Your temps don't look right....might be the calibration on the interface or it might be giving you good data.
Is your fan spinning? What is the ambient temperature? What kind of PSU are your running?
What is on 47-48 C not right?
Mine is running between 40-43
I get 45-48 at stock speeds on some units and 43-46 on others. I generally overclock to whatever speed keeps the temps in the 50-53 range (387 or 400 on most units)