Question Vcore fluctuation cause spikes every 2 minutes...

[YoBigu]

Hi .
I've OC'd my 11900K - AsusRog Z590E, like this :

• Intel Adaptive Boost Technology to Disabled
• AI Overclock Tuner to XMP I
• Asus MultiCore Enhancement to Enabled – Remove All Limits
• CPU Core Ratio to AI Optimized
  • Set Overclocking TVB to +1Boost Profile.
  • Set Package Temperature Threshold to 85
  • Set Regulate Temperature Threshold to Enabled
  • Q-Fan Configuration to Turbo and pumps to full speed

The Issue that I experience is that the Vcore voltages fluctuates when I put some load like gaming around 1,294v-1,403v I I get a spike in game every 2 minutes when the voltage fluctuates from High to low or low to high, in idle non load just doing nothing jumps up to 1,625v .... The OC is stable Tested in Prime 95 and cinebench . I am using this OC for about 4 years but since last Bios update I experience this spikes in games .... I tried to tweek a bit the LLC changed to lvl 5 to lower a bit the voltage, in Prime 95 passed the stress tests, when I was gaming the spikes was gone but it crashed after 30 minutes. I lowered to LLC lvl 3 but it pulls to mutch voltage fluctuates around 1.43 and 1.55 in games.
Can someone help me fix this spikes please or give some advice ?
My setup is :
Operating System
Windows 11 Pro 64-bit
CPU
Intel Core i9 11900K @ 3.50GHz
Rocket Lake 14nm Technology
RAM
64.0GB Dual-Channel DDR4
Motherboard
ASUS ROG STRIX Z590-E GAMING WIFI (LGA1200)
Graphics
DELL U2518D (2560×1440@59Hz)
XB271HU (2560×1440@165Hz)
4095MB NVIDIA GeForce RTX 3080 Ti (ASUStek Computer Inc)
Storage
238GB SAMSUNG SSD 830 Series
931GB Seagate FireCuda 510 SSD
223GB Force MP500
Case
Corsair 7000D AIRFLOW
x6 Corsair RS140 ARGB 140mm PWM Fans(magnetic levitation)
x2 Corsair RS120 ARGB 140mm PWM Fans(magnetic levitation)
Water pump cooling system
EK Water Blocks EK-Quantum Kinetic TBE 160 DDC PWM D-RGB Pump, and CPU body
Can’t remember the radiator Brand and model …. but is a high end one.
PCU - Corsair HX Series 1200W

 

[helpstar]

update BIOS of motherboard
reset BIOS

 

[YoBigu]

I've done that rolled back to an older version reset CMOS.... now is back to the last update.... I think the issue comes from Intel ME that cannot be rolled back.