Attached image didn't get attached. If the detected temps are below ambient room temp, these are most likely false. Unless maybe your PC is under a cracked window, and its cold outside or something similar. What are you using to read your temperatures?
Edit: I See the image now.
Temperature: CPU/Mainboard (28c/23c respectively) look like they could be accurate in a cool house with lower ambient temps. Try putting some load on the CPU and respond with the newly detected temperatures, as this is more important than idle temperatures.
I'm currently using "RealTemp" for cpu/gpu monitoring. Its pretty simplistic, listing current, min and max temps for each CPU core, and current GPU temperature.