I have just got a different case because I wanted an upright case. Now I'm having a problem with temps they are getting higher. I was at 30C idle for cpu and 28C for MB and under a load 35C CPU but now with the upright case it's 37C for the cpu Idle and 34C for the MB and on it load the Cpu gets to 48C are these temps still good or should I change my cpu fan?