I'm trying to figure out why my Tcase temp is higher than my TJuntion temp. I'm assumming one is being reported incorrently, but which one is more likely to be the culprit. Here's my situation:

Tcase = 37 (32 in BIOS upon restart) & 55 (up to 62 with TAT)
Tjunction = 32 & 50-55

Ambient = 20
Chipset = Nvidia 680i
C2D = e6400
CPU Cooler = Arctic Cooler Freezer Pro 7/Ceramique
Frequency = OCed to 3.2 (linked/synced with 1600QDR)
Load = Orthos/TAT/OCCT/3DMark2006
Motherboard = EVGA
Vcore = 1.25

I'm wondering, of course, why my Tcase is higher than my Tjunction. Is my TJunction more likely to be being reported incorrectly than my TCase? That is, is it likely that my Tcase is correct, meaning my TJunction Idle/Load values are really more like 47/70-75. The Tjunction values reported above are consistent across TAT, CoreTemp, and SpeedFan. Any guidance would be much appreciated.