CPU temps underload range 10C like a wave

[Nogghan]

my 8600k at 5ghz has a really weird temp readout, it goes up and down 10c constantly from ~65 max to ~55c lows it peaks lower and higher but not into the 70s and not below 50 whats going on? is this just because of the way intel XTU loads the CPU? my i5 4440 doesnt have this same variation its a steady line at 64C 

my 8600k is delided, im using conductonaut and Mx4 using an air / tower cooler 

Edited May 25, 2018 by Nogghan

[bellabichon]

That sounds like a faulty temp sensor to me. 65 degrees is fine though, so you have nothing to worry about.

[Tabs]

@Nogghan It looks like it might be the fan having trouble finding equilibrium if the fan ramps up at the peak of those spikes, it might cool the processor enough to where the fan starts slowing down again. You could correct for this by implementing hysteresis on the fan curve.

 

Does this still happen if you have a different fan profile set? If you have a flat fan curve you should hopefully notice this go away.

 

Either way though, those temperatures are very good, so it's not something worth worrying over unless you believe the temperatures are inaccurate. 

[Morata]

I believe this is an issue with XTU if you ask me. On my Alienware laptop, from day 1, it went up and down all the time.

[Nogghan]

7 minutes ago, Tabs said:

@Nogghan It looks like it might be the fan having trouble finding equilibrium if the fan ramps up at the peak of those spikes, it might cool the processor enough to where the fan starts slowing down again. You could correct for this by implementing hysteresis on the fan curve.

 

Does this still happen if you have a different fan profile set? If you have a flat fan curve you should hopefully notice this go away.

 

Either way though, those temperatures are very good, so it's not something worth worrying over unless you believe the temperatures are inaccurate. 

no thats not the case that screenshot is with the CPU fan locked to 100% in bios my cooler is " le grand macho" from thermalright, and im not worried about the temps i just want to know why it shows a 10c swing every 10-15 seconds, also im not using mx4 i forgot i put on IC graphite but even that shouldnt do this... its probably just XTU being weird 

Edited May 25, 2018 by Nogghan
not using Mx4 anymore