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Haswell Overclocking Guide [With Statistics] - Page 757

post #7561 of 19539
Quote:
Originally Posted by Calpern View Post

Looks like this is working. Vcore at 1.2v and uncore at 1.15v, boots and still running Prime95. Now what do I do if I want to go higher on the core multi? Just up it with 1 each time and feed it with more vcore if it crashes? Should I increase my ring ratio or is that useless and only necessary at higher clocks?

nvm

Yep, once x40 is stable move on up to x41. With regards to vccin, .025v increments should get you in the ballpark area, fine tune with .005v. Leave everything else as is till you're happy with the core, you've probably read this in the guide now though. wink.gif Good idea to make a note of what each multi needs for being stable with whatever bench/stress you're using as it'll give you a heads up on how far you might be able to take it and if it's worth it for the volts you'll need. (scaling).
post #7562 of 19539
Quote:
Originally Posted by NightHawk06 View Post

hey thank you not sure if this alright but manage to get 4.9ghz 1.380vcore and trying to lower it on offset but crashed so it pushes high of 1.43 or 2 Hwmonitor!
what cpu you running?

I was playing with a 4670k for that run, I also have a 4770k but that one is pretty average, 1.25V for 4.5ghz kinda chip, could not even do 5ghz at 1.5V, got to desktop & crashed opening superpi...

Playing with a 2600k again the other day & haswell walks all over it though. Benching XTU with 2600k at 5.5Ghz, I had to really tune the memory in to barely get ahead of the 4670k score at 4.7Ghz with very basic memory settings.
    
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post #7563 of 19539
Testing 49x, so far having positive results. Last I tried this started getting random "01a" bsod. Now I backed the uncore down and having better luck. Vcore is at 1.465, max core temp is 68 C right now lol.
post #7564 of 19539
Quote:
Originally Posted by Doug2507 View Post

Yep, once x40 is stable move on up to x41. With regards to vccin, .025v increments should get you in the ballpark area, fine tune with .005v. Leave everything else as is till you're happy with the core, you've probably read this in the guide now though. wink.gif Good idea to make a note of what each multi needs for being stable with whatever bench/stress you're using as it'll give you a heads up on how far you might be able to take it and if it's worth it for the volts you'll need. (scaling).

Have been trying out different multipliers now. Got x42 to work with 1.250v core and vccin on auto. At x43 it crashed even at 1.3v but worked at 1.3v with vccin at 1.9v. Isn't 1.3v pretty high for a 4.3ghz clock?
post #7565 of 19539
Quote:
Originally Posted by Calpern View Post

Have been trying out different multipliers now. Got x42 to work with 1.250v core and vccin on auto. At x43 it crashed even at 1.3v but worked at 1.3v with vccin at 1.9v. Isn't 1.3v pretty high for a 4.3ghz clock?

Yep, you'll find you need to raise vccin as you get higher on both vcore and core multi.

1.3v may be a little below average, the table on the 1st page will give you an idea of what the average is along with the plot chart. If x42 is stable at 1.25vcore and x43 at 1.3vcore then x44 will require over 1.35v. This is what i was on about with regards to scaling as it gives you an idea if it's worth pushing for x45 with regards to both voltage and temp.
post #7566 of 19539
Quote:
Originally Posted by TheHunter View Post

Why leave LLC at auto which makes LLC8 which means no SVID vdrop at all, also higher cpu temp, higher VRM temps and It will use the same 1.79v idle or by load overvolts a little...

I don't think you're reading my posts? Either way I'm happy for you to OC any way you want but let me ask you a question; is VCCIN value more important under idle or load? If you say under load which I'm going to assume you will, then your advise doesn't make any sense.
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post #7567 of 19539
Lols @ people wanting to see vdroop from loose LLC...

Vdroop is a relic from the past, necessary when our PSUs and Mobo's had poor voltage regulation under transients. It's not an issue to see voltage move slightly away from nominated values, as long as the movement isn't extreme (which with high LLC, doesn't occur)

IMO, the best choice is to have tight LLC so that voltage sits as close to your nominated value as possible. Having voltage move higher under load is fine as long as you understand it's going to happen and set your idle voltage lower, which won't be an stability issue since you're idling lol.
post #7568 of 19539
Thread Starter 
Quote:
Originally Posted by cmdrfluff View Post

Username: Cmdrfluff
CPU Model: 4670K
Core Multiplier: 45x
CPU VID: 1.275
Vcore: 1.296
Uncore Multiplier: 42x
Uncore Voltage: 1.125
Cooling Solution: Hyper 212+ W/ dual Scythe Ultra Kaze fans
Stability test: Prime95 (27.9) 8+ Hours (small FFTs & Blend)
Batch Number: 3313A645 (Costa Rica)
RAM Speed: 1866 @ 10-11-10-30-1T @1.500v (32Gb. G.Skill Ares)
Input Voltage: Auto (1.73x Boot, 1.808 Load)
Motherboard: Asus Hero, 1102 BIOS

Other info: 92C on Prime Small FFTs. Can get RAM to 2400 @ 11-13-13-31-1T @1.650v (run into boot cycle issues, but survives same stress tests). Need 1.325 CPU VID for 46x core/34x uncore (auto uncore voltage) with 1.9xx VCCIN, however temps go too high. Any tweaked voltages are in manual mode. All C-states are enabled. Digi+ settings are stock. Been running for just under a month on these settings without issues.

Great guide and information thumb.gif

Thanks, you'll be charted soon.

 

Quote:
Originally Posted by jameyscott View Post


Happy birthday quacker!

 

QUACK THANKS

Quote:
Originally Posted by soulbytes View Post

Share my new settings.

IBT make my temp reached 93c. I might change my thermal paste from mx-4 to liquid pro to get a better temp.



Settings :
4770K L316B828 Malaysia
CPU/Cache : 47/47
Vcore/Vcache : 1.296v/1.310v Bios (error reading on HWMonitor 1.342v)
CPU input voltage : 1.94v
SA : + 0.250
Others : Auto
Memory : Patriot Viper 3 Red 2x8gb 2133 11-11-11-30-2 1.5v @ 2600 12-13-13-27-1 1.65v
Cooling : Single loop 420 rad push/pull with EK WB Supremacy Nickel

Cheers

You will be updated.

 

Quote:
Originally Posted by FtW 420 View Post


I did run 20 loops of x264, have that in the screen with XTU & IBT as well here http://www.overclock.net/t/1411077/haswell-overclocking-thread-with-statistics/7350_50#post_21464517
Merry B-day!
Nice temps for that clock & voltage! I have some nice low voltage for the clock I'm at, but too hot to keep going higher...

THANKS 

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post #7569 of 19539
Thought I would post my 4.7ghz settings:

XMP Profile 1
Core Multiplier: 47x
Vcore control - Manual
CPU VID: 1.410
Uncore Multiplier: 40x
Uncore Voltage: 1.270
LLC: Level 7
Input Voltage: 2.10
Phase Control: Optimized
Current: 130%
System Agent Offset: +.05v
CPU Analog / Digital Offset: +.05v


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post #7570 of 19539
What effect does phase control and current have? Didn't bother tinkering with those settings
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