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Complete Overclocking Guide: Sandy Bridge & Ivy Bridge | *ASRock Edition* - Page 289

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post #2881 of 9531
Quote:
Originally Posted by eXultanCe View Post

Can anyone explain what is the difference between increasing offset voltage and turbo voltage? I see some people leave offset at 0.005v and increase turbo as needed while I see some people increase offset and leave turbo at off or 0.004v.

Your offset increases/decreases your idle & full load vcore at the same time. Additional Turbo voltage only increases vcore at full load. You will see different offsets and turbo voltages because people are running all different Multipliers and each cpu is different so it might take more or less vcore then another members cpu.

A -0.005/+0.005 is a starting point depending on what your idle vcore is at this offset at X multiplier. We will need to know what overclock your trying to achieve and what you idle vcore & full load vcore is w/ this offset. Then we can go from there in determining if you should increase offset and how much you might have to increase turbo.

My overclock for instance is Offset only at a +0.015, turbo voltage on auto. My CPU-z idle vcore is a 1.000v and my CPU-z full load vcore is 1.296-1.304.

Now if i wanted to i could switch to a +0.005 offset and roughly a +0.020 turbo would give me a CPU-z idle vcore of .996v and a similar full load vcore.

Ive even taken my offset down to a -0.025v which gave me a 0.960v CPU-z idle vcore but i would have to compensate for that heavy negative offset with a higher turbo voltage to get my full load vcore similar to where its at w/ the original +0.015. Additional turbo voltage i think needed to be around a +0.065 or higher.

Basically using Offset and turbo are a way of fine tuning your voltages so that you have a low idle vcore and a stable full load vcore.
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post #2882 of 9531
Just wanted to say thanks for the guide, helped me out no end to get a pretty easy overclock. Had a 4.6 oc going before, but after updating my UEFI at the weekend I lost all my settings, so decided to give it another bash.

Managed to get 4.8 out've it so far tonight with:

Turbo Boost: +0.137V
CPU Offset: +0.040V (another guide I read recommended starting off with 0.050V)
CPU LLC: Level 2

With that vcore fluctuates between 1.360 - 1.376 during blend test (no errors in eventvwr either)
Temperature is between 60 - 68c , although did have one brief spike up to 98, but hasn't gone anywhere near that again in the last 40 minutes.

Would you guys recommend pushing on for more?

Also is it worth dropping the CPU offset and putting more turbo boost on instead? Am I right in presuming I can just keep cranking up the turbo boost until I get near 1.5 on the vcore?

(last system I oc'd was C2D E6600 on an ASUS board, things are bit different now!). Thanks in advance
post #2883 of 9531
This might be helpful to those who are trying to reach 5ghz+ overclocks

recently I was able to achieve 5ghz stable using
+.005 as my offset.
and .270 as my turbo

I passed all IBT, Linx, Prime
Ive been using at this setting for awhile until i saw whea errors after playing a game.

After doing some research i saw that many people encounter whea errors on higher overclock when they use ultra high or high llc.
On our boards i believe its llc1 and llc2.

at the 5.0ghz I was using llc3.

although the cpu never bsod or freezed, i was very annoyed the fact that i was getting these whea errors.
So i decided to use llc5. I noticed that after switching to llc5 my frequency at cpuz stopped fluctuating so much and stayed within the 5ghz. however the idle load was still under 1.0vcore .

To fix the low load problem I upped the offset to and brought down turbo accordingly.
I made it so that my vcore idles at 1.20 and tops off at the same vcore under load.

I havent faced any whea errors after this change. However I want to be certain, so i want to see if anyone has come across similar issues.
I gathered that the cpu vcore was dropping way too fast way too quickly after load when it becomes idle.

Do you believe llc5 was a good choice for me as opposed to llc3 which i used prior to change. and... do you believe that upping the offset had fixed my problem???

So far i havent seen a single whea but i want to be sure.


if anyone can help i will greatly appreciate
post #2884 of 9531
Quote:
Originally Posted by Lucky 23 View Post

Your offset increases/decreases your idle & full load vcore at the same time. Additional Turbo voltage only increases vcore at full load. You will see different offsets and turbo voltages because people are running all different Multipliers and each cpu is different so it might take more or less vcore then another members cpu.

A -0.005/+0.005 is a starting point depending on what your idle vcore is at this offset at X multiplier. We will need to know what overclock your trying to achieve and what you idle vcore & full load vcore is w/ this offset. Then we can go from there in determining if you should increase offset and how much you might have to increase turbo.

My overclock for instance is Offset only at a +0.015, turbo voltage on auto. My CPU-z idle vcore is a 1.000v and my CPU-z full load vcore is 1.296-1.304.

Now if i wanted to i could switch to a +0.005 offset and roughly a +0.020 turbo would give me a CPU-z idle vcore of .996v and a similar full load vcore.

Ive even taken my offset down to a -0.025v which gave me a 0.960v CPU-z idle vcore but i would have to compensate for that heavy negative offset with a higher turbo voltage to get my full load vcore similar to where its at w/ the original +0.015. Additional turbo voltage i think needed to be around a +0.065 or higher.

Basically using Offset and turbo are a way of fine tuning your voltages so that you have a low idle vcore and a stable full load vcore.

Wow, thanks for the explanation. That was awesome.

So, my Core Voltage idle is at 0.960 to about 1.120v. Under full load it will reach 1.340v. As suggested by others and the guide, I boosted my Turbo Voltage as needed to achieve a higher OC. I am at 4.6Ghz, Offset at default +0.005v and Turbo at +0.056v I believe. As far as temps go, I left a prime test over night which reached up to 80C (but I won't be doing anything intense except gaming for long period of time). The test crashed after 4 hours on core1, the other 3 cores ran for over 12h. I've been only messing with the turbo voltage. Today I will up that once again so that I can once again try to run prime for 12h without crashing (or should I not worry about running it for 12h, as guide said for 1h would be fine for normal use?)

Again, thanks for that explanation.
post #2885 of 9531
Quote:
Originally Posted by ByeByeFive View Post

This might be helpful to those who are trying to reach 5ghz+ overclocks

recently I was able to achieve 5ghz stable using
+.005 as my offset.
and .270 as my turbo

I passed all IBT, Linx, Prime
Ive been using at this setting for awhile until i saw whea errors after playing a game.

After doing some research i saw that many people encounter whea errors on higher overclock when they use ultra high or high llc.
On our boards i believe its llc1 and llc2.

at the 5.0ghz I was using llc3.

although the cpu never bsod or freezed, i was very annoyed the fact that i was getting these whea errors.
So i decided to use llc5. I noticed that after switching to llc5 my frequency at cpuz stopped fluctuating so much and stayed within the 5ghz. however the idle load was still under 1.0vcore .

To fix the low load problem I upped the offset to and brought down turbo accordingly.
I made it so that my vcore idles at 1.20 and tops off at the same vcore under load.

I havent faced any whea errors after this change. However I want to be certain, so i want to see if anyone has come across similar issues.
I gathered that the cpu vcore was dropping way too fast way too quickly after load when it becomes idle.

Do you believe llc5 was a good choice for me as opposed to llc3 which i used prior to change. and... do you believe that upping the offset had fixed my problem???

So far i havent seen a single whea but i want to be sure.


if anyone can help i will greatly appreciate

im curently running 5ghz offset +0.005 LLC 2. i raised my turbo to 0.160 because @ 0.146 i was getting whea errrors but i passed 12 hrs of prime95 without any.
so i will be seeing if i get any more whea errors and if i do i might try the way u mentioned maybe LLC 4 thou

but i would also like to hear from someone that knows more than me about this also
Edited by lilchronic - 1/30/13 at 1:26pm
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post #2886 of 9531
Quote:
Originally Posted by lilchronic View Post

im curently running 5ghz offset +0.005 LLC 2. i raised my turbo to 0.160 because @ 0.146 i was getting whea errrors but i passed 12 hrs of prime95 without any.
so i will be seeing if i get any more whea errors and if i do i might try the way u mentioned maybe LLC 4 thou

Just because you pass prime95 24hrs doesnt mean you wont get whea.

For me i can pass prime 95 95 hrs and ill get a whea doing normal task.
So i opted to the method i mentioned above and no more whea
post #2887 of 9531
Plus at higher oc, u need to pay more attention to idle vcore.
post #2888 of 9531
Quote:
Originally Posted by ByeByeFive View Post

Plus at higher oc, u need to pay more attention to idle vcore.
the last 2 whea errors i got was while playin crysis 3 beta
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post #2889 of 9531
Quote:
Originally Posted by lilchronic View Post

the last 2 whea errors i got was while playin crysis 3 beta

Yea it appears mostly when playing games.
I got the whea errors when i was playing starcraft 2.
im just saying , dont be so happy after you pass linx or prime 95. you should run your computer and use it for couple of weeks before you call it 100% stable
post #2890 of 9531
Quote:
Originally Posted by ByeByeFive View Post

Just because you pass prime95 24hrs doesnt mean you wont get whea.

For me i can pass prime 95 95 hrs and ill get a whea doing normal task.
So i opted to the method i mentioned above and no more whea

What board are you using? (no info on sig rig) What kind of temps are you getting and with what kind of cooling?
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