Devil's Canyon 4790k Overclock Results

Speed addicts anonymous.

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Devil's Canyon 4790k Overclock Results

Postposted on Sat Jul 05, 2014 9:59 pm

My final results: 4.9ghz @ 1.35v with the cache/uncore at 4.7ghz @ 1.35v, XMP enabled DDR2133.

I was able to get to 5.0ghz "stable" but it took 1.45v and the temps were in the low 90s, too high for me to do a full muti-hour run of OCCT, the overtemp triggered after 2 minutes, but I did game for a bit at this just for fun.
http://i.imgur.com/qFH4JeS.png

I also delided and it dropped my temps by 10c, I was later able to drop my voltage from the 1.375v pictured below to 1.350v once I got the vcache up to speed. I did not use liquid metal TIM, just some GELID X.
Stock intel paste 90/91/90/79 http://i.imgur.com/xwNvIQQ.png
GELID extreme paste 77/79/80/70 http://i.imgur.com/3Ig2upT.png

Thoughts: Improvement from 4770k, it took almost .1v less to run the same speeds, and where my 4770k hit a wall at 4.7ghz core and 4.2ghz cache, this one kept going until the voltage/temps were too high for me. The extra caps on the bottom of the chip and under the lid may be what is helping, the paste was still inferior.

Delid Pics:
Stock Gunk http://i.imgur.com/LPO7lC1.jpg
Stock Gunk http://i.imgur.com/TxIqgI6.jpg

The vise put some nicks in the copper so I went the old C2Q route and did some lapping, glad I did, it was not flat:
Here you can see the edge damage and the start of the sanding: http://i.imgur.com/C00oizd.jpg
Going http://i.imgur.com/tXlBCry.jpg
Going http://i.imgur.com/H5FJPea.jpg
Gone http://i.imgur.com/cu9nISP.jpg

All cleaned up:
Top http://i.imgur.com/8EsxsAf.jpg
Bottom http://i.imgur.com/rtWOuR8.jpg

Computer specs:
Corsair 800D
Asus Z97 Pro
Toshiba Q Series Pro 256gb
Asus GTX670
Corsair TX950
Dtek Fusion v1 Block
Swiftech MCR320-QP Quiet Power radiator 3x120mm w/Corsair Air Series SP120PWM High Performance Edition High Static Pressure Fans
DDCT-01s Pump Laing DDC-3.2
Tygon 3603 Tubing
http://i.imgur.com/56Bpdjs.jpg

OC notes:
Code: Select all
cache 3.5ghz@1.25v, ddr1600 1.6v
4.4 1.1552v = stable 62/61/61/54
4.7 1.225v 1.2266v = stable 68/68/69/60
4.8 BSOD
4.8@1.25v BSOD

CPU 1.30v 
4.8ghz 1.300v 1.3019v = stable 79/79/79/69
4.9ghz 1.300v 1.3019v = reboot

CPU 1.32v  CPU input voltage 1.8(auto)->1.92
4.9ghz 1.325v 1.3226v = reboot
4.9ghz 1.350v 1.3514v = reboot
4.9ghz 1.375v 1.3768v = stable 90/91/89/79

-------------------------------------------------

Delided replaced TIM under hood with GELID-Extreme

4.9ghz 1.375v 1.3768v = stable 77/79/80/70
5.0ghz 1.400v 1.4016v = reboot
5.0ghz 1.425v 1.4260v = reboot
5.0ghz 1.450v 1.4507v = stable 2 minutes but was in the 90s

-----------4.9ghz @ 1.375v 1.90vinput, final tweak--------------------------
Cache 4.4ghz 1.225v = stable 81/82/84/73
Cache 4.7ghz 1.225v = lock
Cache 4.7ghz 1.300v = lock
Cache 4.7ghz 1.350v = stable 81/82/83/71
Cache 4.9ghz 1.375v = lock
Cache 4.8ghz 1.375v = lock
Cache 4.7ghz 1.325v = lock
Cache 4.7ghz 1.335v = stable 83/84/86/73 * Setting to 1.340v

XMP enabled, 4.9ghz, Cache 4.7ghz @ 1.335v
Core 1.350v 1.3514v = stable 80/80/83/71
Core 1.325v 1.3275v = 10 min fail
Core 1.340v 1.3416v = played BL2 for 2 hrs
Core 1.350v cache 1.350v FINAL
ColeLT1
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Re: Devil's Canyon 4790k Overclock Results

Postposted on Sun Jul 06, 2014 2:09 am

Glad someone got some clocks out of one of these!


Though I don't think that my H80i would be up to the task- it's good for 4.8GHz on my 2500k (I run at 4.5GHz).
Canon 6D||[24-105/4L IS USM|100/2.8L Macro IS USM|70-300/4-5.6 IS USM|40/2.8 STM|50/1.4 USM|85/1.8 USM|Samyang/Bower 14/2.8 Full-Manual Rectilinear Wide-angle|
Canon EOS-M|11-22/4-5.6 IS STM|22/2 STM|EF-M 18-55/3.5-5.6 IS STM|
For sale!|24/2.8 IS USM
|
Airmantharp
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Re: Devil's Canyon 4790k Overclock Results

Postposted on Sun Jul 06, 2014 7:47 am

That seems nice. The 4790K seems well worth purchasing just for the stock speeds and not being feature cut. I'd be happy to get one and run it at stock speed.
flip-mode
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Re: Devil's Canyon 4790k Overclock Results

Postposted on Sun Jul 06, 2014 1:14 pm

flip-mode wrote:That seems nice. The 4790K seems well worth purchasing just for the stock speeds and not being feature cut. I'd be happy to get one and run it at stock speed.


Agreed, during these summer months I may just run it at stock speeds to keep my office cooler.
ColeLT1
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Re: Devil's Canyon 4790k Overclock Results

Postposted on Thu Jul 10, 2014 6:12 am

flip-mode wrote:That seems nice. The 4790K seems well worth purchasing just for the stock speeds and not being feature cut. I'd be happy to get one and run it at stock speed.


No kidding... especially when ASUS boards will even default to running it at 4.4Ghz with a minimal bump in voltages and still good for decent temps. My experience with a 4770K seems just silly by comparison. :P
Kougar
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Re: Devil's Canyon 4790k Overclock Results

Postposted on Thu Jul 10, 2014 6:34 am

Nice work and thanks for the log.
Ryhadar
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Re: Devil's Canyon 4790k Overclock Results

Postposted on Thu Jul 10, 2014 7:13 am

Thank you for taking the risk of removing the lid and doing the experiment for us. Very nice work!
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Re: Devil's Canyon 4790k Overclock Results

Postposted on Sat Jul 19, 2014 12:22 am

Wow-- still that big of an improvement switching TIM's under the lid...
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