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post #5961 of 10368
Now I'm up to 1.352V and still not stable at 4.5GHz. At this point should I just drop down to 4.4GHz and hope for a much lower voltage?
post #5962 of 10368
Thread Starter 
Quote:
Originally Posted by LearnIIBurn View Post

Quote:
Originally Posted by munaim1 View Post

Increase the LLC to ultra high and increase the voltage to 1.32v and report back smile.gif set the multiplier to 45 while your at it, 4.5ghz should be a walk in the park for these chips smile.gif

So I went in and did as instructed:

Multi at 45 (I'm hoping the Multi I'm changing is the right one, Turbo Multi right?)
PLL Overvoltage Disabled
Memory set to 1600 (default)
LLC is on Ultra High
VRM Freq: 350
Phase and Duty control to Extreme
CPU Current Capability is at 140%
Manual Voltage set to 1.32
CPU PLL Voltage set to 1.7

Still can't boot into Windows. Gets stuck at that same spot in the splash screen. Maybe I got one of those sweet ass CPU's that needs extra love and care.

Could it be something with Windows actually? Maybe I should reformat and remove my RAID 0 or something. It boots completely stable though at 4.2 with stock voltage. Bled test ran 15 hours and BF3 was running champion like smile.gif

Try enabling cpu PLL overvoltage. It's usually required for high multiplier's but it could required in your case.

Quote:
Originally Posted by Joesh View Post

Now I'm up to 1.352V and still not stable at 4.5GHz. At this point should I just drop down to 4.4GHz and hope for a much lower voltage?

Please go to your profile and fill in your system spec so we know what you're running. Also post your BIOS settings as you have them. thumb.gif
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post #5963 of 10368
Quote:
Originally Posted by Mad Skillz View Post

Quote:
Prime95 version 26.6 is better at testing stability with sandy bridge on Windows 7 SP1, but you'll probably need more voltage to get stable @ 5ghz.
Quote:
Originally Posted by Lord Xeb View Post

*sarcasm* Uh huh.
If that were the case then why didn't my processor fail after 21 hours on the older prime and the 4 other 12 hour runs I have done before it? Also I pass 25 runs of LinX AVX w/ 90% of my ram used.

Wow.. what a *****y response. I was just trying to help you by letting you know there was a newer version of Prime95.

The 25.11 version you were using is from March 2010. The newer one is designed to test sandy bridge and uses the newer AVX instructions, so I'd trust it as a stability test a lot more than the old one.

When I ran it on one of my older 2500k's I needed more voltage, so I was just trying to give you a heads up. However, another guy with a good overclocker that I just saw yesterday didn't need any extra voltage, so I guess it just depends.

I also don't follow your logic. If I told you the older version doesn't test sandy bridge as well, how would you passing 21 hours with it mean anything? You could be stable by the old one but fail almost immediately with the new one.

Additionally, last time I checked, LinX (even the newer one with AVX) was known for being easier to pass on sandy bridge than the newer Prime95, so I don't think many people use it anymore (I never hear anyone talking about it at least). If anyone knows if this has changed with a newer LinX release, feel free to correct me if I'm wrong.

Sorry about that I wasn't in a good mood.

I ran 26.6 P95 and I still passed with the same voltages and clocks with ease. See OP and my entery into sandy stable.

Oh and because I like to boast and stroke my own ego338
Edited by Lord Xeb - 12/7/11 at 5:51pm
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post #5964 of 10368
Quote:
Originally Posted by munaim1 View Post

Please go to your profile and fill in your system spec so we know what you're running. Also post your BIOS settings as you have them. thumb.gif

Ok wil do.
post #5965 of 10368
So I can't get my BIOS screenshots to work... not sure where they are saving since I have 3 externals and a USB drive plugged in. I'll just manually type everything...

Ok, I took pictures of everything in my bios with a camera. Here it all is: http://imgur.com/a/lInYg

Here is what those settings give me (Note: I am not even sure I am stable at this level, I was able to run a prime95 1344 for 15 minutes at 1.37V, but at 1.34-1.35V earlier worker 1 was giving me a fatal error, rounding error message, either that or a BSOD 124.

FHGoA.png
eXle3.png
Edited by Joesh - 12/7/11 at 7:03pm
post #5966 of 10368
Over the past few days I've been lurking and reading this thread for priceless info and amazing advice. I can't even begin to thank everyone enough for help and guidance simply reading through this thread has provided!

I'm also very pleased to say my latest rig is coming along better then I could have hoped and is in the final refinement stages. All the basic OCing stages are complete and I'm getting fairly stable 5.0Ghz OC's at 1.368vcore. (I manually stopped the last one at 4 hours) That said, I do have a dilemma for which any advice would be greatly appreciated.

I've tested a few different setting combinations and I'm unsure which is the more ideal route?
A: High LLC combined with a + offset to reach 1.1v~ idle / 1.368v~ load
B: Very High LLC combined with a - offset to reach 1v~ idle / 1.368v~ load

When a BSoD takes 5-6 hours to pop up, I know I'm on the edge of 24/7 stability but I'm confused as to which of these two paths would be better to work with for my final adjustments. If my idle vcore is too low, it could lead to BSoD. Yet, how low is too low? Is using a negative offset value reasonable if it requires something in a 0.02-0.04 range?

-Tazz

PS: Thx again to everyone who's helped with this thread. Oh... w00t 1st post! thumb.gif
Edited by T a z z - 12/7/11 at 7:18pm
post #5967 of 10368
just need some help with getting this oc stable for the 12 hour blend test it ran for 2 hours last night and crashed at 14k according to the notepad results.

CPU core - 5001.6mhz
bus speed - 100mhz
core voltage - 1.464v

BIOS settings are the same as my post before just load line is at level 8 now at 1.455v
when the CPU is on 100% load the vcore jumps too around 1.5 -1.49
idle temps are from 30 to 36 load temps are from 61 to 68

strange thing is it will play demanding games for long periods of time and not crash or get blue screen errors but when i run the bled test it cant handle it for more than 3 hours thumbsdownsmileyanim.gif


any help would be much appreciated

cheers
Ryan.
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post #5968 of 10368
Thread Starter 
Quote:
Originally Posted by Joesh View Post

So I can't get my BIOS screenshots to work... not sure where they are saving since I have 3 externals and a USB drive plugged in. I'll just manually type everything...

Ok, I took pictures of everything in my bios with a camera. Here it all is: http://imgur.com/a/lInYg

Here is what those settings give me (Note: I am not even sure I am stable at this level, I was able to run a prime95 1344 for 15 minutes at 1.37V, but at 1.34-1.35V earlier worker 1 was giving me a fatal error, rounding error message, either that or a BSOD 124.

Settings look okay to me, you're missing a few settings because of the motherboard you have, but still it shouldn't matter that much. Continue increasing the vcore until you reach stability. You could also try and see how VCCIO helps, somewhere between stock and 1.125v could help with overall stability.



Quote:
Originally Posted by T a z z View Post

Over the past few days I've been lurking and reading this thread for priceless info and amazing advice. I can't even begin to thank everyone enough for help and guidance simply reading through this thread has provided!

I'm also very pleased to say my latest rig is coming along better then I could have hoped and is in the final refinement stages. All the basic OCing stages are complete and I'm getting fairly stable 5.0Ghz OC's at 1.368vcore. (I manually stopped the last one at 4 hours) That said, I do have a dilemma for which any advice would be greatly appreciated.

I've tested a few different setting combinations and I'm unsure which is the more ideal route?
A: High LLC combined with a + offset to reach 1.1v~ idle / 1.368v~ load
B: Very High LLC combined with a - offset to reach 1v~ idle / 1.368v~ load

When a BSoD takes 5-6 hours to pop up, I know I'm on the edge of 24/7 stability but I'm confused as to which of these two paths would be better to work with for my final adjustments. If my idle vcore is too low, it could lead to BSoD. Yet, how low is too low? Is using a negative offset value reasonable if it requires something in a 0.02-0.04 range?

-Tazz

PS: Thx again to everyone who's helped with this thread. Oh... w00t 1st post! thumb.gif

Unfortunately the question "how low is too low?" is difficult to answer. To eliminate that out of the question I would and have used HIGH LLC as apposed to Ultra high to get a higher idle voltage, that's not to say that ultra high LLC with a lower idle voltage will cause idle bsod. It's just about eliminating that first hand. I would recommend that you use HIGH LLC when using offset voltage. If you take a look at my other thread HERE, scroll down to the part where it says "LLC Setting and it's impact on overclocking with the use of Offset voltage" and have a read on that.



Quote:
Originally Posted by KatieBoner View Post

just need some help with getting this oc stable for the 12 hour blend test it ran for 2 hours last night and crashed at 14k according to the notepad results.

CPU core - 5001.6mhz
bus speed - 100mhz
core voltage - 1.464v

BIOS settings are the same as my post before just load line is at level 8 now at 1.455v
when the CPU is on 100% load the vcore jumps too around 1.5 -1.49
idle temps are from 30 to 36 load temps are from 61 to 68

strange thing is it will play demanding games for long periods of time and not crash or get blue screen errors but when i run the bled test it cant handle it for more than 3 hours thumbsdownsmileyanim.gif


any help would be much appreciated

cheers
Ryan.

Reduce the LLC level to around 7 or 6, it should hopefully reduce the vdroop and not spike it that high, obviously you will have to compensate the vcore by increasing the voltage. By the way what was the error code? Not all of these chips are guaranteed to run 5ghz stable, some of the lucky ones are able to do below 1.4v, some around the 1.45v, there are some that need close 1.5v and there are some that it won't even run 5ghz no matter what the vcore is.

Please post your BIOS screenshots as you have them so we can take a closer look smile.gif Please use the OCN image attachment method (button next to the paerpclip called image)

Thanks
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post #5969 of 10368
Hello, here is my config:

My config:
CPU: i7 2600K
cm: maximus IV gene-Z bios 0706
RAM: DDR3-1600 Dominator X 4x 2GB 8.8.8.24.2

PSU: OCZ1000W
Cooling: H100



I managed to stabilize my OC to 4.5Ghz 1.335V and 1.44V for 4.8Ghz OC
My goal ultimately being the 5.0GHz if possible or my 4.8Ghz but below 1.4V

Stability test in OCCT for 10 h


For the time they are correct, I went up to 65 ~ 70 ° wide max in full burn in a 4.8Ghz OCCT.

help me not to exceed 1.4V
I send you the pictures in the bios can


voici les photos de mon BIOS a 4.8GHZ

111124202949.png

111124203019.png

111124203045.png

111124203106.png

111124203117.png

111124203130.png

111124203139.png

et voila mon setting pour un 4.8Ghz
temperature Max en trest test sous OCCT 68-70-72-69
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post #5970 of 10368
Here's an overclock I just did for a friend's build, pretty decent chip considering the **** tier cooling it's using wink.gif But hey, a $5 heatsink and he got 4.6ghz out of his chip while staying under 75C at full load; A winner in my book!

57fp6.jpg
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