BIOS Manual Voltage isn't fixed [luckely]

[JacobMTK]

Hi everyone,

 

Last month i overclocked my 4770k.
After watching A TONS of tutorials/videos specifically for Haswell,
From multiple sources, i got the idea that if i set the VCore to manual on the Bios,
i wouldn't have had any of the power saving features because the voltage would've been fixed, no matter the load.

But after entering in windows,i see a different story.
Basically i've set the VCore to Manual 1.255v in the Bios and the 43 as core multiplier (40 in cache).
All Power savings features like C States are enabled.

Looking at both HWMonitor and AISuite 3 i see that the frequency ,voltages and watts vary greatly depending on the load like
it did before the overclock (changing from 800 to 4.3Ghz and from 0 to 1.28v depending on the load).
Yes, it goes up to 1.28 for some reason when rendering and yes, voltage is manual, not adaptive.
I guess it gets more juice when it detects avx or something.

 

Anyway,the question is,why am i still getting the power savings i had when the voltage was on Auto
even if i keep hearing in every single guide that Manual voltage remove power saving by having
a fixed voltage at anytime?

 

Note: no, i don't want to "Fix" the issue,i'm happy with it,i'd just like to understand what is going on.

 

Thanks in advance.

[schwellmo92]

"All Power savings features like C States are enabled"

"the question is,why am i still getting the power savings"

[JacobMTK]

Just now, schwellmo92 said:

"All Power savings features like C States are enabled"

"the question is,why am i still getting the power savings"

But the why every guide say that you loose all power savings with manual voltage if you then just need to enable C-States?

Why push the Adaptive voltage option for power savings if you can just use Manual and then enable C States?