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Intel Haswell 4670k + 4770K Overclocking guide


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#1 ProKoN

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Posted 30 July 2013 - 06:28 PM

Thought I could shed some insight based off of my experience overclocking the Intel 4770K. I will add literature as I go.

I have based the guide off a simple 4.4GHz Overclock. Your results will Vary

 

Intel Haswell Overclocking Database. This Database is Authored and maintained by @Dark_Wizzie. A highly regarded member of Overclock.net. Thank You

 

https://docs.google....c1E&usp=sharing

 

 

 

Be sure to Submit your Highest Possible Cinebench Scores  here  This Database\Thread is Authored and maintained by @Jumper118. A highly regarded member of the LTT community  Thank You

 

http://linustechtips...s-now-included/

 

 

 

 

Once you have finalized your overclock and have a valid screenshot for 8hours or more of stress testing post your results here This Database\Thread is Authored and maintained by @MeltyMoon. A highly regarded member of the LTT community. Thank You

 

(protip - run cinebench r15 before you begin stress testing with any unnecessary applications closed)

 

http://linustechtips...cking-database/
 

 

 

 

Begin By updating your bios and downloading and installing the Intel Extreme Tuning Utility

http://www.intel.com...ng-utility.html


Guides will include

- System Overview

-Overclocking your cpu and finding stability

-finding ring bus stability at a 1:1 (or as close as possible)

- Getting the best performance out of your memory

-Enabling Haswell Power saving features.

System Overview

 

 

Part 1 : Overclocking your cpu, stress testing and finding stability


 

Part 2 : CPU Ring Bus Stability

 

 

Part 3 : Memory Stability

 

 

Part 4 : Enabling low power features

 

 

Any information I share is free, however if you would like to contribute to future projects \ guides or just show gratitude, Certainly not required..but. Thank You.

 

https://www.paypal.c...d=74B428H7FQU7W


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#2 ProKoN

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Posted 31 July 2013 - 09:07 PM

Finding Best CPU Frequency
  

   •Install the latest official bios

Clear cmos
Change cpu multiplier to 44
Change cpu vcore voltage to 1.25V
Change VCCIN voltage to 1.9V (processor input voltage PIV)
Set your ram @ 1333MHz/ Set memory Voltage to 1.5V
Boot and stress test with the IETU
 
 
Stability Testing
 
 
A Great way to judge stability and see how well your system is performing is to run cinebench and XTU Benchmark
 
 
If you can run 5-6 passes back to back your typically fairly stable.
 
 
 
The following Tests require you to set your Vcore mode to manual! Failing to do so will most certainly result in overvolting \overheating and throttling. These tests may aid you in reducing time spent stability testing
 
XTU-Benchmark (good suggestion is to run this a few times to gauge stability)
 
 
 
 
 

 

 

 

 

 

    Stress test for a minimum 8 hours
 

Increase voltage if the system crashes Decrease if stable
I don’t recommend more than 1.32V for 4.4GHz
You may need anywhere from 1.2, 1.21, 1.22, 1.23, 1.24, 1.25, 1.26, 1.27, 1.28, 1.29, 1.3, 1.31, 1.32V
Do NOT EXCEED 1.5V For any typical Overclock
Temps should Not Exceed 85c-90c Maximum
 
*Tip- If your having issues finding cpu stability at any cpu frequency Drop the ring ratio down to 3000MHz
 
Acceptable Cpu voltages
 

0V-1.3V For people concerned about volts\heat. up to 1.3V is playing it SAFE. be happy with your clocks at 1.3V. using an air cooler. I have found that up to 1.3V will offer the best performance ratio in terms of GHz\Watt

 

1.3V-1.44V Still safe without risking CPU degradation . Requires a good cooling solution ( top notch AIO cooler) NOT recommended for people using air cooling or people concerned with heat or volts applied

 

1.45V and Higher. For extreme Overclockers only. from my testing going over 1.45V to achieve higher clock speeds is pointless. the performance\Watt drops heavily and massive amounts of heat is generated.Not Recommended

 
 
 
 
 
 
Pushing Past 4.4GHz
 
My best Stable results so far

4.6GHz @ 1.35V
4500MHz ring bus @ 1.32V
VCCIN 1.9V
 
 
4.7GHz @ 1.41V
4600MHz ring bus @ 1.41V
VCCIN 2.0V
 
 
 
CPU Ring Bus Stability

 

Our goal is to Increase the CPU ring bus to a 1:1 ratio example
4.4GHz CPU frequency
4.4GHz ( I prefer to refer to the ring bus in MHz so 4400MHz)
Not all Cpu’s can achieve a 1:1 Ratio while overclocking
Finding Ring Bus stability is Time Consuming
 

Set your ring bus multiplier for a 1:1 ratio. We set it to 44 (4400MHz) to maintain a 1:1 Ratio with our 4.4GHz overclock
Set your VCCIN to 1.9V
Set your cpu ring voltage to whatever cpu vcore voltage you found stability with
Example if you found stable cpu results @ 4.4GHz -1.28V
Set your cpu ring voltage for 1.28V
 

 

Boot and stress test
You need a minimum of 8 hours stable before we can proceed
If you are stable great!
Begin reducing your VCCIN voltages until you become unstable, use the vccin voltage at the last stable setting. Default vccin is 1.75-1.78V on most boards.
Begin reducing your cpu ring bus voltages until you become unstable, use the voltage at the last stable setting.
 

If you have not found stability
 
Begin Increasing your VCCIN Voltage in .001 increments
1.9. 1.901, 1.902, 1.903, 1.904, 1.905, 1.906, 1.907, 1.908, 1.909, 2.0,  2.01,  2.02, 2.03, etc
In the real world 2.1V is maximum
Do not exceed 2.1V-2.2V

If unsuccessful set your vccin voltage for 2.0V and begin to reduce the ring bus ratio until your stable       43,42,41

 

Example

 

4.4GHz Cpu frequency

4200MHz ring bus

 
 
 
 
After you find the best possible ring bus frequency stable for 8 hours begin to reduce the voltages
Begin reducing your VCCIN voltages until you become unstable, use the vccin voltage at the last stable setting. Default vccin is 1.75-1.78V on most boards.
Begin reducing your cpu ring bus voltages until you become unstable, use the voltage at the last stable setting.
 
 
 
Maximum Recommended CPU Ring Bus Voltage - 1.4V
 
I have gone as high as 1.45V on the cpu ring bus voltage without any issues

 

 

 

 

 

 

 
My Best Validated Ring bus Results

 

4.4GHz @ 1.23V   CPU
4400MHz @ 1.22V Cpu Ring Bus
VCCIN 1.9V
 
4.6GHz @ 1.35V   CPU
4500MHz @ 1.3V Cpu Ring Bus
VCCIN 1.9V
 

 

4.7GHz @ 1.41V
4600MHz ring bus @ 1.41V
VCCIN 2.0V
 

 

 

Finding Memory Stability

 

Cpu Frequency is king. Obtain best CPU clocks first. Sacrifice Memory speed if you have to, not CPU speed
 
XMP Profiles can be MISLEADING
 
Little to no real world benefit from memory overclocking.
 
In my opinion Tighter Timings are more beneficial than Higher Frequencies because lower frequencies typically require less voltage

 

Xmp profiles change memory speed, timings, voltages
 
Most Memory Manufactures will only officially support the Jdec standard NOT XMP profiles.
 
XMP profiles are technically considered overclocking

 

 

Set your memory frequency to “auto”
Set your memory Dram timing configuration to “auto”
Set your memory Dram Voltage to “auto”
Load desired XMP Profile
Boot and stress test with the IETU memory stress test. ( your temps may be slightly higher than the regular cpu stress test, that’s ok)
 
 
The IETU is not the best memory stress tester since it will only utilize around 3-4 GB of memory. It is still effective, however if you choose to stress test your memory with another preferred stress testing program be sure to set your  cpu Vcore mode to “manual”

 

 

 

Increase memory voltage manually
Typically DDR3- 1600MHz requires 1.5V
Typically DDR3- 1866MHz requires 1.65V
Acceptable Voltage range for DDR3 is 1.3V-1.8V
 
Maximum voltages for different kits. My suggestions are

If your kit calls for    -1.35V do not exceed 1.6V

                                    -1.50V do not exceed 1.7V

                                     -1.65V do not exceed 1.8V

 

Increase voltage in .1V increments until stable for a minimum of 8 hours.  Eg-1.35V, 1.45V, 1.55V, 1.65V, 1.75V, 1.8V
 
If stable drop the Dram voltage down .05V and check to see if it is stable for 8 hours.
 
So what this means. If your ddr3 kit has a xmp profile of lets say 1600MHz @ 1.35V it may require as much as 1.5-1.6V to be stable. This is normal.
 
My Kingston HyperX Beast 2x8GB DDR3-2400MHZ kit required 1.71V in order to be stable with the xmp 2400MHz profile loaded, the  stock xmp profile suggested 1.65V
 
 
 
If no luck at stock timings and frequencies after trying Voltages from 1.5V-1.8V
Manually input stock frequencies and timings and voltage
 
Example- 1600MHz 9-9-9-24 1T 1.5V
 
Begin increasing voltage again
 
Try to scale back your memory frequencies
 
Example- drop your memory down from 2133MHz to 1866MHz.
 
Contact your memory technical support and load the values they suggest before considering your units defective

 

 

 

 

           

Haswell Low Power Modes

 

 

 

 

    Make sure you are on the latest official Bios!

 
 
Cpu ratio mode- Dynamic
 
 
Enhanced Turbo- Enabled
 
 
CPU core voltage mode- Adaptive
 
 
CPU ring voltage mode- Adaptive
 
 
Intel C-state – Enabled
 
 
C1E Support- Enabled
 
 
Package C-state limit - Auto

 

 

 

 

for windows users also make sure you set your minimum processor state to 5%

 

 

Windows7

 

->Control Panel\All Control Panel Items\Power Options\Edit Plan Settings

 

-->Change Advanced Power settings

 

--->Processor Power Management

 

---->Minimmum Processor state

 

-on battery 5%

 

-plugged in 5%

 

 

 

If your not having any luck with my guide, an alternative guide can be found here.

 

http://www.overclock...with-statistics

 

 

 

 


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#3 ProKoN

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Posted 31 July 2013 - 09:55 PM

A summary of my Overclocking journey

Before The Delid

2p0n.png

2tv.png

After The Delid


Finally stable at 4.7GHz (had to delid to achieve this on air) stable for 12 hours.

[email protected] max temp 89c average temp 78c

]oq1.png[/URL]

I finally found stability with the cache ratio. I am very Happy with this overclock.

I am stable for 10 hours at 4.7GHz with a 4500MHz ring bus frequency.

1.41V max temp 84c

PIV- 1.9V

CPU cache voltage- 1.3V

I dropped my memory down to 1333 for cpu stability testing. currently working on bringing the memory frequencies back up.

t0v6.png

tvu.png


12 hours stable at 4.7GHz with mem chips at 2600MHz (relaxed timings)

6icn.png

very close to achieving stabilitity at 4.6GHz with a 4600MHz ring bus 1:1 ratio

ran for 9 hours, then crashed....very very close.

apsy.png

4770k

4.7GHz @ 1.41v

4500MHz ring bus

2400MHz Memory

Stable\Validated overclock

8lry.png

 

 


4.8GHz @ 1.48V

4500MHz ring bus

2400MHz Memory

overclock is NOT STABLE Nor is it Validated but good fun none the less! My highest scores yet

 

yqj.png

 

 

4670K no delid (yet)

 

1st stable run at 4.8GHz, 22 hours. Working on lowering voltages and then pushing for a stable 4.9GHz

 

01ja.png

 

Final 4670k 24\7 Overclock results 4.8GHz ( not AVX stable)

 

Bclk-100

Cpu multi-48

Cpu ring multi-45

PIV- 2.07V

CPU Vcore- 1.34V

CPU ring bus voltage-1.4V

Memory- 2400MHz cl 11  @ 1.71V

 

nerv.png

 


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#4 WildTurtle

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Posted 01 August 2013 - 10:28 PM

4.8Ghz @ 0.976V? What kind of black magic is this.


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Build Logs - Black Ti


#5 ProKoN

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Posted 01 August 2013 - 10:33 PM

4.8Ghz @ 0.976V? What kind of black magic is this.

Please disregard any voltage you see from CPUz

 

Glitch in the program, sorry

 

The IETU shows accurate Voltage's

 

4.8GHz i need 1.48V :(

 

and still No real stability found, only with the ring bus set at 800 mhz i was able to stress test overnight at 4.8GHz @ 1.48V :(

 

Thanks for pointing that out, i made an edit to ensure the best possible accuracy.


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#6 iswedishleafs

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Posted 05 August 2013 - 08:38 PM

very informative

 

will try this sometime


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#7 acwilson96

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Posted 06 August 2013 - 07:00 AM

 

Finding Best CPU Frequency
  

   •Install the latest official bios

Clear cmos
Change cpu multiplier to 44
Change cpu vcore voltage to 1.25V
Change VCCIN voltage to 1.9V (processor input voltage PIV)
Set your ram @ 1333MHz/ Set memory Voltage to 1.5V
Boot and stress test with the IETU
 
 

Just done this and windows 7 froze at login screen!


I5 4670k | 7870 Tahiti LE | 1600MHz 2x4GB

#8 ProKoN

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Posted 06 August 2013 - 07:04 AM

begin by increasing your vcore in .01 increments

 

if you hit 1.3V and no luck, drop your cpu RING multiplier down to 30, try again.

 

make sure you set your ram to 1333 @ 1.5V


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#9 ProKoN

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Posted 06 August 2013 - 07:05 AM

Just done this and windows 7 froze at login screen!

also take the time and watch the videos i posted, they are dry, grab a cold one, but I included little bits of useful info in there


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#10 AndréMelsom

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Posted 14 August 2013 - 01:40 AM

Didnt work for me, I'm just getting bluescreens every fifth minute or so.
1.27=instans bluscreen
1.28=1 minute inside Windows
1.29= 5 minutes in Windows

What should i do?
Can i increase to 1.3 or should i decrease to 4.3 GHz?

#11 Tonny

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Posted 14 August 2013 - 01:49 AM

Didnt work for me, I'm just getting bluescreens every fifth minute or so.
1.27=instans bluscreen
1.28=1 minute inside Windows
1.29= 5 minutes in Windows

What should i do?
Can i increase to 1.3 or should i decrease to 4.3 GHz?

incerease to 1.3


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#12 Cryptonite

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Posted 14 August 2013 - 02:14 AM

Didnt work for me, I'm just getting bluescreens every fifth minute or so.
1.27=instans bluscreen
1.28=1 minute inside Windows
1.29= 5 minutes in Windows

What should i do?
Can i increase to 1.3 or should i decrease to 4.3 GHz?

here is your answer.

 

begin by increasing your vcore in .01 increments

 

if you hit 1.3V and no luck, drop your cpu RING multiplier down to 30, try again.

 

make sure you set your ram to 1333 @ 1.5V


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CPU: i5 2500k @ 4.5 GHz atm; GPU: Asus GTX 680 DirectCU II; RAM: 16 GB DDR3 1600 mhz; Mobo: Biostar T Series Z68 k+; SSD: 64 GB Adata SP900 Storage: 3x Seagate 2TB drives; PSU: 700 Watt Huntkey; Peripherals:  29" 21:9 AOC Q2963PM; 23" Hisense TV 1080p; Sharkoon Squad Laser mouse; Genius Imperator I Gaming Keyboard; xbox wireless remote sensor; 5.1 Logitech x530 sound system 01000010 01101001 01101110 01100001 01110010 01111001 00100000 01100100 01101111 01100101 01110011 01101110 00100111 01110100 00100000 01101101 01100001 01101011 01100101 00100000 01111001 01101111 01110101 00100000 01110000 01110010 01101111 00101110

 

 

 


#13 ProKoN

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Posted 14 August 2013 - 02:26 AM

Didnt work for me, I'm just getting bluescreens every fifth minute or so.
1.27=instans bluscreen
1.28=1 minute inside Windows
1.29= 5 minutes in Windows

What should i do?
Can i increase to 1.3 or should i decrease to 4.3 GHz?

what are your temps at 1.29V?

 

if you have have thermal headroom ( your below 85-90c max)

 

do as Tonny suggested and begin increasing voltage. you have a good cooler. 1.3, 1.31, 1.32 etc

 

 

once you run out of thermal headroom and you reach max temps do as Cryptonite suggested and drop the ring bus down and ENSURE your mem chips are @ 1333MHz 1.5V!


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#14 ProKoN

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Posted 14 August 2013 - 02:37 AM

post a full screenshot with the ietu while stress testing so i know whats going on

 

see how i have the ietu configured to display voltages temps and all the proposed values, do the same.

 

t0v6.png


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#15 Cryptonite

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Posted 14 August 2013 - 03:12 AM

what are your temps at 1.29V?

 

if you have have thermal headroom ( your below 85-90c max)

 

do as Tonny suggested and begin increasing voltage. you have a good cooler. 1.3, 1.31, 1.32 etc

 

 

once you run out of thermal headroom and you reach max temps do as Cryptonite suggested and drop the ring bus down and ENSURE your mem chips are @ 1333MHz 1.5V!

I forgot to take his temperatures into account.


CPU: i5 2500k @ 4.5 GHz atm; GPU: Asus GTX 680 DirectCU II; RAM: 16 GB DDR3 1600 mhz; Mobo: Biostar T Series Z68 k+; SSD: 64 GB Adata SP900 Storage: 3x Seagate 2TB drives; PSU: 700 Watt Huntkey; Peripherals:  29" 21:9 AOC Q2963PM; 23" Hisense TV 1080p; Sharkoon Squad Laser mouse; Genius Imperator I Gaming Keyboard; xbox wireless remote sensor; 5.1 Logitech x530 sound system 01000010 01101001 01101110 01100001 01110010 01111001 00100000 01100100 01101111 01100101 01110011 01101110 00100111 01110100 00100000 01101101 01100001 01101011 01100101 00100000 01111001 01101111 01110101 00100000 01110000 01110010 01101111 00101110

 

 

 


#16 AndréMelsom

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Posted 14 August 2013 - 04:19 AM

what are your temps at 1.29V?
 
if you have have thermal headroom ( your below 85-90c max)
 
do as Tonny suggested and begin increasing voltage. you have a good cooler. 1.3, 1.31, 1.32 etc
 
 
once you run out of thermal headroom and you reach max temps do as Cryptonite suggested and drop the ring bus down and ENSURE your mem chips are @ 1333MHz 1.5V!


Well i cant test my temp because i Get bluescreens too quickly, so i don't have time too test. Bit i have a 240mm aio luiquid cooler so i should not have very warm tempo

#17 Cryptonite

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Posted 14 August 2013 - 04:21 AM

Well i cant test my temp because i Get bluescreens too quickly, so i don't have time too test. Bit i have a 240mm aio luiquid cooler so i should not have very warm tempo

Then do what ProKoN said.


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#18 ProKoN

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Posted 14 August 2013 - 09:25 AM

Didnt work for me, I'm just getting bluescreens every fifth minute or so.

1.29= 5 minutes in Windows
 

well it would seem you have 5 minutes of stability at 1.29V thats enough time to capture a screenshot and to get an idea of your temps.


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#19 piplupgao

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Posted 14 August 2013 - 04:27 PM

I nominate you to be on the intel response squad


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#20 ProKoN

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Posted 14 August 2013 - 06:07 PM

I nominate you to be on the intel response squad


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