The CPU's clock speed fluctuates at low megahertz levels.
The CPU's clock speed fluctuates at low megahertz levels.
Hello!
My i5 8600k runs at around 4.5GHz with a 1.2v clock speed, and I haven't experienced any problems. But lately, I've observed the CPU fluctuating between 4.498MHz and 4.502MHz instead of staying steady. Is this typical behavior or should I investigate further?
EDIT: SpeedStep is currently turned off.
https://imgur.com/a/vRgGbvw
View: https://imgur.com/a/vRgGbvw
Specs:
MB: MSI Z370-A PRO
CPU: i5 8600k @ 4.5GHz
Cooler: SilentiumPC Fera 3
GPU: Gigabyte 1070 Ti
RAM: Kingston HyperX Predator DDR4 16GB (2x8GB) 3200MHz CL16
HDD: Seagate Barracuda 1TB
PSU: Corsair RM750x
Screenshots were captured during inactivity. And indeed, I think that's the minimum I can reach.
I chose to adjust the clocks to reflect stock values, hoping for a shift. Still, it's fluctuating around 2 MHz. (Stress tests show 4098 to 4102 MHz variations)
It's typical when all the "spread-spectrum" clocking options are turned off in the BIOS. When these settings are active, the spread increases significantly—approximately 10MHz at 0.25%. This is usually necessary to meet FCC certification requirements and ensure emissions stay within legal limits.