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El_Capitan's i5-4670K Delidding and Lapping Comparisons Project (I

4670k Delidding Lapping Haswell

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#1 El_Capitan

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Posted 06 November 2014 - 12:28 PM

This will be an ongoing project.

 

I just started diving into Haswell overclocking with the i5-4670K (and also Devil's Canyon i5-4690K), and I'm not liking it as much as Ivy Bridge's i5-3570K. Heat is a huge factor for holding back overclocking stability, and it seems that Intel isn't going to change back to soldering the IHS to the die anytime soon.

 

So, from delidding Ivy Bridge CPU's alone, heat isn't a limiting factor. You can see from my "This is why I like delidding Ivy Bridge CPU's" thread. Haswell and Devil's Canyon, on the other hand, get pretty hot. An overclock to 4.4GHz at 1.25V's is pretty much average, and you can expect temperatures over 90C during 100% CPU load stability tests with a good $70+ cooling solution (will edit after testing).

 

What happens if we delid it, and then also lap the CPU? How much of a difference will each of those modifications make?

 

Test Equipment and Setup:

i5-4670K with 4x4GB memory (more details later)

ASUS Z97m-Plus Motherboard (more details later)

Overclock to 4.4GHz at 1.25V's with 1:1 Cache ratio (more details later)

Hammer and vice method for delidding

Hand sanding from 400 grit to 2,500 grit for CPU lapping

Bosch ROS20VS (orbital sander) from 800 grit to 12,000 grit for CPU lapping

Hopkins 09515 Pocket Surface Level 

Corsair H80 in push/pull (fan details later)

Apogee HD CPU Waterblock and radiator in push/pull (radiator and fan details later)

Noctua NT-H1 for the die and IHS, and also for the CPU and CPU cooler (might change)

 

 

Testing Method:

2 hours of Prime95 Blend Tests (might change - I wouldn't want to burn out my CPU)

Real Temp 3.7 for temperature monitoring

 

Test 1:

Default i5-4670K CPU (not delidded or lapped) on Corsair H80

Default i5-4670K CPU (not delidded or lapped) on Custom Watercooling

 

Test 2:

Delidded i5-4670K on Corsair H80

Delidded i5-4670K on Custom Watercooling

 

Test 3:

Delidded and hand lapped to 2500 grit i5-4670K on Corsair H80

Delidded and hand lapped to 2500 grit i5-4670K on Custom Watercooling

 

Test 4:

Delidded and machine lapped to 12,000 grit i5-4670K on Corsair H80

Delidded and machine lapped to 12,000 grit i5-4670K on Custom Watercooling

 

Test 5:

Delidded and machine lapped to 12,000 grit i5-4670K on Corsair H80 with higher overclocking and voltages

Delidded and machine lapped to 12,000 grit i5-4670K on Custom Watercooling with higher overclocking and voltages

 

Conclusion and Results:

TBD


Edited by El_Capitan, 06 November 2014 - 03:31 PM.


#2 MercuryDoun

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Posted 06 November 2014 - 01:46 PM

Well I am very interested in seeing these results... Please continue.


*My System*
>< CaseCorsair 350D >< PSUCorsair AX AX760 >< MoBoASUS Maximums VII Gene ><

>< CPUi5-4690k @ 4.8GHz >< CPU CoolerCorsair H110 >< TIM: Artic Silver MTX ><

>< RAMGskill Trident 16GB(2x8gb) 2400MHz @ 10-12-12-2T ><

>< SSD1Samsung 840 pro 512GB SSD >< SSD2Crucial Sata3 480GB SSD ><

>< GPUEVGA nVidia GTX 980 @ 1500mhz/7600mhz >< MonitorSamsung U28D590 4k monitor of awesomeness ><

 

My gold plated butt-plug business is being sued by Apple. Apparently they have a patent for overpriced crap for a holes.

 


#3 TimeMachine

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Posted 06 November 2014 - 01:52 PM

Interested as well! Might need to do this to my i7 950.


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#4 MercuryDoun

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Posted 06 November 2014 - 02:12 PM

Also, you should get the baseline/control numbers for the customer water cooling part as well.


*My System*
>< CaseCorsair 350D >< PSUCorsair AX AX760 >< MoBoASUS Maximums VII Gene ><

>< CPUi5-4690k @ 4.8GHz >< CPU CoolerCorsair H110 >< TIM: Artic Silver MTX ><

>< RAMGskill Trident 16GB(2x8gb) 2400MHz @ 10-12-12-2T ><

>< SSD1Samsung 840 pro 512GB SSD >< SSD2Crucial Sata3 480GB SSD ><

>< GPUEVGA nVidia GTX 980 @ 1500mhz/7600mhz >< MonitorSamsung U28D590 4k monitor of awesomeness ><

 

My gold plated butt-plug business is being sued by Apple. Apparently they have a patent for overpriced crap for a holes.

 


#5 El_Capitan

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Posted 06 November 2014 - 03:29 PM

Also, you should get the baseline/control numbers for the customer water cooling part as well.

Making me work extra, I see how it is. :(



#6 IVIYTH0S

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Posted 06 November 2014 - 05:02 PM

Cool, I'm looking forward to see :)

 

One question:

 

2 hours of Prime95 Blend Tests (might change - I wouldn't want to burn out my CPU)

Burn out your CPU?


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#7 ccokeman

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Posted 06 November 2014 - 06:24 PM

Dont think those chips are on the I'll burn out at the two hour mark chips! 

 

Would like to see the results as compared to a baseline result. 


Processor Intel Core I7 4690X  4.3Ghz
Memory G.Skill RipJaws  32GB 2400Mhz
Motherboard ASUS Rampage IV BE
Graphics  GTX TitanX x2
Power Corsair AX 1200,
Monitor ASUS PQ321Q
Cooling Liquid by comittee

Storage  OCZ RevoDrive 350 480GB  Seagate 8TB
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Also tagged with one or more of these keywords: 4670k, Delidding, Lapping, Haswell