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post #2551 of 6510
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Quote:
Originally Posted by DeadlyDNA View Post

I apologize let me re-phrase the question a little better.

Is there any advantage besides highr clock speed to use a higher strap vs multi as in say benchmarking or system performance.
Definitely . cause im pretty certain in bechmarking a QPI of over 5000mhz scores higher in memory smile.gif
post #2552 of 6510
Im wondering if my g-skill 1333mhz ram is holding back the overclock and performance.
Atm it is running @ 1640mhz with 1.55v

Would using faster ram improve overclock and stability?
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post #2553 of 6510
Hey all, I've just been messing around with my oc today and I've noticed a few things I want to ask you guys about...
I've settled on a 38 x 126.5 (4800) oc @1.34V (manual set), everything is stable and lovely.

Here's what I discovered: If I have that oc running with no speedstep or c1e enabled it's stable at 1.30V, and in hwmonitor my cpu powers package reads around 90W on idle.
When I keep the same clock settings and enable speedstep AND c1e it is unstable at that 1.30V and I need to go up to 1.34V. With these settings hwmonitor gives a powers package reading of around 40W.

Does this mean that despite there not being any Vcore throttling (like you would have with a 100mhz bclk) or cpu speed throttling (in cpuz) that I am in fact using around half the power at idle having speedstep and c1e enabled?

I fiddled with some other things and with a 100mhz bclk x 43 @ +.03V offset voltage (gives around 1.335V at peak) with speedstep and c1e enabled the reported Wattage sits at around 30W idle. Does this mean that the power saving you can get by having the voltage throttle back under idle accounts for around 10W (proportionately)?

Thanks Guys!
Edited by Aphid - 2/14/13 at 11:14pm
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post #2554 of 6510
Quote:
Originally Posted by DeadlyDNA View Post

I apologize let me re-phrase the question a little better.

Is there any advantage besides highr clock speed to use a higher strap vs multi as in say benchmarking or system performance.
This what ASUS OC guide at benchmarkreviews.com says about them:-
"The Strap will allow for a wide range of default operating dividers/frequencies.

In addition when potentially higher multipliers have weaker load tolerances a combination of strap with multiplier may yield superior stability."


Emphasize the word "may" there.
Quote:
Originally Posted by Aphid View Post

Hey all, I've just been messing around with my oc today and I've noticed a few things I want to ask you guys about...
I've settled on a 38 x 126.5 (4800) oc @1.34V (manual set), everything is stable and lovely.

Here's what I discovered: If I have that oc running with no speedstep or c1e enabled it's stable at 1.30V, and in hwmonitor my cpu powers package reads around 90W on idle.
When I keep the same clock settings and enable speedstep AND c1e it is unstable at that 1.30V and I need to go up to 1.34V. With these settings hwmonitor gives a powers package reading of around 40W.

Does this mean that despite there not being any Vcore throttling (like you would have with a 100mhz bclk) or cpu speed throttling (in cpuz) that I am in fact using around half the power at idle having speedstep and c1e enabled?

I fiddled with some other things and with a 100mhz bclk x 43 @ +.03V offset voltage (gives around 1.335V at peak) with speedstep and c1e the reported Wattage sits at around 30W idle. Does this mean that the power saving you can get by having the voltage throttle back under idle accounts for around 10W (proportionately)?

Thanks Guys!
The lower power consumption when idle is because C1E is enabled, even when using manual voltage. CPU cores will rapidly transition back & forth between C0 & C1E states. When there's task to be process, CPU can quickly enter C0 state & when task is done it will enter C1E state.

If you enabled C3/C6 states too, especially C6 state, it will helps lower power consumption when idle. When C6 enabled, just like what happen with C1E, CPU will rapidly transition back & forth between C0 and C6 states. In C6 state, the voltage drops down to nearly zero. When using C6, majority of the time individual cores enter C6 states. So, when using C6, there shouldn't be any difference in power consumption with either offset voltage or manual voltage. Therefore, you can continue using manual voltage.

I don't monitor my idle power consumption before but while I'm writing this post, CPU power consumption is ~25 - 26W with lowest is ~23W. C1E, C3 & C6 are enabled (not Auto). You can monitor C States using RealTemp T|I version.
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post #2555 of 6510
Quote:
Originally Posted by kizwan View Post

If you enabled C3/C6 states too, especially C6 state, it will helps lower power consumption when idle. When C6 enabled, just like what happen with C1E, CPU will rapidly transition back & forth between C0 and C6 states. In C6 state, the voltage drops down to nearly zero. When using C6, majority of the time individual cores enter C6 states. So, when using C6, there shouldn't be any difference in power consumption with either offset voltage or manual voltage. Therefore, you can continue using manual voltage.

I don't monitor my idle power consumption before but while I'm writing this post, CPU power consumption is ~25 - 26W with lowest is ~23W. C1E, C3 & C6 are enabled (not Auto). You can monitor C States using RealTemp T|I version.

You are The Man! That is fantastic info thankyou so much. I've now enabled C3 6 and 7 and i'm 10W reported lower than with just c1e. I was under the impression power saving features weren't really doable with this chip on a strap. But this is awesome news.
Also, RealTemp T|I edition is amazing. It is reporting that the cpu is actually throttling down a bit, to 4300ish from 4800.
biggrin.gif:D:D
Stoked.
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post #2556 of 6510
I know about C3 / C6 & their benefit but for manual voltage vs. offset voltage & idle power consumption with C6 enabled, I learned that a couple days ago from unclewebb, the ThrottleStop author. smile.gif
Edited by kizwan - 2/15/13 at 12:22am
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post #2557 of 6510
Quote:
Originally Posted by Wookieelover View Post

Im wondering if my g-skill 1333mhz ram is holding back the overclock and performance.
Atm it is running @ 1640mhz with 1.55v

Would using faster ram improve overclock and stability?

You should be able to oc your cpu fine with that mem, it will become unstable as you push the ram speed out of spec. Try and set the ram speed to something closer to the 1333mhz default and there should be no instability caused by ram.
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post #2558 of 6510
Quote:
Originally Posted by kizwan View Post

I know about C3 / C6 & their benefit but for manual voltage vs. offset voltage & idle power consumption with C6 enabled, I learned that a couple days ago from unclewebb, the ThrottleStop author. smile.gif

Thankyou unclewebb!
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post #2559 of 6510
Quote:
Originally Posted by Aphid View Post

Hey all, I've just been messing around with my oc today and I've noticed a few things I want to ask you guys about...
I've settled on a 38 x 126.5 (4800) oc @1.34V (manual set), everything is stable and lovely.

Here's what I discovered: If I have that oc running with no speedstep or c1e enabled it's stable at 1.30V, and in hwmonitor my cpu powers package reads around 90W on idle.
When I keep the same clock settings and enable speedstep AND c1e it is unstable at that 1.30V and I need to go up to 1.34V. With these settings hwmonitor gives a powers package reading of around 40W.

Does this mean that despite there not being any Vcore throttling (like you would have with a 100mhz bclk) or cpu speed throttling (in cpuz) that I am in fact using around half the power at idle having speedstep and c1e enabled?

I fiddled with some other things and with a 100mhz bclk x 43 @ +.03V offset voltage (gives around 1.335V at peak) with speedstep and c1e enabled the reported Wattage sits at around 30W idle. Does this mean that the power saving you can get by having the voltage throttle back under idle accounts for around 10W (proportionately)?

Thanks Guys!

That voltage seems really really low for that overclock. What stress tests have you done for stability? IBT and Prime95 are a must.
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post #2560 of 6510
Thread Starter 
Okay 9/2/13 ' s 4.9........
smile.gif

4.9 I am P95'n on blend as I post.......
biggrin.gif

Okay that's a 10c -14c drop in temps at 100% load , not a bad effort me thinks wheee.gif

After 3hrs P95 blend.......55c core 0 100% load specool.gif

After bench temps.........
Edited by HOMECINEMA-PC - 2/15/13 at 5:53am
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