TigerD

My bad. I meant CPU temperature without load and not room ambient temperature. I am using realbench for the stress testing. You are correct that under normal use the temperatures are lower - Afterburner is showing it fluctuating around 50-60+C when I'm playing Rise of the tomb raider/Witcher 3. As I bought the K chip to overclock instead of running it at stock, I'm trying to understand if what I'm seeing is normal or should I consider an AIO in order to start overclocking?

@gameofthrones: Does your CPU temperature shoot up then drops back down during stress testing i.e. the heatsink cooling kicks in? Or is the temperature profile that I am seeing normal i.e. spikes and maintains until end of stress testing. I tried touching the fins of my H5 and they are only mildly warm despite the high temperatures which is why I am wondering if my heatsink has an issue.

I had done so several times and also cleaned the surface of the cpu and heatsink with alcohol. Is the CPU temperature profile under load normal or should I see a dip within a minute or two i.e. the heatsink cooling kicks in?

Hi Guys, I recently built a new rig with an i7 7700K together with a Cryorig H5 Universal heatsink as my first DIY project. The problem I am facing is that during a stress test, the CPU temperature jumps up from an ambient temperature of about 34C to 70C within a few seconds, keeps climbing slowly and stabilizes in the low 80s. When I stop the stress test, the temperature again drops back very quickly to 40C within a few seconds. As a result of this high temperature, I am currently running the CPU without any overclock. I have tried reinstalling the heatsink several times with new thermal paste reapplied each time but the situation remains the same. Attached is the temperature profile that I captured over about 10 mins using Afterburner and HWMonitor. Is this normal? If not, is this a heatsink or CPU issue? Any advice is appreciated. Thanks.