i5 3570K TEMPERATURE JUMPING

[LucasPG]

Hi guys, so i have a 3570k with a asRock z77 ext 4 running at 4.5ghz with a thermaltake jing an gelid gc extreme, and i having some problems with the temperature reading, the temps go from 40c to 70c in less than a second when i start the prime95,the temperature stays safe at 70c~75c and when in iddle the temp jumps 10c up and down really fast, this just occurs in the SO in the bios the temperature stays solids, i use a lot of softwares an all indicates the same (realtemp.afterburner,etc..), is this normal? how can i fix? (english is not my first language, so sorry for any mistakes.)

 

[Ecky]

Yes, normal behavior. The temperature sensor in modern Intel CPUs is closer to hotter parts of the chip than in older chips, so you'll see a lot more and faster variation in temperature readings.