I just finished build my new computer 1st time building one. I have a i7 4790k with a water cool loop xspc rx240. When i turned on my comp and went to ROG bios it says that my cpu is running at 4.0 ghz with a temp of 30-32 idle. Is that safe or what? I did use the thermal paste that came with the xspc. Now im thinking if i should buy arctic silver 5. Loop still have little bit of air. Mobo i have is asus Hero vii. Fan i used for the rad are the stock ones that came with the kit.