Chrispy, you said you'd expect the temp to be in the 20c range..when I turn the power on and go straight into bios I'm already at 36c and then it climbs pretty steadily to hit 60c in probably 2 minutes..
C over ambient
. If your room is at 25o
C, you're never going to see temps lower
than that with standard air cooling; If your room is 25o
C, I'd expect the CPU to be idling in the BIOS at 45o
C, maybe 55o
C if the case airflow is a real problem.
Your temps are climbing high and fast, are you sure the CPU fan is plugged in and the fan is spinning properly?
The last thing to do is just install Windows and see what happens with the Cool&Quiet drivers. It could
just be that your particular motherboard BIOS loads up the cores more than others. 60o
C is still perfectly safe. It's prolonged temps above 75o
C I'd worry about. The AMD retail coolers are pretty basic, but if you're not overclocking and you don't find them too noisy, they're perfectly adequate.