With the 5600X processor and this cooler, I see 75 degrees of temperature. It just didn't seem normal to me. The paste I use is Coolermaster Mastergel Maker. What should I do? My case is Asus TUF GT501 White. It has good airflow.
Is the temperature you see at 75C when the system is under load?
If so then that is normal.
Ideal temps are 10-15c above ambient at idle and 65-75C under load.
Coolermaster Mastergel Maker is a good thermal paste of 11 W/mk.