Is 40-45 Degree Celsius Bad Or Good For A CPU On Idle

[Lazyboy10]

I have just built my new PC and it has been up and running for about 2 weeks now and i have been monitoring the Temperatures. I've red a lot of forums saying that a CPU should be running at 30. When it is on full load i have seen it go up to 50-55 and i wanna know are these dangerous numbers. I'm using a cooler master 212 EVO on my Intel I7-4790k and I got it because I heard it was one of the best. Should I pick up a new one such as a liquid cooler or some other ones. Thanks

My PC Specs Are

http://pcpartpicker.com/p/djzt23

 

[maddogfargo]

Idle temperature isn't as critical as load temperature. 50-55c for an i7 under moderate load is actually pretty good. Intel maxes at 95c with recommended to keep it below 80c under full load. You're fine.

 

[InvalidError]

Idle temperatures are meaningless since the temperature sensing circuits in CPUs are designed for minimal footprint instead of accuracy and tend to be grossly inaccurate below 50C: there are many people who report CPU temperatures lower than their room temperature at idle and this is physically impossible without using some form of below-ambient cooling.

55C under load fairly good. My i5-3470 gets to 65C under load but that is with 30C room temperature and the stock Intel HSF. At idle, it drops to 40C.