I recently built my first PC based on AMD Ryzen 9 7900X in pair with AOL Liquid Arctic cooler III 240mm. I want to know is it normal to hit thermal cap of 95deg. C when all cores are loaded? I tried removing top mesh and side panel, turning back fan to blow inside – nothing helps. It is still draws nearly 200W and capt at 95deg. C. Is this cooler not able to cool this processor? Did I do something wrong? I connected the 3-connector cable of the cooler to my motherboard in this order: FAN to CPU_FAN, VRM to CPU_OPT and PUMP to FAN4_PUMP. Settings in bios specify that this is 4 pin PWM connection. The radiator at the top and are higher than the pump. There is no strange noises. Radiator is getting pretty hot when stress-testing. The contact plate film ARE removed. I tried to reapply thermal paste and it didn't help either. When gaming (7-12% load) and 90% GPU load the CPU is at 60-70 deg. C. Is this normal? (photo with temperature is at 92 deg. C but this is only at this frame. it is capping at 95).
I discovered that 15mv undervolt is stable over 24h stress test. Stress testing was done with mprime (also known as Prim95)