It sounds like the most interest is temperature. I have a spare serial port adapter, so no need for me to void the warranty... ...yet. I did some searches on this bbs (search is everybody's friend) and the internal temp probe is a one-wire chip. It is a surface mount device, so I am not excited about tacking some wires on it to extend the bus. (but someone on this bbs did, to replace a faulty chip). I also found some scripts that download all the tools and code and compile the kernel for you, so now it is up to me to see if I have enough of a clue to make this work.