[Xion X2]

If you didn't run two instances of Prime, then you didn't get accurate temp readings. Your temps will escalate another 7-10C by running it on both cores.

You have to copy and paste the prime executable to another place on your drive. Put one on your desktop and one on your C drive and then run it from those locations and it should work. Then set affinity to 0 on one core and to 1 on the other.