Turbo mode without downclocking

[neutralizer]

Is it possible to get turbo mode without it idling at 1.4 GHz when the cpu is idle. I find the computer to be unresponsive when it does that as it takes it time for it to ramp the multiplier back up, but I still want to take advantage of the ability to hit 3.8 GHz or so in turbo mode.

I can't figure out which bios setting (or which C mode to turn off) to get it to stop doing that while maintaining turbo mode. I know the downclocking doesn't happen with speedstep off, but turbo mode doesn't work with speedstep off.

tl;dr: Essentially, I want to idle at 3.2 GHz which is my normal clock and then it to only ramp up when turbo mode kicks in without any of the ramping down side effects.

 

[2March]

Is it possible to get turbo mode without it idling at 1.4 GHz when the cpu is idle. I find the computer to be unresponsive when it does that as it takes it time for it to ramp the multiplier back up, but I still want to take advantage of the ability to hit 3.8 GHz or so in turbo mode.

I can't figure out which bios setting (or which C mode to turn off) to get it to stop doing that while maintaining turbo mode. I know the downclocking doesn't happen with speedstep off, but turbo mode doesn't work with speedstep off.

tl;dr: Essentially, I want to idle at 3.2 GHz which is my normal clock and then it to only ramp up when turbo mode kicks in without any of the ramping down side effects.

You're looking for EIST. Leave turbo on and EIST off.

Never noticed any lack of response on my 920 though.

 

[neutralizer]

Apparently if I turn off SpeedStep, the option to turn on Turbo mode disappears in the bios unless EIST is C1E. I haven't tried toggling that off.

 

[Phanuel]

You need speedstep enabled for turbo to work. In Win7's power options there's a place where you adjust CPU usage that controls downclocking. I'm not sure of its exact name, but I know when I used the always on profile my 860 never went below 22 multi, but would ramp up to 26 if I was only using one core. So start in Windows' power management options.

 

[zagood]

EIST and C1 are separate settings, unless something's changed between P45 and P55?

 

[2March]

Sorry for creating such a fuss.

Problem here is that some of these settings are run by the OS and some by hardware. Turbo is run by hardware but EIST by the OS. But turbo without EIST is, for some reason, not enabled.

C1E simply allows the Enhanced Halt State. It has no bearing on turbo, EIST nor C-States. It simply allows powersavings when the core is idle but has to remain ready for work. It is C-State that allows the cores to run different states (including C1E) and therefore it also allows single core OC'ing because this is dependant on the other cores being in a sub C1(E) state. Turbo without C-State will only work on all cores.

So full fledged turbo needs EIST and C-State enabled. Seems to me the Phanuels idea is the closest to what the OP wants because it only disables EIST as that is the feature the OS can control. Turbo will simply continue to function cause the OS has no control over it.

 

[ilkhan]

set power mode to high performance, I believe that'll lock the multi to high.

 

[Xtreme-ocer]

Yes! please disable your C1E and EIST item. That is the reason make you speed down. (To save energy).

 

[neutralizer]

set power mode to high performance, I believe that'll lock the multi to high.

Is this only available in the power options when speedstep is enabled. I currently have it disabled and it doesn't appear.

 

[Ualdayan]

Turn on all the options you need to for turboboost to work, then go into advanced power settings, processor power management, minimum processor state, and change that to 100%.

 

[The Boston Dangler]

Turn on all the options you need to for turboboost to work, then go into advanced power settings, processor power management, minimum processor state, and change that to 100%.

this is the correct answer