I installed Motherboard Monitor when I was modding my heatsink/fan to see the difference, but I rarely ever turn it on now. If you have an Asus board, MBM actually gets more accurate readings than Asus Probe, I think. On my A7N8X-Deluxe Asus Probe seemed to be lying about CPU temperatures, since the reported values were completely different from, and usually 10 Celsiuses lower than MBM which is guaranteed to get the exact readouts from the CPU diode.