roncarter,
Accurate temperature readings:
Depends highly on how you're measuring temps... Whether you're in windows or the bios usually has no bearing on this... an inaccurate temp source will be inaccurate regardless of where you "read" the temp from. the overwhelming majority of amd motherboards range from bad to worse as far as temp readings. Socket-thermistors do not make for good/accurate readings. Even the motherboards that utilize the diode, such as the SOltek DRV5, do not actually show you the temps from the internal diode, rather with a socket-thermistor... One should really ask why they do this....
adamfelker,
that MSI board was really teh last "low-reading" MSI board... with later msi boards, the readings are both compensated more and from a better socket-thermistor location (misnomer ). So, no, the pro2a readings aren't accurate, they're actually very much on the low-side.
Mike