Very true, some motherboards dislike it's method for probing the SMBus as well. That having been said it supports two features that I have grown to love. First off it does graphs, which is nice if you want to see what your temps were like while say, playing Doom 3. You can exit the game, throw up a graph and see your temps for the last 13 minutes or so. Second, it is able to read the temps from my GeForce FX 5900 via SMBus, so I don't have to run to the display properties every time I want to know EXACTLY how scorching my GPU is running. I still believe MBM5 is the best all around program for temperature monitoring. Nonetheless, even when not using the fan speed control, which I understand is not everyones cup of tea, this program still has a great deal of usefull features that definitely make it worth a look. You might be surprised!