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post #19601 of 22450
i'm trying to setup my voltage stuff to let it drop down on idle, but I must be missing something.

C-states are on auto
EIST is on.
Windows power profile is set to balanced, CPU minimum is changed to 10% rather than 5%.

Am I missing a setting somewhere?
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post #19602 of 22450
Enable cstates.
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post #19603 of 22450
Quote:
Originally Posted by jdorje View Post

Enable cstates.

As in:

Cstates:

Auto
Disabled
[enabled]


?
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post #19604 of 22450
Quote:
Originally Posted by maddangerous View Post

As in:

Cstates:

Auto
Disabled
[enabled]


?

Yeah. You'd think with auto that they'd be on but some boards seem to disable them...maybe for any overclocked settings.
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post #19605 of 22450
Quote:
Originally Posted by jdorje View Post

Yeah. You'd think with auto that they'd be on but some boards seem to disable them...maybe for any overclocked settings.

Maybe. How long does it take for c-states to kick on? I haven't noticed a drop yet
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post #19606 of 22450
Quote:
Originally Posted by maddangerous View Post

Maybe. How long does it take for c-states to kick on? I haven't noticed a drop yet

Vid is unaffected by cstates. And afaict they never drop voltage in the bios.

But if you're sitting on the desktop you should be at low vcore most of the time. If there's cpu intensive background tasks (plex etc) then maybe not.

The difference in power use and temps is pretty large also.
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post #19607 of 22450
Quote:
Originally Posted by jdorje View Post

Vid is unaffected by cstates. And afaict they never drop voltage in the bios.

But if you're sitting on the desktop you should be at low vcore most of the time. If there's cpu intensive background tasks (plex etc) then maybe not.

The difference in power use and temps is pretty large also.

I know Vcore and VID aren't the same, but Vcore isn't dropping. Actually, 2 of my cores have hit a max of 1.3. Hold on I'll grab a screenshot.

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post #19608 of 22450
Yeah and your idle temps of 40c are consistent with cstates not working. Next thing to test is different windows power modes. Balanced mode is supposed to work with cstates but test power saver and see if it's different.

If you have a way to watch power use (kill a watt) the difference should be stark. With both C3 and c6/c7 it should be 20w lower on idle.
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post #19609 of 22450
Quote:
Originally Posted by jdorje View Post

Yeah and your idle temps of 40c are consistent with cstates not working. Next thing to test is different windows power modes. Balanced mode is supposed to work with cstates but test power saver and see if it's different.

If you have a way to watch power use (kill a watt) the difference should be stark. With both C3 and c6/c7 it should be 20w lower on idle.

Alright. To be clear: I've set the voltage manually in the bios to 1.25v. As well as DRAM to 1.65v.

Power saver is on now, without voltage dropping down in power saving I'm using roughly 72 watts measured on my Kill-a-watt.

I'm curious as to why the volts are going over what I set in the bios?
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Deepthought
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post #19610 of 22450
I've heard some boards just won't work right with cstates. In that case you probably want to switch to adaptive voltage. Seems like eist is working so with adaptive the voltage (vid in this case) should drop some.

The goal is to have lower idle power use. If you have the kill a watt focus on that.

It's normal for vcore to be higher than vid. I always assumed this was some sort of llc within the fivr. .03v higher is a lot but not unheard of.
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