Hi Mark, > In particular many Asus mainboards have SMBus pins. I've never seen > anything advertised by them to connect to it... but I did hook up a > scope to one of mine to confirm that it works. Just opened my two cases, nothing interesting in the first one (there's a mysterious 3-pin port named PWRATX (if I read it correctly) but it doesn't sound like what I am after) but there is a 4-pin port named SMB on the second one (ATV133-C). It damn sounds like what you're talking about. I guess that these pins are +VCC, ground, SCL and SDA? Any idea about the order? Pin 1 is alone, then there's a hole, then three more pins. -- Jean Delvare http://www.ensicaen.ismra.fr/~delvare/