Core Voltage fluctuation?

[Rokabud]

Hi everyone. I'm overclocking an 15 2500k to 4GHz. After trying several different settings for Core Voltage starting at 1.12V I worked my way up to 1.135V. But when I open CPU-Z, the Core Voltage value fluctuates between 1.120V and 1.128V. Does anyone know the reason for this discrepancy?

 

[amuffin]

Offset voltage overclocking?

You didn't give any info, so I can't really help.

 

[Rokabud]

Manual Voltage. Sorry for the lack of info, I'll post some more here:

BCLK: 100
Turbo Ratio: 40
Internal PLL Overvoltage: Disabled
Memory Frequency: 1600MHz
EPU Power Saving Mode: Disabled
Load Line Calibration: Auto
CPU Voltage: Manual Mode
CPU Manual Voltage: 1.135V
CPU Spread Spectrum: Auto

But CPU-Z reports Core Voltage: 1.120V/1.128V

hope this helps

 

[amuffin]

Internal PLL Overvoltage on
Load Line Calibration 1
CPU Spread Spectrum off