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The Gigabyte Z87/Haswell Overclocking(OC) Guide - Page 109

post #1081 of 3246
Hey guys. i just put together my new rig and im having a hell of a time oveclocking this thing. My specs are the following:

CPU: 4670K
MB: Gigabyte Z87-UD4H
RAM: G.Skills PC3 1600mhz F3-1600C9D-16GXM
GPU: GTX 670 SLi
CPU Cooler: Thermalright True 120 w/ Noctua Fans
OS: Windows 8
Case: CM 840 ATCS

So i've tried to follow the guides just to achieve a stable 4.2ghz overclock and no matter what i do i can't get rock solid. Steps i've taken:

1) Set Cpu Multi to 42x
2) Set voltage to 1.25V
3) RAM is at stock settings XMP profile 1
4) Disabled Turbo, C1E, C3/C6/C7, EIST
5)CPU VRIN Override LLC: Set to Extreme

I have made no other changes and here are my results:

1) Aida64 10 hours stable with max temps of 75C
2) Prime95 freezes after 2 hours max temps of 70 (hard freeze)
3) IBT after 5 passes max temps of 80 (restarts pc)

any help is much appreciated to get this rig stable

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post #1082 of 3246
@Spunky424

Have u tried to raise cache voltage?
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post #1083 of 3246
Quote:
Originally Posted by BrainSplatter View Post

@Spunky424

Have u tried to raise cache voltage?

im actually not sure which one is that? the vRING? thanks for the help...
post #1084 of 3246
Quote:
Originally Posted by Spunky424 View Post

Hey guys. i just put together my new rig and im having a hell of a time oveclocking this thing. My specs are the following:

CPU: 4670K
MB: Gigabyte Z87-UD4H
RAM: G.Skills PC3 1600mhz F3-1600C9D-16GXM
GPU: GTX 670 SLi
CPU Cooler: Thermalright True 120 w/ Noctua Fans
OS: Windows 8
Case: CM 840 ATCS

So i've tried to follow the guides just to achieve a stable 4.2ghz overclock and no matter what i do i can't get rock solid. Steps i've taken:

1) Set Cpu Multi to 42x
2) Set voltage to 1.25V
3) RAM is at stock settings XMP profile 1
4) Disabled Turbo, C1E, C3/C6/C7, EIST
5)CPU VRIN Override LLC: Set to Extreme

I have made no other changes and here are my results:

1) Aida64 10 hours stable with max temps of 75C
2) Prime95 freezes after 2 hours max temps of 70 (hard freeze)
3) IBT after 5 passes max temps of 80 (restarts pc)

any help is much appreciated to get this rig stable

Try setting the cache (uncore) speed to 36x. If it is still in Auto (or set to 35x) it will run at 39/40x when overclocked, which could be too high. You can also try increasing the Vring a little to 1.1 or 1.15V and see if that helps.

And you may as well turn Turbo, EIST, and the C-states back on, there's no real reason to disable them.
post #1085 of 3246
Quote:
Originally Posted by stasio View Post

Up to you.......rolleyes.gif


Ahh ok, i see, thanks Stasio.
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post #1086 of 3246
Quote:
Originally Posted by Forceman View Post

Try setting the cache (uncore) speed to 36x. If it is still in Auto (or set to 35x) it will run at 39/40x when overclocked, which could be too high. You can also try increasing the Vring a little to 1.1 or 1.15V and see if that helps.

And you may as well turn Turbo, EIST, and the C-states back on, there's no real reason to disable them.

i'll take your suggestions and implement them tonight when i get home. Should i just leave the turbo values to default or have them adjusted?
post #1087 of 3246
Quote:
Originally Posted by Spunky424 View Post

i'll take your suggestions and implement them tonight when i get home. Should i just leave the turbo values to default or have them adjusted?

If you are adjusting the multiplier using the Core Multiplier setting (or whatever the actual name is - the one on the main page) then just leave them at default. You can also adjust them individually, but that main control has the same effect.
post #1088 of 3246
Quote:
Originally Posted by stasio View Post

My 24/7 setting.....

4.65 GHz-DDR3-3100MHz CL12-15-14-35-1T@1.66V


I'm getting better read write and copy at x43 core 40 un-core 2133 C9 2t mem

 

What do you think explains this?

 

here's a bit more info for your benefit

 


Edited by owcraftsman - 8/22/13 at 3:15pm
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BenQ BL3200PT CAD Professional Monitor  Asus PB278Q (Extended) Corsair Gaming K70 LUX RGB Mechanical Gaming Ke... CORSAIR HX Series HX750 750W ATX12V 2.3 / EPS12... 
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post #1089 of 3246
I'm not sure if this has been answered, but I can't seem to have my CPU voltage down volt when the system is idle (GA-Z87X-UD4H). It has no problems down volting when I load the bio's default settings though.

According to the OP's post:

"if you enable C3 power state and EIST the CPU multiplier and voltage drop together even if you have set a manual voltage without offset. "

I have the C3 power state and EIST enabled in the UEFI. Help is appreciated!
post #1090 of 3246
Most of the time people use wrong CPUz Version for reading Vcore.
Try CPUZ 1,64 or Hwinfo.

Question: Is is worth to buy a Gigbyte Z87X UD4H instead of the Gigabyte Z87X UD3H ?
Is the UD4H better with higher overclocking ?
Edited by Alxx - 8/22/13 at 5:37pm
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