PolluxTroy

I'll try tommorow with another cpu to see if i have some change.

The room is at about 24°. We have an air conditionner too. With the two main motherboard, in 5 seconds it goes up to 100°. With the MSI B360-A PRO, it's slower and it doesn't higher than 80°. About airflow, i have 2 fan in front of the case, one on the back, two on the top.

Yup, i'm working in a shop where i'm assembling computers and repairing them. So yes, i know how to do it. I've verified at least 10 times during my tests, with different thermal paste, inside the case or outside, with another power supply, another ram memory. If i put the cpu cooler in the other side, the first fan will be too close from the gpu (RTX 2070 super). ANd i have the same problem with motherboard outside of the case. The CPU doesn't go to high (about 80°) on a MSI B360-A PRO. The only thing i need to try is another CPU. The room is at ambiant temperature, with fresh air. The case is a Bequiet PureBase 500.

Yup, i've done all of that. Good and fresh thermal paste, the cpu cooler seems to be good in presure too. I've updated the BIOS of the two motherboard too. I'm totally lost. I've set the fans speed to the maximum to try, i have 3 or 4 ° less.

Hi, First, sorry for my english, i'm french ;) I need a little help because i've build a PC with an i7-9700KF (just bought) on an H370 Aorus Gaming 3 Wifi. The problem is, on OCCT, in Power test, the CPU goes up to 100° very vast, even with a Dark Rock Pro 4 cpu cooler. I've tried the CPU on another motherboard, same thing happen. But on a third cheap motherboard, nothing more thant 80°, with a stock Intel CPU cooler. If i disable Intel Turbo Boost mode, there is no problem, and CPU dont go too high (about 75°). I've tried another Dark Rock Pro 4, same thing happen. I'm currently trying with an i7-9700K i have, to try, but it seems to be the same, i need more time to try it. Do you have any idea of what happen ? Thank you so much if you can help me solve this mystery ;)