Tonyou,
if you're doing tests with a SOcket A platform, you know why you can't compare with it. As far as the soyo board, something is very fishy about soyo 6ba+ series boards, and i believe it could simply be a faulty resistor that Soyo has used(since, upon readng numerous reports of 6ba+III and +IV temps, they appear to be very compressed) or potentially another problem. The order should be correct, but full core temp differences aren't shown on the Soyo Boards for one reason or another.
Mike