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I7 2600K and Z77 Pro 4 Overclock - Page 2

post #11 of 42
Quote:
Originally Posted by sakrosankt View Post

Vcore goes up to 1,33V @ 4,2GHZ with your settings ^^ .... Seems to be the wrong direction.

Whats your idle vcore in CPU-Z with the -0.005 offset +0.004 Turbo?

Spread Spectrum = Disabled
Increase your power limits (Max is 500, I have mine at 300)
Set LLC to Level 2 or 3
C1E= Enabled
C3=Disabled
C6=Disabled
C-State Support = Disabled
Edited by Lucky 23 - 3/2/14 at 8:14am
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post #12 of 42
Thread Starter 
Idle Vcore is 0,952 V. I think I'll buy a pretested CPU next time ^^
post #13 of 42
Ok your idle is fine. What Multiplier are you stabilize?
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post #14 of 42
Quote:
Originally Posted by Lucky 23 View Post


Whats your idle vcore in CPU-Z with the -0.005 offset +0.004 Turbo?
Spread Spectrum = Disabled
Increase your power limits (Max is 500, I have mine at 300)
Set LLC to Level 2 or 3
C1E= Enabled
C3=Disabled
C6=Disabled
C-State Support = Disabled

 

The Power Limits can be on Auto for an overclock this small.

 

He only has 0%, 50%, and 100% LLC.

 

C3 and C6 and C-State Support can be left enabled with no problems if the LLC is at 25-50%. I know from experience.

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post #15 of 42
These are the settings based on the ASrock guide which im constantly helping in
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post #16 of 42
Thread Starter 
Multiplier is 42 ... Seems to work with 1,26 V although the cpu steps back to 3,4GHZ every few seconds and I don't know why. I disabled C3/C6 and C-state.
post #17 of 42
Thread Starter 
post #18 of 42
Quote:
Originally Posted by sakrosankt View Post

Multiplier is 42 ... Seems to work with 1,26 V although the cpu steps back to 3,4GHZ every few seconds and I don't know why. I disabled C3/C6 and C-state.

The multiplier drops to 34 when stressing the CPU on Prime95?

Do you want to stick with 4.2 or are you trying to achieve a higher OC?
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Ubuntu 12.04 ASUS 24" Cooler Master Quickfire TK  Cooler Master V1000 
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Ubuntu 12.04 ASUS 24" Cooler Master Quickfire TK  Cooler Master V1000 
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post #19 of 42
Quote:
Originally Posted by Lucky 23 View Post

These are the settings based on the ASrock guide which im constantly helping in

 

That doesn't mean that they are the best settings. Again, C3 and C6 and c-state support can be fully enabled when using an Offset voltage as long as the LLC isn't set too high. How do I know? That's easy: I have these enabled with my LLC set to 25% and it's perfectly rock-solid stable when idling and under very light loads. I also get the added benefit of a lower idle power consumption by about 15W.

 

So, yes, I'm saying that the ASRock guide is wrong. Don't be surprised though: it's extremely common for people to recommend disabling C3 and C6 when using an offset because they don't know any better. Do you think that I would be spending my time saying all of this if I were just blowing smoke? I know what I'm talking about here.

 

@sakrosankt: enable C3, C6 and C-State Support and use the 50% LLC setting. Let's prove to Lucky 23 that I'm right.

 

Oh, and regarding the Power Limits: again, it's the same thing with the C3 and C6 thing: most people just don't have a clue. These can be on Auto for an overclock this small - even for 4.5 through 4.7 GHz. Beginning at about 4.8 GHz, you might need to begin tweaking them, but even then you might not have to until about 4.9 GHz. How do I know? Well, a part of it is from my own experience and the other part is just from being here on OCN every day.


Edited by TwoCables - 3/3/14 at 9:36pm
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It's a computer!
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CPUMotherboardGraphicsRAM
i5-2500K @ 4.5GHz (1.368-1.384V fixed voltage) ASUS P8P67 EVO B3 (UEFI ver. 1850) GTX 780 ASUS DirectCU II (1228 / 6300, 1.180V) G.SKILL Ripjaws X 8GB (2 x 4GB) 1866MHz, CL9 
Hard DriveHard DriveHard DriveOptical Drive
250 GB Samsung 840 EVO (C:\) 250 GB Samsung 840 EVO (D:\) 150 GB WD VelociRaptor Samsung SH-S243N 24x DVD Burner 
Optical DriveCoolingOSMonitor
Samsung SH-S203N 20X DVD Burner Thermaltake Frio Win 7 Home Premium x64 SP1 Retail AOC G2460PG (24" 1920 x 1080 144Hz G-SYNC) 
KeyboardPowerCaseMouse
Filco Majestouch 104-key Cherry MX Blues w/NKRO Corsair HX650 (Bronze, ordered on 12-12-2009) CM 690 Intellimouse Optical (1.1A) 1000Hz polling rate 
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post #20 of 42
Thread Starter 
Quote:
Originally Posted by Lucky 23 View Post

The multiplier drops to 34 when stressing the CPU on Prime95?

Drops when stressing with prime or linx ...
Quote:
Do you want to stick with 4.2 or are you trying to achieve a higher OC?

I want to stick with 42.

Quote:
enable C3, C6 and C-State Support and use the 50% LLC setting. Let's prove to Lucky 23 that I'm right.

If I'm not able to solve the VRM heat issue no need for that. Even @3,8GHZ (all cores) the CPU steps back to 3,4GHZ after a few minutes.
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