Question High Temps on startup but fine when gaming. Should I be concerned?

[fasthandfist]

CPU: i7 6700k
Mobo: Asus z170a
Cpu Cooler: Corsair H100i V2
GPU: 980 ti

Hello, I was wondering if I should be concerned about my temps when my PC starts up. When it starts up it sometimes reaches 100% cpu usage and when that happens then the temps reach as high as 100c, but when I'm gaming the temps are just fine not rising about 70c. I've already tried reapplying thermal paste and check to see if it was mounted on correctly and that did nothing. I've also set the pump and fan speed to extreme in the ICUE app. Also temps randomly spike from normal temps of 37c up to around 60c when idle for a quick second. I don't know if I should be concerned about that at all or not.

https://ibb.co/TghQWTC
Check link for picture of graph of temps from startup

Any help would be appreciated to help me decide if I should try a new cpu cooler or not. Thanks

 

[helpstar]

Did you overclock your CPU?

Which BIOS version is installed on the motherboard?

which tool are you using to read the temperature? the latest version of hwinfo or coretemp would be fine.
Don´t use more than one of these tools at the same time.