You are correct in saying that the CPU and GPU are fine, however about those other ones....
Well, all motherboards are different. They work differently to each other, and as a result, some get far hotter than others.
Try and do a google for information on this mobo if you are worried.
I would just wait and see if it started turning itself off. I would start to worry then.
Most modern mobos will turn off if things are overheating to prevent damage.
Hey XdbodzX, I did some researching like you said and it turns out the Nuvoton NCT6779D us actually an I/O chip. I downloaded CPUID HWMonitor and it turns out my mobo's temp is around 28C-31C so I think I'm fine for now on until I can find out the supposed temp of this I/O chip.
Thanks for your help!