What are your ambient temperatures?
Also,what are your overclock settings (adaptive, offset, turbo mode etc) and windows power plan.
I'm asking because your idle temps seem a bit high.
I'm running 1.305 vcore @5GHz with a H105 cooler and my idle temps are practicaly room temperature (25-35).
The fact that one of your cores has quite a bit higher max temp usualy means that you haven't seated the heatsink properly, too much paste is on some spot or (less likely) that the core is slightly meh.