While in the BIOS, CPU = about 30 C, CPU Fan = about 1000 rpm.
In Windows I use Hardware Monitor and I get the following (all temps from the Mobo except Cores);
Idle: CPU = 82 C, CPU fan = 950 rpm, Core Avg = 32 C (also AUX = 58 C, TMP = 32 C)
Prime95: CPU = 37 C, CPU fan = 1375-1400 rpm, Core Avg = 50 C (also AUX = 50 C, TMP = 51 C)
SYS always sits at about 26 C.
EDIT: Oh and the CPU temp changes between 82 and 37 instantly after Prime95 is started/stopped. AUX, TMP, Cores, CPU Fan Speed all take a few seconds.