Higher core voltage @ idle than under load?

[Willy2shouez]

Can someone let me know why my core volts would be 0.0365 higher when Idle (@1.424). And under full load drops back to 1.3875 (manually set for my 4.2ghz clock)????????

Not sure if my specs will help you answer?

MB: Asrock 970 extreme 4 (I know low end MB for OC'ing)
CPU: AMD FX 6300
Gskill ripjaws 8gb 1600
PSU: CoolerMaster 525W Extreme 2 (i know maybe doesn't cut it for OC, budget permitting).

Cheers, any help much appreciated! Been a long time since my last OC!

 

[Pinhedd]

Can someone let me know why my core volts would be 0.0365 higher when Idle (@1.424). And under full load drops back to 1.3875 (manually set for my 4.2ghz clock)????????

Not sure if my specs will help you answer?

MB: Asrock 970 extreme 4 (I know low end MB for OC'ing)
CPU: AMD FX 6300
Gskill ripjaws 8gb 1600
PSU: CoolerMaster 525W Extreme 2 (i know maybe doesn't cut it for OC, budget permitting).

Cheers, any help much appreciated! Been a long time since my last OC!

This is normal and is actually a part of the voltage controller's design. The core voltage drops slightly under high current conditions (due to fast and frequent circuit switching) to prevent it from overshooting when the fast and frequent circuit switching suddenly stops.

Some motherboards have the ability to tweak the VRMs to counter this. The option can be found in the UEFI/BIOS settings and is usually called "Load Line Calibration"

 

[cklaubur]

Sounds like you are seeing voltage droop. A processor under load takes more power (amperage), causing the voltage to drop slightly. There's nothing that can really be done. You may have the option to adjust control of that droop (not sure, I don't work with AMD systems very often), but it will happen.

Casey