7700k with "jumpy' temps

[iliveinmyroom]

Not sure if I should be concerned or not but I have reseated and reapplied thermal paste two times now with a Hyper EVO 212. The concern isn't high temps, my temps are just fine and rarely exceed 75 under load. But when doing common things like opening up an internet browser or steam there are these "spikes" from the idle temps. It'll go from low 30's to 40's or high 50's then go back down to idle temps. The first time I reseated the heatsink and reapplied thermal paste was to see if I could get better temps and I did not notice this behavior before the first time but I may have just overlooked it which seems to be most likely because I haven't changed anything else. I see solutions to some forums saying this is normal and some give suggestions to try and fix it so that leads me to believe it's a problem. Is this little spiking behavior normal? I would just like to know if this is a problem or just something that the CPU does.

 

[CompuTronix]

iliveinmyroom,

On behalf of Tom's Moderator Team, welcome aboard!

Core temperatures increase and decrease instantly with changes in load.

Intel’s specification for Digital Thermal Sensor (DTS) response time is 256 milliseconds, or about 1/4th of a second. Since Windows has dozens of Processes and Services running in the background, it’s normal to see rapid and random Core temperature “spikes” or fluctuations, especially during the first few minutes after startup, which should eventually settle. Any software activity will show some percentage of CPU Utilization in Task Manager, where unnecessary Tray items, Startups, Processes and Services that contribute to excessive or continued spiking can be disabled.

6th Generation processors introduced "Speed Shift" technology in Windows 10, which responds much faster to changes in workload than "SpeedStep" due to having many more Core speed and Core voltage transition levels.

Since 7th and 8th Generation Speed Shift is twice as fast as 6th Generation, some users complain of Core temperature spikes which cause fluctuations in fan RPM at idle. Motherboard manufacturers are currently developing BIOS fixes that include separate SpeedStep and Speed Shift settings with more flexible fan curves and time delay options.

Once again, welcome aboard!

CT