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Haswell Overclocking Guide [With Statistics] - Page 115

post #1141 of 19540
Quote:
Originally Posted by rickyman0319 View Post

If I already delidded my cpu and overclock my cpu , what is the best voltage for it?

Depends on your CPU and what you won on your CPU lottery. Your's might hit only 4GHz 1.3V or it could be pushed to 5GHz at 1.5Vs (extreme examples)

I'd say just stick with the guide in the first post and work from there.
post #1142 of 19540
I havr found to get the best overclock to vcore ratio keep the uncore 500mhz below your overclock for example...4.6ghz with a uncore of 4.1 or
4.7ghz with uncore of 4.2

a lot of chips past 4.5ghz to keep the uncore within 300mhz or less require a lot more uncore voltage than they think/should even use.

my latest 4770k will 4.9ghz all day at 1.43-1.45 with a 4.4 uncore but with a uncore of 4.6 forget about it lol not even close to stable.
Also ive noticed that a nice vrin/input voltage of 1.95 is a good voltage for that up to 2.0 is safe but no further imo.
And try and keep uncore voltage below 1.3v ive seen people running 1.35+ but we will see the outcome of that im sure itll last for years but still unsure lol

btw a 4770k @ 4.7ghz uncore 4.2ghz is equal to a 5.02ghz 3770k thumb.gif
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post #1143 of 19540
Quote:
Originally Posted by jameyscott View Post

Depends on your CPU and what you won on your CPU lottery. Your's might hit only 4GHz 1.3V or it could be pushed to 5GHz at 1.5Vs (extreme examples)

I'd say just stick with the guide in the first post and work from there.

I don't know if it is lottery, but I am trying costa rica cpu right now. 4.4ghz (1.3x vcore) with 3.9ghz(1.2x vcore) uncore

later I will try to lower my both vcore.
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post #1144 of 19540
Quote:
Originally Posted by rickyman0319 View Post

I don't know if it is lottery, but I am trying costa rica cpu right now. 4.4ghz (1.3x vcore) with 3.9ghz(1.2x vcore) uncore

later I will try to lower my both vcore.


That's basically what I did with mine. I started high, but not too high to make sure I could get a stable OC, and then work it down from there. I'll most likely stay at 4.4-5Ghz for a daily and then try to push further for shiz and giggles.
post #1145 of 19540
it seems 3.9ghz uncore with 1.2x vcore doesnot work at all. it tells me bsod 124. I think that is uncore vcore error not core vcore. maybe I am wrong.

what is the bsod code for core vcore and uncore vcore?
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post #1146 of 19540
Ok, got a noob question. I've been overclocking my haswell for a couple of weeks and got it stable at 45x but I still don't know how to check what BSOD code I get when it crashes. Where do you look? I am on Windows 8 x64 & Asus hero mobo.

I've grown bored with 45x and am thinking of going a bit higher but I expect a lot of BSODs from going forward smile.gif
post #1147 of 19540
Thread Starter 
Quote:
Originally Posted by Tobiman View Post


Chip: 4670k
Core speed: 4.5ghz
CPU VID: 1.9v
Vcore: 1.205 bios/1.212 cpuz with 0.005 offset
Vcache/uncore: 1.205 bios with 0.005 offset
Cooling solution: Custom loop but in need of tweaking for max performance.
8GB RAM @ 2133 (actual ram speed is 2400 so it's actually running slower atm)
Batch # is L313B427-Malaysia

Results charted. You didn't list uncore speed and your picture didn't show vcore reading, you need to scroll down a bit more.

Quote:
Originally Posted by Tobiman View Post


Chip: 4670k
Core speed: 4.5ghz
CPU VID: 1.9v
Vcore: 1.205 bios/1.212 cpuz with 0.005 offset
Vcache/uncore: 1.205 bios with 0.005 offset
Cooling solution: Custom loop but in need of tweaking for max performance.
8GB RAM @ 2133 (actual ram speed is 2400 so it's actually running slower atm)
Batch # is L313B427-Malaysia

Results charted. You didn't list uncore speed and your

Quote:
Originally Posted by rickyman0319 View Post

it seems 3.9ghz uncore with 1.2x vcore doesnot work at all. it tells me bsod 124. I think that is uncore vcore error not core vcore. maybe I am wrong.

what is the bsod code for core vcore and uncore vcore?

Like I've said, simply set uncore back to stock. If you still get 124, then something is up.

Quote:
Originally Posted by rickyman0319 View Post


I don't know if it is lottery, but I am trying costa rica cpu right now. 4.4ghz (1.3x vcore) with 3.9ghz(1.2x vcore) uncore

later I will try to lower my both vcore.

Ricky, did you read *any* guide on overclocking? There is no set voltage for a speed set in stone.

The best voltage is the lowest voltage required for the highest core multiplier you can tolerate, that means without degradation, heat death, crashing.
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post #1148 of 19540
Quote:
Originally Posted by tomxlr8 View Post

Ok, got a noob question. I've been overclocking my haswell for a couple of weeks and got it stable at 45x but I still don't know how to check what BSOD code I get when it crashes. Where do you look? I am on Windows 8 x64 & Asus hero mobo.

I've grown bored with 45x and am thinking of going a bit higher but I expect a lot of BSODs from going forward smile.gif
One of the set backs to win8

That's one of the set backs to win8 you can check whea but ive found that not reliable ton haswell at all..lol

and btw u wanna start a overclock imo low vcore and work up its much easier to guage a overclock going upwards than downwards trust me!
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post #1149 of 19540
how do u guys put thermal paste on the cpu? I think I did it wrong. I put the thermal paste on cpu as X format. is that okay or not?

I will try this way:

core - 44x
uncore - 35x
vcore - bios 1.285 (hdinfo - 1.312v)
uncore -1.2

everything is auto
Edited by rickyman0319 - 8/25/13 at 6:07pm
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post #1150 of 19540
Anyone have issues with i5-4670k having fixed multipliers? I just experienced this a few days after I finished my build.
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