El_Capitan Posted November 6, 2014 Posted November 6, 2014 (edited) 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 November 6, 2014 by El_Capitan 1 Share this post Link to post Share on other sites More sharing options...
MercuryDoun Posted November 6, 2014 Posted November 6, 2014 Well I am very interested in seeing these results... Please continue. Share this post Link to post Share on other sites More sharing options...
TimeMachine Posted November 6, 2014 Posted November 6, 2014 Interested as well! Might need to do this to my i7 950. Share this post Link to post Share on other sites More sharing options...
MercuryDoun Posted November 6, 2014 Posted November 6, 2014 Also, you should get the baseline/control numbers for the customer water cooling part as well. Share this post Link to post Share on other sites More sharing options...
El_Capitan Posted November 6, 2014 Posted November 6, 2014 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. Share this post Link to post Share on other sites More sharing options...
IVIYTH0S Posted November 7, 2014 Posted November 7, 2014 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? Share this post Link to post Share on other sites More sharing options...
ccokeman Posted November 7, 2014 Posted November 7, 2014 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. Share this post Link to post Share on other sites More sharing options...
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