|"By the time i actually get to the bios the temperature is already normal again."|
Then the readings you're getting aren't inaccurate. There's no way the CPU temp would drop from 75C to 42C in less than a minute, unless it takes you an extraordinarily long time to reboot & access the BIOS?
Try another monitoring program.
"it's not overclocked"
That's a shame. The board is an excellent overclocker...you should be able to hit 3.0GHz with that CPU.