CPU power saving question

[PhiberOptik]

I OC'd my i7 970(200x19) and was wondering if there was anyway to get the power saving features enabled again that allow lower clock speeds and voltages. They are turned on in the bios but nothing is happening.
Edit: Multiplier is adjusting now, however voltage is staying the same, so now my question is just about voltage.

[W-L]

I OC'd my i7 970(200x19) and was wondering if there was anyway to get the power saving features enabled again that allow lower clock speeds and voltages. They are turned on in the bios but nothing is happening.

 

There is an adaptive mode you can set in the BIOS once you get your stable OC and key in the voltage, but you need to change the power options in the system to balanced to let the CPU clock down during idle states.

[PhiberOptik]

Where is adaptive mode? I have a MSI Big Bang XPower and don't see it. The CPU is clocking down, it's just the voltage that won't adjust.

[W-L]

Where is adaptive mode? I have a MSI Big Bang XPower and don't see it. The CPU is clocking down, it's just the voltage that won't adjust.

 

Adaptive mode should be under the voltage control where you want to change your manual voltage control for the overclock over to adaptive, I'm not sure if that's what they called it before but adaptive mode is what it's called now.

[PhiberOptik]

Yeah I don't see anything like that, I have voltage adjust and LLC that's it. I guess that didn't come on 1366 boards.

[W-L]

Yeah I don't see anything like that, I have voltage adjust and LLC that's it. I guess that didn't come on 1366 boards.

 

I'm not totally sure on that but maybe someone might have some more info on it.

[-rascal-]

Adaptive mode should be under the voltage control where you want to change your manual voltage control for the overclock over to adaptive, I'm not sure if that's what they called it before but adaptive mode is what it's called now.

 

 

Yeah I don't see anything like that, I have voltage adjust and LLC that's it. I guess that didn't come on 1366 boards.

 

 

Adaptive Voltage was not introduced to Intel Processors until the more recent generation of CPUs. The first-generation Intel Core series don't have the function.

As what @W-L mentioned, you can change your Windows Power settings to Balanced, and enable power saving features in the BIOS (i.e. C states).

 

Load Line Calibration (LLC) completely different from Adaptive Voltage. LLC helps compensate for voltage drooping when the Processor is under load / stress.

 

EDIT: Adaptive Voltage was introduced with Haswell (i.e 8 series chipset).

[PhiberOptik]

So basically if I overclock the voltage will stay locked?

[PhiberOptik]

I've enabled everything in the bios and power options as you said. From what I gather, if I manually adjust the voltage only the clock speed will change?

[-rascal-]

So basically if I overclock the voltage will stay locked?

 

 

I've enabled everything in the bios and power options as you said. From what I gather, if I manually adjust the voltage only the clock speed will change?

 

My memory for the first-generation Core series isn't very fresh (been a few years since I looked into it), but if your frequency is constant at 3.8 GHz (200 x19), then you need a certain amount of voltage for it to maintain stable.

 

If you leave your i7-970 running at constant, 3.8 GHz, and decrease the voltage in the BIOS too much, it simply won't be stable.  It is exactly the same as having not enough voltage for an overclock, and the computer crashes / BSOD.

[PhiberOptik]

Yes I understand that. What I'm not understanding is why with all power saving features enabled the voltage is not adjusting like the clock speed is. Only the clock speed is adjusting.

[-rascal-]

Yes I understand that. What I'm not understanding is why with all power saving features enabled the voltage is not adjusting like the clock speed is. Only the clock speed is adjusting.

 

If your voltage is set to manual to run at X.XXX volts in the BIOS, then it should be fixed.

This is the issue Adaptive Voltage solves.

 

 

** If anybody on the LTT who actually still have a first-generation Core Processor, please verify this (voltage cannot be adjusted when set to manual in BIOS).

[Mew]

Turn on eist, use offset voltage rather than manual voltage, turn on c states, turn on c1e, and run balanced power options in windows with min cpu at 0%.