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Complete Overclocking Guide: Sandy Bridge & Ivy Bridge | *ASRock Edition* - Page 296

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post #2951 of 9489
Quote:
Originally Posted by kennyparker1337 View Post

1)
2) The temps spiked because the FFT size changes after 5minutes. That's what the "Time to run each FFT" setting does. It switched from a medium (224k) FFT to a small (8k) FFT. Small FFTs generate more heat because they can be run in a much smaller time frame and so they work the CPU more.

So I shouldn't do negative offset then D:, I tried the 0.005 like the guide recommended but the temperature is goes around ~70 with voltage around ~1.3 isn't that bit high according to some posts in this thread? While with negative voltage, I got around 60 at 1.232...

how do I keep my temperature down while increasing the modifier and not mess with the negative offset voltage? Does increasing offset voltage guarantee that the temperature will increase?
does decreasing PLL voltage help with the temperature in some ways?


updates
After doing some more tweaking, I was able to get 4.5 without the negative offset.
using the 0.005 offset and .008 turbo with level 5 LLC seems to work fine for me, the temperature increase about 10C to 70C running at 1.248V.
Edited by fayt210 - 1/31/13 at 3:59pm
post #2952 of 9489
Quote:
Originally Posted by Heraclides View Post

I guys, I would like to OC my i7-3770k to 4,5GHz. What would be the best settings to have in stable on daily use (Gaming, movies, photoshoping, muzyk/..)? thanks for help.

It's different for everyone. To give you an idea, my 3770k is stable at 4.5ghz right now using the following settings:

Turbo Voltage- +0.08
Offset Voltage- +0.035
Load-Line- Level 5

V-Core hits 1.2 Under Load
Temps don't exceed 70C
 
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post #2953 of 9489
Quote:
Originally Posted by fayt210 View Post

Hi, First I would like to say good guide!!! really really good guide for someone like me with 0 knowledge in overclocking. I am ready to learn.
After doing some reading here and there, I OCed my system to 4.4, passed 5 minutes prime test. Didn't get a chance to do longer tests yet.

Before I am going any further, If anyone can answer some of my questions it would be great.
I want to know what's the consequences of using negative offset or if there are any?
I think I read it somewhere that says tried to keep offset as low as possible or was it to keep Voltage low to reduce temperature?

As for Prime95, why temperature suddenly spike after the 5 minutes test? It went from 19000 to 800000 all of sudden, what does these numbers means?



settings:
Offset Voltage: -0.045 (tried at 0.050, but prime crashed, why O.o? and not windows)
CPU Load-Line Calibration: Level 3
everything else same settings from the guide.

System specs:
Windows 8 (don't know why people hate it so much when it's quite awesome, for starter it has a nice screenshot shortcut ("windows key + prt Scr", no need to paste to paint >.>)
intel i7-3770k ivy bridge
CM hyper 212 plus DC
AsRock Z77 Extreme 4
CM 690 II Case
Corsair Vengeance DDR3 - 1600 16gb

Thanks in advance

I see that your running a -0.045 offset, 1.232v is not a bad full load voltage. What you will need to do is run P95 and see how long it lasts. If it fails then you will need to increase your vcore by using -0.040, -0.035, -0.030v until it becomes stable.
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post #2954 of 9489
so... negative offset is not an issue? Sorry I am really noob...
post #2955 of 9489
Quote:
Originally Posted by fayt210 View Post

So I shouldn't do negative offset then D:, I tried the 0.005 like the guide recommended but the temperature is goes around ~70 with voltage around ~1.3 isn't that bit high according to some posts in this thread? While with negative voltage, I got around 60 at 1.232...

how do I keep my temperature down while increasing the modifier and not mess with the negative offset voltage? Does increasing offset voltage guarantee that the temperature will increase?
does decreasing PLL voltage help with the temperature in some ways?


updates
After doing some more tweaking, I was able to get 4.5 without the negative offset.
using the 0.005 offset and .008 turbo with level 5 LLC seems to work fine for me, the temperature increase about 10C to 70C running at 1.248V.

Your fine it depends on the chip. If your only overclocking to say a 40 multi then most likely you will be using a negative offset because you would be overvolting the cpu at 1.3v(+0.005 offset) and 4ghz.

On average with a 45 multi or higher you wont be using a negative offset but there is nothing wrong with using a negative offset. The reason why its written in the guide that it doesn’t recommend it is because its assuming your starting w/ a 45 multi. Even w/ my 45 mulit i was able to take my offset down to a -0.025 and have an idle vcore of .960v in windows.

You just have to be careful with negative offset because it decreases you idle vcore along w/ you full load vcore at the same time. So you have to pay close attention that your idle vcore doesn't dip too low.

Whats your CPU-z idle vcore when the multi decreases to 16?

Change your LLC to level 2 or 3
Edited by Lucky 23 - 1/31/13 at 4:21pm
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post #2956 of 9489
Quote:
Originally Posted by Lucky 23 View Post

Your fine it depends on the chip. If your only overclocking to say a 40 multi then most likely you will be using a negative offset because you would be overvolting the cpu at 1.3v(+0.005 offset) and 4ghz.

On average with a 45 multi or higher you wont be using a negative offset but there is nothing wrong with using a negative offset. The reason why its written in the guide that it doesn’t recommend it is because its assuming your starting w/ a 45 multi. Even w/ my 45 mulit i was able to take my offset down to a -0.025 and have an idle vcore of .960v in windows.

You just have to be careful with negative offset because it decreases you idle vcore along w/ you full load vcore at the same time. So you have to pay close attention that your idle vcore doesn't dip too low.

Whats your CPU-z idle vcore when the multi decreases to 16?

Change your LLC to level 2 or 3

This cleared almost all my questions, thank you for the answers. At idle it's 1.048, but very unstable even when I am not doing anything. It's constantly going up and down. Why is that?
Let me try lvl 2 or 3 and see what happen.
Edited by fayt210 - 1/31/13 at 4:32pm
post #2957 of 9489
Yea for instance i just went into bios an set my 2500k at a 40 mulit and a +0.005 offset, Rebooted and went back into bios and my bios vcore was 1.304 which is way too high for 4ghz so the only way to not overvolt the cpu is by going into the negative offsets.

So your 1.048v idle vcore is with a 45 multi, +0.005 offset and a +0.008 turbo correct?

The vcore going up and down is normal, my idle voltage goes between 1.000v-1.008v
Edited by Lucky 23 - 1/31/13 at 4:43pm
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post #2958 of 9489
Quote:
Originally Posted by Lucky 23 View Post

Yea for instance i just went into bios an set my 2500k at a 40 mulit and a +0.005 offset, Rebooted and went back into bios and my bios vcore was 1.304 which is way too high for 4ghz so the only way to not overvolt the cpu is by going into the negative offsets.

So your 1.048v idle vcore is with a 45 multi, +0.005 offset and a +0.008 turbo correct?

The vcore going up and down is normal, my idle voltage goes between 1.000v-1.008v

when I put the setting to lvl 2 my vcore increased to 1.320, and temperature at 75C average. Does it means that I need to decrease the offset to below 0? since I am already at 0.005? it's idle voltage is at 1.056.

What does it mean when the guide said "find the setting that will get you the same Vcore that is says in BIOS" for LLC? How do you know the Vcore in bios when we're using offset? confused <<<<<---
Edited by fayt210 - 1/31/13 at 5:01pm
post #2959 of 9489
For you it should show your bios vcore under the hardware monitor tab in bios where you can see the fans and their current rpm..

That might be a little high, you can try a LLC level 3 and see how that effects you vcore w/ the same settings.

Watch your idle voltage though having it a 1.000v is normal maybe slightly lower it just depends. When you lower offset though this will also bring down your full load vcore.

What i would try is maybe a -0.010 offset and leave turbo at the +0.008 then boot into windows and check your idle vcore, see how much closer it gets to 1.000v then run P95 for 5 minutes and see what your full load vcore is at in CPU-z then post those numbers here.

Usually if your idle vcore is not stable it will crash at idle or during light load such as browsing the internet.

For my 2500k my full load vcore in CPU-z goes between 1.296-1.304 w/ a 45 mulit. Most people w/ a 45 multi are around 1.30v to 1.32v
Edited by Lucky 23 - 1/31/13 at 5:12pm
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post #2960 of 9489
Quote:
Originally Posted by Lucky 23 View Post

For you it should show your bios vcore under the hardware monitor tab in bios where you can see the fans and their current rpm..

That might be a little high, you can try a LLC level 3 and see how that effects you vcore w/ the same settings.

Watch your idle voltage though having it a 1.000v is normal maybe slightly lower it just depends. When you lower offset though this will also bring down your full load vcore.

What i would try is maybe a -0.010 offset and leave turbo at the +0.008 then boot into windows and check your idle vcore, see how much closer it gets to 1.000v then run P95 for 5 minutes and see what your full load vcore is at in CPU-z then post those numbers here.

Usually if your idle vcore is not stable it will crash at idle or during light load such as browsing the internet.

For my 2500k my full load vcore in CPU-z goes betwen 1.296-1.304 w/ a 45 mulit. Most people w/ a 45 multi are around 1.30v to 1.32v w/ a 4.5ghz overclock

In the bios, there is a number going around ~1.112 is this the number that I am trying to get close to at idle state? There are 3 other numbers, not sure what they are...
Edited by fayt210 - 1/31/13 at 5:28pm
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