Ok so when I first got my GTX 780 in February, it would idle ~30-32 Celsius, which is (I'm hoping) normal. Recently, however, I started paying more attention to my temps and now I'm a little worried. ASUS GPU Tweak and MSI Afterburner both show that my GPU idle temp is ~43 Celsius. Is my GPU overheating? Should I be worried? Should I clean my GPU?