CPU Temperature Spiking when I move my cursor!

[hxrvj]

Is this normal or not and if not what could the problem be ?

 

[k1114]

What's the temps?

 

[hxrvj]

What's the temps?

34 - 46 c

 

[photonboy]

CPU temp is proportional to CPU usage, so the CPU usage would need to be going up because you moved your mouse.

That seems pretty unlikely in itself so you should be using TASK MANAGER to see what application is spiking when you move the mouse.

If you're simply moving the mouse back and forth this makes no sense to me. Are you sure? If though the cursor is opening a program or doing something to a program that eats up CPU cycles then maybe.

 

[k1114]

Does it show the spikes with different temp software? What are you using?

 

[mdd1963]

CPU clock speed will spike from 800 MHz to up to 2 GHz, or even 4.5 GHz (given a 7700K example) just moving the mouse around, and, temps will jump back and forth from 32C to 48C (in HWMonitor) and back a few times a second just while moving around a mouse...

The days of seeing relatively constant 80-90F core temps like on the Coppermine Pentium III core are gone.

 

[photonboy]

CPU clock speed will spike from 800 MHz to up to 2 GHz, or even 4.5 GHz (given a 7700K example) just moving the mouse around, and, temps will jump back and forth from 32C to 48C (in HWMonitor) and back a few times a second just while moving around a mouse...

The days of seeing relatively constant 80-90F core temps like on the Coppermine Pentium III core are gone.

I just checked an my i7-3770K package temp in HWMonitor jumps between 30degC and 45degC constantly regardless of whether I move my mouse or not.

Sometimes it happens a couple times in a seconds and sometimes it doesn't go over 40degC for ten seconds (that I see reported... fluctuations happen more rapidly than what you see reported).

So not sure it's a big deal. I thought moving my mouse made it jump a few times but it turned out to be a coincidence as I kept trying at random and the CPU temp didn't match up.

Unless you have some slowdown issue or CPU overheating I think it's best to assume things are working as they should.

Other:
Power Savings settings will also affect how frequency/voltage values fluctuate. Modern CPU's can quickly park the CPU cores or at least drop the frequency/voltage low in active cores to save power but then very quickly ramp up the frequency to meet more demanding tasks.

So modern CPU's fluctuate more than older CPU's.

OLDER CPU's may have been more stable for power consumption and frequency but they also consumed far more power just sitting idle. Again, modern CPU's are increasingly optimized towards adjusting to the load as they are based around power savings (driven primarily by the need for efficiency in mobile devices).