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Haswell Overclocking Guide [With Statistics] - Page 1078

post #10771 of 19602
Hi guys, I've recently got my haswell 4670k to 4.4 ghz @ 1.325 core voltage
1.9 input voltage
140% power load
X40 uncore
Corsair h55 @ 70°c under prime95 load
Gryphon z87
Vengeance pro @ 2400mhz

I know some people managed great results with de-lidding their cpu.
Will this allow me to lower voltage? Or will it lower temps at same voltage?
Cheers

Sent from my SM-N9005 using Tapatalk
post #10772 of 19602
Update for you DarkWiz

chip from previous post.... 3333C costa rica

4.9ghz 1.46v load 1.475v adaptive Note: possibly could require more voltage will prly end up around 1.5v 24/7 stable

uncore 43x 1.21vv

Input V - initial 2.0v eventual 2.0v

System agent v + 0.300 something like 1.25v should be safe

IO + 0.150v

Extreme phase 140% cuurent value

ram 2400 MHz 1.655v

load temp during GW2 max 67c on cooler master glacer 240l - -

CLU

also to Note: I attempted to get 5ghz some what stable without any luck up to 1.55-1.57v and 2.1-.2.2 input voltage...she would still bsod/freeze pissed me off lol


Edited by FractinJex - 3/6/14 at 6:55am
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post #10773 of 19602
Quote:
Originally Posted by Caos View Post

I went up to x43, with 95 prime test of 27.9. custom with fft size 1344-1344 and 80% of memory Ram
1 hour and 40 minutes.
this is the result: 1.232 vcore

the VID right?

VID is not vcore. Not sure what sensor for you to use, probably the vcore nearer the bottom there
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post #10774 of 19602


there is the vcore in red
Vcore: 1.232

VID if the image is not much

VID: 1.215
post #10775 of 19602
Quote:
Originally Posted by DjentArcher View Post

Hi guys, I've recently got my haswell 4670k to 4.4 ghz @ 1.325 core voltage
1.9 input voltage
140% power load
X40 uncore
Corsair h55 @ 70°c under prime95 load
Gryphon z87
Vengeance pro @ 2400mhz

I know some people managed great results with de-lidding their cpu.
Will this allow me to lower voltage? Or will it lower temps at same voltage?
Cheers

Sent from my SM-N9005 using Tapatalk

De-lidding is mainly to lower temps. So for people reaching the thermal limits, this allows a higher over clock. The two block method is my favorite. It is basically the same as the vise method except safer.

Here's a great thread showing how to de-lid with two wood blocks.
http://www.overclock.net/t/1415190/guide-i7-3770k-4770k-gets-lapped-delidded

You can skip the lapping part and go to the part where he shows the de-lidding process.

Good luck!

Welcome to OCN!
post #10776 of 19602
Quote:
Originally Posted by Barefooter View Post

De-lidding is mainly to lower temps. So for people reaching the thermal limits, this allows a higher over clock. The two block method is my favorite. It is basically the same as the vise method except safer.

Here's a great thread showing how to de-lid with two wood blocks.
http://www.overclock.net/t/1415190/guide-i7-3770k-4770k-gets-lapped-delidded

You can skip the lapping part and go to the part where he shows the de-lidding process.

Good luck!

Welcome to OCN!

I'd like to add - h55 would probably be a little overwhelmed regardless, you can help out a lot with a second fan mounted in push/pull
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post #10777 of 19602
Is there any particular reason my 4.2 is stable using the auto multiplier? It's 1.168 Core Voltage in CPU-Z, and it seems more stable than having even 1.23 and 1.24 with same frequency, but done manually. Am I missing something here? I figured having a voltage well over what is required would be fine, but it looks like it's even more unstable.

Anyone else ever run into the same phenomena? Then again, I may be doing something wrong.

I'm on a Maximus VI Gene, 4770K. Manual Mode.

Clock - 42
Manual Voltage 1.24
Prime 95 Blend - Crash after a few minutes.

Reset To Optimized Defaults
Change Core Clock to 4.2
CPU-Z Core Voltage - 1.168
Prime 95 Blend - Still Going (45 Minutes)

I can't wrap my head around it.
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post #10778 of 19602
Quote:
Originally Posted by saelz8 View Post

Is there any particular reason my 4.2 is stable using the auto multiplier? It's 1.168 Core Voltage in CPU-Z, and it seems more stable than having even 1.23 and 1.24 with same frequency, but done manually. Am I missing something here? I figured having a voltage well over what is required would be fine, but it looks like it's even more unstable.

Anyone else ever run into the same phenomena? Then again, I may be doing something wrong.

I'm on a Maximus VI Gene, 4770K. Manual Mode.

Clock - 42
Manual Voltage 1.24
Prime 95 Blend - Crash after a few minutes.

Reset To Optimized Defaults
Change Core Clock to 4.2
CPU-Z Core Voltage - 1.168
Prime 95 Blend - Still Going (45 Minutes)

I can't wrap my head around it.

It's harder to be stable with higher vcore, you need increased VRIN etc (and vrin llc) (also called VCCIN)

Also, you need to make sure you have a vcore sensor, and not a VID sensor. cpu-z version 1.64.0 works for a lot of people and versions after that have been broken for a lot of people. It might be throwing way more volts at load without you knowing.
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post #10779 of 19602
Quote:
Originally Posted by saelz8 View Post

Is there any particular reason my 4.2 is stable using the auto multiplier? It's 1.168 Core Voltage in CPU-Z, and it seems more stable than having even 1.23 and 1.24 with same frequency, but done manually. Am I missing something here? I figured having a voltage well over what is required would be fine, but it looks like it's even more unstable.

Anyone else ever run into the same phenomena? Then again, I may be doing something wrong.

I'm on a Maximus VI Gene, 4770K. Manual Mode.

Clock - 42
Manual Voltage 1.24
Prime 95 Blend - Crash after a few minutes.

Reset To Optimized Defaults
Change Core Clock to 4.2
CPU-Z Core Voltage - 1.168
Prime 95 Blend - Still Going (45 Minutes)

I can't wrap my head around it.

Here's a shot in the dark. Sometimes CPU-Z shows VID rather than Vcore (depending on the mobo, though you have Asus, which tends to show Vcore). Anyway, if the 1.168v is VID, and you're using adaptive voltage, then under Prime it's probably spiking to something like 1.268v. Check out your Vcore with HWInfo.

With Manual voltage the Vcore under load will overshoot VID by .02v - .03v ish. With Adaptive, it will overshoot (under AVX instructions) by as much as .1v.
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post #10780 of 19602
Quote:
Originally Posted by Cyro999 View Post

Also, you need to make sure you have a vcore sensor, and not a VID sensor. cpu-z version 1.64.0 works for a lot of people and versions after that have been broken for a lot of people.

Yes, but make sure the reading is correct, on mine (asrock) it reads 0.920V under prime while vid is actually 1.260V. If the reading is wrong like mine, don't go upping the 'core voltage' under the idea that you have lots of headroom.
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