Woah that is awesome, never knew such site existed.
Can't get i7 stable.
- Thread starter Kasc
- Start date
Woah that is awesome, never knew such site existed.
Right ok, I can get my CPU stable at these settings but with the CPU Vcore at 1.2V.
When I'm trying to get my CPU stable at 4Ghz I'm setting the BCLK Freq. at 200, the Vcore at 1.35V, and the QPI at 1.4V. However my computer always chrashes even before it gets to desktop. It chrashing in the first 'Loading Windows' screen.
When I'm trying to get my CPU stable at 4Ghz I'm setting the BCLK Freq. at 200, the Vcore at 1.35V, and the QPI at 1.4V. However my computer always chrashes even before it gets to desktop. It chrashing in the first 'Loading Windows' screen.
Kasc, you are supposed to edit that page to enter the values that you have your BIOS set to!
You just edit it the same way you would your real BIOS...
Anyway, looking at your screens, there are 2 things I can suggest that you try to get your system stable.
First, set Performance Enhance to 'Standard' instead of 'Turbo', this isn't the Turbo Boost Tech feature that enables the 21x multiplier, Performance Enhance is for your RAM timings, setting it to Turbo or Extreme (I think Extreme is the other setting) basically tightens up your advanced RAM timings, so with you having it set to Turbo it will be using more agressive RAM subtimings and could be causing instability.
If you select it, and then read what it says in the right hand column, it tells you to set it to standard when overclocking to maintain stability.
Second thing I suggest you do, is to enable Loadline Calibration, this helps a LOT when trying to stabilize your o/c, I need like 1.3215v Vcore to get my 191x21 o/c stable, but with LLC enabled I only need 1.27500v Vcore in the BIOS...
Give this a try and then see how you get on mate..
Good luck
::edit::
One last thing, try setting your RAM command rate to 2T instead of 1T, then try to get your o/c stable first, once you find stable o/c, then you can begin playing with RAM timings to try and tighten them up, it is best to leave your RAM set to stock settings to begin with and focus on your CPU o/c before doing anything with your RAM just so that you don't have to much stuff going on at once...
Hope this helps you out.
You just edit it the same way you would your real BIOS...
Anyway, looking at your screens, there are 2 things I can suggest that you try to get your system stable.
First, set Performance Enhance to 'Standard' instead of 'Turbo', this isn't the Turbo Boost Tech feature that enables the 21x multiplier, Performance Enhance is for your RAM timings, setting it to Turbo or Extreme (I think Extreme is the other setting) basically tightens up your advanced RAM timings, so with you having it set to Turbo it will be using more agressive RAM subtimings and could be causing instability.
If you select it, and then read what it says in the right hand column, it tells you to set it to standard when overclocking to maintain stability.
Second thing I suggest you do, is to enable Loadline Calibration, this helps a LOT when trying to stabilize your o/c, I need like 1.3215v Vcore to get my 191x21 o/c stable, but with LLC enabled I only need 1.27500v Vcore in the BIOS...
Give this a try and then see how you get on mate..
Good luck
::edit::
One last thing, try setting your RAM command rate to 2T instead of 1T, then try to get your o/c stable first, once you find stable o/c, then you can begin playing with RAM timings to try and tighten them up, it is best to leave your RAM set to stock settings to begin with and focus on your CPU o/c before doing anything with your RAM just so that you don't have to much stuff going on at once...
Hope this helps you out.
Kasc, you are supposed to edit that page to enter the values that you have your BIOS set to!
You just edit it the same way you would your real BIOS...
Anyway, looking at your screens, there are 2 things I can suggest that you try to get your system stable.
First, set Performance Enhance to 'Standard' instead of 'Turbo', this isn't the Turbo Boost Tech feature that enables the 21x multiplier, Performance Enhance is for your RAM timings, setting it to Turbo or Extreme (I think Extreme is the other setting) basically tightens up your advanced RAM timings, so with you having it set to Turbo it will be using more agressive RAM subtimings and could be causing instability.
If you select it, and then read what it says in the right hand column, it tells you to set it to standard when overclocking to maintain stability.
Second thing I suggest you do, is to enable Loadline Calibration, this helps a LOT when trying to stabilize your o/c, I need like 1.3215v Vcore to get my 191x21 o/c stable, but with LLC enabled I only need 1.27500v Vcore in the BIOS...
Give this a try and then see how you get on mate..
Good luck
::edit::
One last thing, try setting your RAM command rate to 2T instead of 1T, then try to get your o/c stable first, once you find stable o/c, then you can begin playing with RAM timings to try and tighten them up, it is best to leave your RAM set to stock settings to begin with and focus on your CPU o/c before doing anything with your RAM just so that you don't have to much stuff going on at once...
Hope this helps you out.
Hey. Thanks for the response.
I tried setting LLC on, Perfomance Enchance to standard and the Vcore to 1.35V for 200x20 and it wouldn't even finish the BIOS screen. I think I'm probably gonna have to accept that my i7 doesn't wanna go to 4Ghz
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Turn off HT - you don't need that- without it is much easier to OC.
I don't get these people running i7's without HT enabled.. why not just buy a core 2 quad instead of i7 if you don't use HT??
That's how I see it anyway.
@OP, I am fairly sure this chip you have is a lemon, and it won't do 4GHz.
Which Vcore and QPI voltages did you have set when you tried enabling LLC and turning Performance Enhance to Standard?
And did you try rasing IOH Core and QPI Pll up a couple of increments in the BIOS as well to see if that stabilizes it?
I don't understand why the system wouldn't POST when you enabled LLC and set performance enhance to standard, both of these settings should have a positive effect not the negative one you have described.
Are you manually adjusting your Uncore and QPI multipliers?
Have you also tried loosening up your RAM timings to 9-9-9-26-2T??
When I am clocking my chip, I set ALL of my RAM timings and advanced timings manually, the only RAM timing that I don't adjust is Round Trip Latency.. and at 4GHz my system is solid as a rock, I am currently in the process of getting it stable at 4.2GHz.
I would try setting QPI/Vtt to 1.395v, and Vcore to 1.300v, then loosening up RAM timings, enabling LLC, performance enhance to standard, QPI multi at 36x uncore @ 16x, mem multi at 8x, Bclk 191, and Turbo Boost tech enabled, then nudge IOH Core, QPI PLL, CPU Pll voltages up 2 increments, and then test again.
Can I ask, what kinda load temps are you hitting when the chip is loaded when you have been trying to get 4GHz?
If that doesn't work, you can try using 6x mem multi, and 13x uncore, this will underclock your RAM, so that you can figure out whether it is your chip or processor that is holding you back.
Which RAM are you using anyway, it is 1600MHz right?
I can't see anywhere that you have said which type of mem it is, though I have only skim read through the thread, so I have probably missed it.
::edit::
Oh, I forgot to say, before you do any of the above, first enter the BIOS, and then Load Optimized Defaults, hit F10 to save and exit, then re-enter the BIOS and make these changes.
Another thing you can try is setting the PCIe clock frequency to 102MHz, as this can help when overclocking your processor.
Also, which BIOS are you running for your mobo?
That's how I see it anyway.
@OP, I am fairly sure this chip you have is a lemon, and it won't do 4GHz.
Which Vcore and QPI voltages did you have set when you tried enabling LLC and turning Performance Enhance to Standard?
And did you try rasing IOH Core and QPI Pll up a couple of increments in the BIOS as well to see if that stabilizes it?
I don't understand why the system wouldn't POST when you enabled LLC and set performance enhance to standard, both of these settings should have a positive effect not the negative one you have described.
Are you manually adjusting your Uncore and QPI multipliers?
Have you also tried loosening up your RAM timings to 9-9-9-26-2T??
When I am clocking my chip, I set ALL of my RAM timings and advanced timings manually, the only RAM timing that I don't adjust is Round Trip Latency.. and at 4GHz my system is solid as a rock, I am currently in the process of getting it stable at 4.2GHz.
I would try setting QPI/Vtt to 1.395v, and Vcore to 1.300v, then loosening up RAM timings, enabling LLC, performance enhance to standard, QPI multi at 36x uncore @ 16x, mem multi at 8x, Bclk 191, and Turbo Boost tech enabled, then nudge IOH Core, QPI PLL, CPU Pll voltages up 2 increments, and then test again.
Can I ask, what kinda load temps are you hitting when the chip is loaded when you have been trying to get 4GHz?
If that doesn't work, you can try using 6x mem multi, and 13x uncore, this will underclock your RAM, so that you can figure out whether it is your chip or processor that is holding you back.
Which RAM are you using anyway, it is 1600MHz right?
I can't see anywhere that you have said which type of mem it is, though I have only skim read through the thread, so I have probably missed it.
::edit::
Oh, I forgot to say, before you do any of the above, first enter the BIOS, and then Load Optimized Defaults, hit F10 to save and exit, then re-enter the BIOS and make these changes.
Another thing you can try is setting the PCIe clock frequency to 102MHz, as this can help when overclocking your processor.
Also, which BIOS are you running for your mobo?
Last edited:
Im getting 65C load temperatures at 3.5Ghz. Can't find out at 4Ghz because it chrashes before windows is even finished loading.
I haven't tried loosening the timings yet but I will try that next.
My RAM is: http://www.overclockers.co.uk/showproduct.php?prodid=MY-129-OC&groupid=701&catid=8&subcat=1389
My problem however is that I get a little bit scared when it chrashes and don't like to tinker around so more But aslong as I'm not overvolting anything I should be ok, right?
I haven't tried loosening the timings yet but I will try that next.
My RAM is: http://www.overclockers.co.uk/showproduct.php?prodid=MY-129-OC&groupid=701&catid=8&subcat=1389
My problem however is that I get a little bit scared when it chrashes and don't like to tinker around so more
But aslong as I'm not overvolting anything I should be ok, right? Yeah, as long as you aren't pushing to much Vcore and Uncore voltages you are going to be fine..
In the Intel spec sheets for i7 processors max Vcore is 1.55v, so you are well below that atm.
Out of curiousity, have you tested each of your DIMM's using the memtest boot disc?
If not I suggest you try this, incase it is bad RAM that is causing your instability.
Download the memtest iso, burn it to a disc, then set everything in the BIOS back to optimized defaults, and then setup your RAM to run at it's rated speed and timings, save and exit the BIOS, making sure you have the disc you burnt the memtest iso to in your optical drive, then press F12 to enter the boot menu when the Gigabyte splash screen is showing on the screen during POST, and then select your CD drive and then memtest will start up.
Leave this running for a good while, say 20 passes for good measure to see if it gives you any errors.
Test each stick of RAM individually instead of all 3 at the same time, this way you will be able to tell if you have a bad stick of RAM in your kit.
It is a lengthy process, but it is worth doing just to make sure it isn't your RAM that is causing instability, as some modules don't always run at their rated speed and can cause problems like what you are experiencing.
And like I said before, you could try using the 6x mem multi and 13x uncore multi when you are trying to get the 4GHz o/c stable, because if it is something to do with one or more of your modules not being able to run at 1600MHz then this should help you get it stable.
It can be a real PITA when you have problems like this, but you will get to the bottom of it eventually mate, just don't give up on it!!!
In the Intel spec sheets for i7 processors max Vcore is 1.55v, so you are well below that atm.
Out of curiousity, have you tested each of your DIMM's using the memtest boot disc?
If not I suggest you try this, incase it is bad RAM that is causing your instability.
Download the memtest iso, burn it to a disc, then set everything in the BIOS back to optimized defaults, and then setup your RAM to run at it's rated speed and timings, save and exit the BIOS, making sure you have the disc you burnt the memtest iso to in your optical drive, then press F12 to enter the boot menu when the Gigabyte splash screen is showing on the screen during POST, and then select your CD drive and then memtest will start up.
Leave this running for a good while, say 20 passes for good measure to see if it gives you any errors.
Test each stick of RAM individually instead of all 3 at the same time, this way you will be able to tell if you have a bad stick of RAM in your kit.
It is a lengthy process, but it is worth doing just to make sure it isn't your RAM that is causing instability, as some modules don't always run at their rated speed and can cause problems like what you are experiencing.
And like I said before, you could try using the 6x mem multi and 13x uncore multi when you are trying to get the 4GHz o/c stable, because if it is something to do with one or more of your modules not being able to run at 1600MHz then this should help you get it stable.
It can be a real PITA when you have problems like this, but you will get to the bottom of it eventually mate, just don't give up on it!!!