Which temperature is mine?

I'm using the AMD 5000+ Black Edition (dual-core) processor, and testing with Prime95, reading the temperatures with SpeedFan. However, I can't figure out what temperatures are the actual CPU. Here are the ones that could be, but I'm just not sure:

Core: idle at 10C, load at 25C
Temp 2: idle at 25C, load at 40C

I've benchmarked like this before, but I'm simply stumped because A) There is only one core listed... With all of the others, there's more than one. B) The temperatures rise at nearly exactly the same times, etc...

As a note: All the other temperatures are false readings or something because they just stay locked at a certain temperature no matter what. There's also one HDD temperature.

If you need anymore details, just let me know-thanks in advance for your much appreciated help!

Okay, thank you very much! Any idea why I'm not getting a temp. for my other core?

Actually, CoreTemp showed speedfan's "Core" temp as Core 1, and speedfan's "Temp 2" as Core 2. So that can't be right, either...