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i7-3820/ASRock X79 OC Help

post #1 of 31
Thread Starter 
So I just picked up an i7-3820 and an ASRock X79 Extreme6

Right now I have the i7-3820 clocked at 4.75GHz (125x38) @ 1.384v and it's stable. When I bump it up to 39x(4.875GHz) or 40x(5GHz) even with 1.5v it crashes nearly instantly. It doesn't make sense to me..


Now.. I previously mainly used Asus boards and I was really used to their bios.. and this ASRock bios has a lot of different options, at least naming wise. On my last Asus board(it was LGA 1155 if that makes a difference), I had an option called PLL Overvoltage that I had to enable to get the higher clocks stable, but I can't find it anywhere on the ASRock bios and I've looked everywhere several times. I suspect I need this to get past 4.75GHz.

Another thing is I don't have an option for offset mode for the CPU voltage.. it just gives me either "fixed" or "auto".. what gives? I'm on the latest bios.
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post #2 of 31
Thats weird, you should have the offset option in voltage...and there is a PLL voltage setting somewhere, but I can't remember where as I haven't had to mess with it yet....under cpu config maybe?

Did you find you had to disable power saving states in order to reach your OC? You are setting your clocks manually and not using the easy oc feature right?
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post #3 of 31
Thread Starter 
Quote:
Originally Posted by MAKATTACK View Post

Thats weird, you should have the offset option in voltage...and there is a PLL voltage setting somewhere, but I can't remember where as I haven't had to mess with it yet....under cpu config maybe?
Did you find you had to disable power saving states in order to reach your OC? You are setting your clocks manually and not using the easy oc feature right?


All power saving features are disabled. Clocks are set manually as well as voltages. C3/C6 states are enabled due to manual voltage set. As far as I'm aware they should only be disabled in offset mode, something about BSOD 124 junk.

I can get you some pictures of the bios. Maybe you'll see it in my pictures I take and then we can talk about how blind I am for missing it.
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post #4 of 31
Thread Starter 
Ok here's my bios settings.

Main page:

450


RAM timings (This is considered LOOSE for the RAM I am using since it's only at 1666MHz)

450


Voltages:


450


CPU voltage showing no offset mode..


450


CPU Config Page:

450


CPU Power Management:

450
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post #5 of 31

I have the same board and cpu, I am stable at 4.625 @ 1.336 fixed core voltage. I can boot to 4.7 but get a BSOD pretty quickly running Prime95. I noticed you have no-execute memory protection disabled, any reason for that. I also have all the c-states disabled, I'll have to try enabling c3 and c6. I am always searching for why are any settings enabled or disabled. Also I do have the optiion to set core voltage to offset but I have it on fixed.

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post #6 of 31
Up the pll voltage just a tad

Right at 5ghz is when i needed Pll voltage on my 2500k, or it wouldn't even get past the post screen.
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post #7 of 31
Thread Starter 
Quote:
Originally Posted by jthomas View Post

I have the same board and cpu, I am stable at 4.625 @ 1.336 fixed core voltage. I can boot to 4.7 but get a BSOD pretty quickly running Prime95. I noticed you have no-execute memory protection disabled, any reason for that. I also have all the c-states disabled, I'll have to try enabling c3 and c6. I am always searching for why are any settings enabled or disabled. Also I do have the optiion to set core voltage to offset but I have it on fixed.

I'm not sure why I have no-execute memory protection disabled. I read the side panel info for it and it just said something about older OS's so I disabled it. I know if you are using a SATA III SSD disabling C3/C6 states will improve write performance, for some reason while they are enabled it slows writes down. I also heard you are supposed to have them enabled if running fixed voltage and disabled while running offset or you could end up with BSOD 124's.

For your CPU core voltage do you also have an auto? or do you just have fixed/offset? That's so weird.. what is your bios version? Also have you seen anything about a PLL over-voltage? or something similar perhaps?
Quote:
Originally Posted by finalturismo View Post

Up the pll voltage just a tad
Right at 5ghz is when i needed Pll voltage on my 2500k, or it wouldn't even get past the post screen.

I've tried 1.811 PLL with the same results, but I will try again next time I go to the bios.
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post #8 of 31
Quote:
Originally Posted by iinversion View Post


I'm not sure why I have no-execute memory protection disabled. I read the side panel info for it and it just said something about older OS's so I disabled it. I know if you are using a SATA III SSD disabling C3/C6 states will improve write performance, for some reason while they are enabled it slows writes down. I also heard you are supposed to have them enabled if running fixed voltage and disabled while running offset or you could end up with BSOD 124's.
For your CPU core voltage do you also have an auto? or do you just have fixed/offset? That's so weird.. what is your bios version? Also have you seen anything about a PLL over-voltage? or something similar perhaps?
I've tried 1.811 PLL with the same results, but I will try again next time I go to the bios.

I have had the c3 ,c6 states set to enable, disable and auto and have not seen much difference. I'll try enabling them and see if it affects my sata III ssd. Yea I have auto, offset and manual for core voltage.  I have the 1.20 bios version. I have not seen a PLL over-voltage onlyCPU Pll voltage which I have never changed.

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post #9 of 31
Thread Starter 
Well I figured out why it wasn't showing an offset mode. If the BCLK isn't set to the 100 strap then you can't use offset. Still no luck getting it to run past 4.75GHz.. oh well I'll just suck it up and settle with this lol.
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post #10 of 31
Quote:
Originally Posted by iinversion View Post

Well I figured out why it wasn't showing an offset mode. If the BCLK isn't set to the 100 strap then you can't use offset. Still no luck getting it to run past 4.75GHz.. oh well I'll just suck it up and settle with this lol.

 

I was aware I could'nt use offset with the strap at 125, just strange I still have the option. I guess I will settle for 4.625, with a 38 multi I can boot into windows but I get almost an imediate freeze. Probably need more vcore voltage but my Intel water cooler won't keep the temps tollerable.

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