I'm in the middle of a 3 hour Prime95 run to test my oc to 4.0GHz. I have CPU-Z open and I noticed that about every 30 seconds my multiplier drops from 20 to 8.5 for a few seconds and then goes back up, which of course drops the core frequency temporarily. No errors on Prime yet, but what causes the multiplier to drop like that? I'll post all the relevant screens shots when the run is over, but my Vcore is set to 3.75 in bios but Asus AI Suite shows it fluctuating between 1.35 and 1.41 during the run. Should that be happening and, if not, what could my problem be? Temps are good. Haven't gone over 57 C.
Note: Stopped the Prime95 run at 2 hours and took screenshots below. Also posting my bios.