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Haswell Overclocking Guide [With Statistics] - Page 1259

post #12581 of 19539
Quote:
Originally Posted by guy151 View Post

Well it wasn't even crashing before

You didn't mentionned that, if you were stable with same settings testing with x264, then i'm not competent at all to give you advices, except raise vcore... VCCIN should be high enough (around 1.8 could be enough).
 
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post #12582 of 19539
Quote:
Originally Posted by ConnorMcLeod View Post

Not all psu are compatible with C-State, i've seen in forum that you just have to set C3 and it is fine, you already have a nice power saving with it, unless you want to change your psu.

Thing is, I have a Haswell ready PSU (seasonic G-650W).. Which makes it weird. The C6/C7/C7s seem to crash my computer when I run my CPU overclocked :/.
post #12583 of 19539
This is how it looks like by me Asus Z87-delux @ C-states - Auto (off apparently)

balanced (cpu min 5%) vs high performance plan (cpu min 100%) @ 4.6ghz 1.234v




I had some issues with all c-states - on too, in cpu intense game benchmarks it wouldn't switch to c0 properly and could cause system hang/freeze & reset/app crash >> RE5 - fixed benchmark jobthread=8
low load + high load and 0.02v to 1.23v kinda happened to quick or something, lower oc below 1.20v didnt have such problems, guess cause its smaller voltage variation.

later bios releases fixed that, but lately ie 1802 doesnt turn them on anymore, for example by windows boot @ balanced power plan it stays in c3/c7 for ~ 15-30sec then it suspends off until next reboot.
v1707 c-states-all on didnt do that and it stayed in C3 most of the time @ balanced, @ high performance it switched C0 right away .
Ah well, hopefully they release another bios in the future.


EDIT:
false alarm it was Intel RST dynamic storage accelerator conflicting with c-states and "turning them off", I've manually enabled high performance gear, didnt thought it would affect cpu c-states this way..

All is good with 1802.
Edited by TheHunter - 5/17/14 at 3:51pm
post #12584 of 19539
Quote:
Originally Posted by Vixo90 View Post

Update:

*Yesterday: I tried upping input voltage to 2.05 and vcore from 1.315>1.350 but no different in stability.

*Today: Went back to 1.9 input voltage, started at 1.300 up to 1.350, no difference in stability.

*Decided to go above my comfortable-zone (above 1.350):
Set 1.355v and bam - 45 minutes in x264 without any issues. Stopped it after. I havent run any more tests (will do overnight run later).
(crashed like 2-3 mins in before, record was 6-8 mins stable (with 1.350v) then BSOD 101)
Update#2:

Crashed at 1.355 again. Went from 1.355> 1.385 with no increases in stability. Im using x264 8 threads test (@4.6 GHz, 4670k my CPU) and I keep crashing less than 10 minutes in.
No increase in stability from 1.300>1.385 (except the 40 min run on 1.355, guess I just had luck or something) even with change in input voltage (tried ranges from 1.9 to 2.1)

I decided to back down to 4.5 GHz cus x46 will require 1.4+ v and my temps were already high.

Started at 1.200v @ x45 and I seem to be stable at 1.250. With that voltage I have no temp issues at all...

So: how do I get like 45.5 GHz? I put x46 on 2 cores and x45 on the 2 remaining? Does it matter which ones?

Or do I use the BCLK thingy?

My temps are fine up to 1.350v really, even when its hot in my apartment. So I would like to be around that voltage with highest frequency possible (bit lower than 4.6 GHz)

EDIT: If I change my BCLK frequency from 100.0, to 102.1, I get 4590 MHz. But it increases my cache ratio and RAM also, is that a problem? I can lower them. Does it raise anything else that can be detrimental? It really sucks that im stable at x45 with 1.250v but need 1.4v+ for 46. I want something in between.
Edited by Vixo90 - 5/16/14 at 6:06pm
post #12585 of 19539
Quote:
Originally Posted by Wirerat View Post

when I starting Raising my uncore I had to bump vcore a little too to stabilize.

4.2 @ 1.19v is my settings on both my 4670k cache/uncore. Thats including a average and below average chip.

If you want to leave it at 34. I dnt think it makes any tangible difference.

Thank You Sir. I'll stay with an uncore of 34 smile.gif
post #12586 of 19539


I5-4670K
Core Ratio: 46x
Vid: 1.287v
Vcore: ???
Cache Ratio: 34x
Cache Voltage: 1.250v
VCCIN: 1.900v
Stability Test: Prime 95, 27.9 1344/1344
C-States enabled
EIST/turbo boost disabled
Auto/Adaptive disabled --> Manual enabled
Not delidded
2x8GB 1866 9-10-9-28 @1.500v –XMP Profile #1
Asrock Z87e-itx
H100i

I managed to get my core speed to show up on cpuz... version 1.69 though and not 1.64.
But now I'm trying to figure out what my Vcore is? Vcore does not show up on HWInfo or Cpuz 1.64?
Is it 1.288v off of Cpuz 1.69?
Man I miss my Asus z87 mobo frown.gif
post #12587 of 19539


I5-4670K
Batch: L317B820
Core Ratio: x45
Vcore: 1.260v (Override Mode)
Cache Ratio: x34
Cache Voltage: Auto
VCCIN: 1.900v
Stability Test: 3hrs on Aida64
Temps: 83 80 81 75 (Ambient Temp: 31C)
2x4GB 1600 9-9-9-24 @1.500v –XMP Profile #1
Asrock Z87 Extreme 4
Swiftech H320
post #12588 of 19539
Quote:
Originally Posted by phazer11 View Post

So... I have my chip running at 4.3GHz (1.25 VID in BIOS 1.28v under LLC) and it's been doing Prime 95 Blend, however, it looks like I'm going to mainly be limited by my thermals since even this seems to throttle a bit even though I'm using a full watercooling loop.

That's normal voltage rise under load, it's not related to LLC (haswell does not have a vcore LLC setting, only input voltage LLC)

Prime v28 is hot (:

If using prime, you can vcore check with fft 1344 on 27.9, but if you want to pass the hottest and hardest tests - being blend stable on 28.5 is very difficult and hot.
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post #12589 of 19539
Quote:
Originally Posted by bloodysummer View Post



I5-4670K
Batch: L317B820
Core Ratio: x45
Vcore: 1.260v (Override Mode)
Cache Ratio: x34
Cache Voltage: Auto
VCCIN: 1.900v
Stability Test: 3hrs on Aida64
Temps: 83 80 81 75 (Ambient Temp: 31C)
2x4GB 1600 9-9-9-24 @1.500v –XMP Profile #1
Asrock Z87 Extreme 4
Swiftech H320

That looks really ho -
Quote:
Ambient Temp: 31C
.. ahhh
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post #12590 of 19539
Cyro999; just made a funny discovery:

4.3 HT on = 185 ~ 190Gflops
4.3 HT off = 210Gflops steady!

Seems like the HyperThreading is having difficulties with the AVX2?
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