CPU Multiplier activity

crabdog

Distinguished
Sep 16, 2006
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I have an i5-3470 with a very slight overclock (at 3.3ghz, default is 3.2) on an Asrock Z77 Extreme3.
Looking at CPU-Z I noticed that the multiplier is jumping from x16-x32 every 3-5 seconds, even when there's 0% load on the cpu. Is this normal?
 

crabdog

Distinguished
Sep 16, 2006
107
0
18,690
I understand about Turbo mode but thought that the speed would stay low during inactivity. It's jumping from 1679Mhz to 3359Mhz every few seconds. Seems rather pointless?