I never let my pc go into standby, but i have a feeling that maybe your fans might reduce their rpm's when they go in to that state, so therefore that would explain the raise in temps... Besides.. if your pc remains stable, and successfully makes it back to normal operation, your going fine, regardless of temperature raising.
<b><font color=red>Nothin like a Pentium II furiously churning out a blistering 0.8 FPS on 3D Mark 2001!!!</font color=red></b>
I do not trust the temp probe of my mobo, they are usually based on the temp of the air under the cpu. that design worked well before fcpga but they should really get with the times and use the one included with modern amd processors. I have thermal probes taped to just barely touch the side of the cup die. I get much more accurate readings and I find that the temp is almost 8c higher in the area below the cpu than the die is.
In battle Israel uses F-16's and big ass tanks, Palestine uses small children strapped to bombs. Which do you support?