Anyone know if there is a known problem on this board on the CPU temperature sensor monitoring. My Speedfan CPU reading has been suddenly jumping from about 38c idle up into the 80-90's whilst still showing core0 and core1 temps at about 22c.? This is whilst not running anything in particular. Yes - I have checked the HSF and it fine.

Also appreciate if anyone can tell me exactly what the CPU PLL voltage setting in BIOS is for.