• We’re currently investigating an issue related to the forum theme and styling that is impacting page layout and visual formatting. The problem has been identified, and we are actively working on a resolution. There is no impact to user data or functionality, this is strictly a front-end display issue. We’ll post an update once the fix has been deployed. Thanks for your patience while we get this sorted.

Turbo mode without downclocking

neutralizer

neutralizer

Lifer
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.
 
neutralizer said:
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.
Click to expand...

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

Never noticed any lack of response on my 920 though.
 
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.
 
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.
 
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.
 
Last edited:
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%.
 
You must log in or register to reply here.

TRENDING THREADS

Back
Top