

 

[dovah-chan]

Top 3 biggest beginner mistakes:

-too much paste
-too little paste
-cooler not mounted tightly enough/mounted incorrectly and not making proper contact with the package