Thanks for your prompt replies and suggestions!
I finished installing the OS yesterday. I must say I'm completely satisfied with the thermal performance. I see the frequency varies between 1.6 and 4.2 GHz depending on the load, and the CPU is able to sustain its boost clock (around 4.2 GHz) almost continuously under load.
After a bit of testing, I set all the fans to "silent mode" in BIOS.
Just a general overview of temps:
Idle: around 38-40 degrees, near silent.
4K playback: here I can hear the fans spinning up and down (the video's audio was muted), the temps stay between 50 and 60 degrees.
[USER=1019]@smitty2k1[/USER] : Thanks for your suggestion! I will look into tweaking the cpu fan curve if I still hear the fans during video playback, but I doubt they'll get so loud. I will post some pics as soon as its done, still waiting for an RGB led strip to arrive.
