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post #111 of 369
Quote:
Originally Posted by Forceman View Post

High Performance keeps the CPU from downclocking, unless you manually change the min processor state.

Well, I am on High Performance all the time and as long as you enable EIST and C1E state it will auto downclock.
Quote:
Originally Posted by phazer11 View Post

Here is what I'm seeing figured it'd be easier to show you



Is this for me?
Quote:
Originally Posted by Forceman View Post

The easiest thing to do is just set an arbitrary offset (say +0.05) and then boot into Windows and run a stress test. Compare the voltage you are getting there with what you need (the fixed voltage) and then go back in and change the offset so it matches. That eliminates worrying about what the VID is and it also automatically accounts for the LLC setting. So if the +0.05 offset gives you 1.325V and you know you need 1.375V you'd just change the offset to +0.1 and you are all set. You may also need to disable C3 and C6 in the BIOS if you are getting crashes at idle, as those settings sometimes don't play nice with offset voltages.

Yes, but my target is to enable C3 and C6 and I'm not able to because I'm having BSODs. What can I do to enable them together with Offset?

And why is it that if I use Medium LLC I have to set my load voltage higher to become stable in both IBT and Prime 95? Say for example I'm stable at UH 47x 1.44V. With Medium LLC, I can only be stable if I adjust Offset/Additional Turbo Voltage that would give me a load vcore higher than 1.44V.
post #112 of 369
Quote:
Originally Posted by kevindd992002 View Post

Well, I am on High Performance all the time and as long as you enable EIST and C1E state it will auto downclock.
Is this for me?
Yes, but my target is to enable C3 and C6 and I'm not able to because I'm having BSODs. What can I do to enable them together with Offset?

And why is it that if I use Medium LLC I have to set my load voltage higher to become stable in both IBT and Prime 95? Say for example I'm stable at UH 47x 1.44V. With Medium LLC, I can only be stable if I adjust Offset/Additional Turbo Voltage that would give me a load vcore higher than 1.44V.

It'll only downclock in High Performance if you change the min processor state, or if your BIOS is set to override the Windows power control settings. Neither of those are default conditions.



Medium LLC is going to result in more vdroop under heavy load, which will cause your Vcore to be lower. Are you sure the actual Vcore is higher (in CPU-Z) or just the setting for Vcore? For example, UH with 1.44V might only droop to 1.43V, while 1.44V and Medium it would droop to 1.40V - so you are adding more voltage to counteract that additional droop.

As for enabling C3 and C6, I don't know in your case. Normally they are fine to be enabled with offset, it is only sometimes that they cause trouble. You might try using a higher offset and a lower additional turbo voltage (to give the same result). That would help increase your idle voltage, which may make it more stable there.
post #113 of 369

I tried to set the offset to .05v and boot it but it wouldn't go unless I put it at .055v and even at that it BSOD'd when I logged in. The lowest offset I have been able to get it to is.075v and that raises the vcore under load to 1.425v

     
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post #114 of 369
Quote:
Originally Posted by Forceman View Post

It'll only downclock in High Performance if you change the min processor state, or if your BIOS is set to override the Windows power control settings. Neither of those are default conditions.



Medium LLC is going to result in more vdroop under heavy load, which will cause your Vcore to be lower. Are you sure the actual Vcore is higher (in CPU-Z) or just the setting for Vcore? For example, UH with 1.44V might only droop to 1.43V, while 1.44V and Medium it would droop to 1.40V - so you are adding more voltage to counteract that additional droop.

As for enabling C3 and C6, I don't know in your case. Normally they are fine to be enabled with offset, it is only sometimes that they cause trouble. You might try using a higher offset and a lower additional turbo voltage (to give the same result). That would help increase your idle voltage, which may make it more stable there.

I am pretty sure that all of the computers I've assembled to date that they downclock even though they are at High Performance as long as speedstep and c1e are enabled in the bios. I leave all the settings of the High Performance power plan to default so the Min processor state is still at 100%. This is even true for my SB laptop which I can't even change any power savings settings in its bios. Does this mean that ny current system, ASUS P8Z68V, bypasses Windows power schemes?

That's what I'm doing with my current system now, increasing Offset and decreasing Addtl turbo voltage to increase idle voltage but keep load voltage the same. This is to enable c3 and c6 without BSOD.

Ans yes, I am sure that it is higher in CPUZ with Medium LLC to be stable.

Yes I understand that I have to increase Offset for a lower LLC setting. I think that at Medium LLC 1.44V I will be stable at P95 but not in IBT because the vcore is not 1.44 when running IBT? So in order to be stable at both programs, I have to increase vcore.
post #115 of 369
Quote:
Originally Posted by kevindd992002 View Post

I am pretty sure that all of the computers I've assembled to date that they downclock even though they are at High Performance as long as speedstep and c1e are enabled in the bios. I leave all the settings of the High Performance power plan to default so the Min processor state is still at 100%. This is even true for my SB laptop which I can't even change any power savings settings in its bios. Does this mean that ny current system, ASUS P8Z68V, bypasses Windows power schemes?

cpu-z readings can be off if its set to high performance with 100% minimum processor state,
doesnt downclock if its set to 100%, maybe not for everyone smile.gif

100%


0%
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post #116 of 369
Quote:
Originally Posted by kevindd992002 View Post

I am pretty sure that all of the computers I've assembled to date that they downclock even though they are at High Performance as long as speedstep and c1e are enabled in the bios. I leave all the settings of the High Performance power plan to default so the Min processor state is still at 100%. This is even true for my SB laptop which I can't even change any power savings settings in its bios. Does this mean that ny current system, ASUS P8Z68V, bypasses Windows power schemes?

I don't know why yours behaves that way. It happens real time, you can change the setting and see the effect immediately. I'm doing it right now, and as soon as I select High Performance the freq goes to 4600, then drops back to 1600 as soon as I switch back to Balanced.

What are you using to monitor the freq? I do notice now that both Core Temp and CPU-Z show 4600, but RealTemp shows something in the region of 2800 - still higher than with Balanced, but not all the way to full speed. So maybe that's the issue.




Edited by Forceman - 2/14/13 at 12:31am
post #117 of 369
Quote:
Originally Posted by VonDutch View Post

cpu-z readings can be off if its set to high performance with 100% minimum processor state,
doesnt downclock if its set to 100%, maybe not for everyone smile.gif

100%


0%

Quote:
Originally Posted by Forceman View Post

I don't know why yours behaves that way. It happens real time, you can change the setting and see the effect immediately. I'm doing it right now, and as soon as I select High Performance the freq goes to 4600, then drops back to 1600 as soon as I switch back to Balanced.

What are you using to monitor the freq? I do notice now that both Core Temp and CPU-Z show 4600, but RealTemp shows something in the region of 2800 - still higher than with Balanced, but not all the way to full speed. So maybe that's the issue.

I'm actually using CPUZ, yes. I might have to check the settings of my high performance power plan to make sure what minimum processor power state is set there.

But in my case, I'm at high performance and as soon as I stop doing anything in my computer, it drops to 1600MHz. I'm sure that the cpuz readings aren't off because my UPS wattage reading drops from about 280W to 95W.
post #118 of 369
Quote:
Originally Posted by kevindd992002 View Post


I'm actually using CPUZ, yes. I might have to check the settings of my high performance power plan to make sure what minimum processor power state is set there.

But in my case, I'm at high performance and as soon as I stop doing anything in my computer, it drops to 1600MHz. I'm sure that the cpuz readings aren't off because my UPS wattage reading drops from about 280W to 95W.

What do you have for the EPU settings in the BIOS? I don't know what they actually do, but maybe that could be part of it. I know mine are disabled.
post #119 of 369
Quote:
Originally Posted by Forceman View Post

What do you have for the EPU settings in the BIOS? I don't know what they actually do, but maybe that could be part of it. I know mine are disabled.

I don't have any EPU settings enabled at all. Even the EPU switch is disabled.
post #120 of 369
Quote:
Originally Posted by kevindd992002 View Post


I'm actually using CPUZ, yes. I might have to check the settings of my high performance power plan to make sure what minimum processor power state is set there.

But in my case, I'm at high performance and as soon as I stop doing anything in my computer, it drops to 1600MHz. I'm sure that the cpuz readings aren't off because my UPS wattage reading drops from about 280W to 95W.

thats why i said in the other post,
"doesnt downclock if its set to 100%, maybe not for everyone"

but alot of times when Forceman or me run into this question,
thats the solution for it smile.gif
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