Cannot overclock without speedstep

mcerutti

mcerutti

mcerutti

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Joined
5 Oct 2011
Posts
6
Hi,

Hope somebody can help me with this very annoying problem. I am trying to overclock a 3770K on a Maximus V extreme. In the past, I was able to overclock the 2700k on the Maximus IV extreme with turbo boost, speed step and any C-states disabled. All the cores would just be running at the overclocked frequency all the time, which is what I wanted.

With the Maximus V extreme and 3770K, I don't seem to be able to overclock unless I leave speed step enable. Without speedstep, the cores would just run at the stock frequency all the time, ignoring any turbo boost settings.

Do you know how I can overclock without speedstep? Is there any configuration that I am missing on this new mobo/CPU?

Thanks for any help,
Matteo
 
Does the option just snap back to enabled after a restart or is the option completely unavailable as soon as you up the multiplier?
 
KelDG said:
Does the option just snap back to enabled after a restart or is the option completely unavailable as soon as you up the multiplier?
Click to expand...

The option is still set on disabled which is the correct behavior.

What I noticed is that if I enable speedstep and boot into Linux, it will try to run at a lower frequency as expected. However, if I then run prime95, the frequency will go up to the overclocked frequency which is good.

Though, in the previous generation of mobo/cpu, I could keep speedstep disabled and still have the cores running at the overclocked frequency all the time.

In order to achieve that now, I would have to change the CPU governor for all the cores to performance. As a result I have the cores running at the overclocked frequency all the time.

Has anybody seen this behavior too?
 
Can't you just use the multiplier and vcore adjustment rather than turbo?

Using low freq at idle and full clock at load is how speedstep works.

Using the multiplier and disabling speedstep and the c states should have it running at full constantly.
 
Doomedspeed said:
Can't you just use the multiplier and vcore adjustment rather than turbo?

Using low freq at idle and full clock at load is how speedstep works.

Using the multiplier and disabling speedstep and the c states should have it running at full constantly.
Click to expand...

I do use the multiplier with vcore adjustments, but also have turbo boost on.

This is the behavior I always had with the Maximus IV + 2700k which no longer seems to work with the Maximus V + 3770K. With speedstep and c-states disabled + multiplier set (turbo boost on), I would get the overclocked frequency all the time, even when idling. Now, it forces me to enable speedstep in order for the multiplier to take effect and for the overclock to kick in.

Not sure if I'm doing something wrong then..
 
Doomedspeed said:
Using the multiplier and keeping the turbo on may be it. Just use the multiplier and disable the turbo, see if that works.
Click to expand...

When I disable turbo boost, it also disables the ability to use a multiplier above 35. It needs to have turbo boost enabled to overclock if using multiplier, otherwise I would need to fall back to BLCK.

Any idea?

Thanks,
Matteo
 
Why is using Speedstep a problem ? I use it with my overclock as I don't want my CPU going flat out all the time. Surely this is better ?

Or is that you can't reach maximum overclock with Speedstep due to the offset value ?
 
I want my cores to run flat out all the time, I have a number of reasons for this but it's not really relevant towards the solution I am looking for.

It just appears that speed step needs to be enabled to make the overclocking work which was not the case on the 2700k and/or Maximus IV.

Can anybody confirm that this is the case indeed? Do you know if there was an
architectural change in Ivy Bridge that changed this behavior?

Thanks for the help,
Matteo
 
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