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Oc on my i5 6600k. Have i won the lottery?
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sneipen
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Videocard: Nvidia 1080 2ghz
Processor: Intel i5 6600k 4.7ghz
Mainboard: MSI GAMING PRO CARBON
Memory: 16GB 3000MHZ DDR4
Soundcard:
PSU: Corsair 620w
Question Oc on my i5 6600k. Have i won the lottery? - 06-10-2017, 22:33 | posts: 12

Im just asking because im curious after reading about 6600k oc..
My 6600k have been oc'ed to 4.7ghz for quite a while now, before 4.6. Vcore on 4.6 was 1.26. Now i just run 4.7 at 1.3v because its the setting it loads up in. But its stable under 1.3v. Reason i dont bother test that much is that i have no problems with temps and its stable. Dont want to fix anything thats not broken. But i had no problem running in 1.27v when tweaking in msi commandcenter when i tried that couple of times.. Havent tried under.
But, how is 4.7ghz or higher with a vcore around 1.3 or under? I havent tried clocking it over, yet. Dont see any reason why at the moment. Even tho i need to test it to see how far it will go in the future.
   
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Agent-A01
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Videocard: 1080Ti H20
Processor: i7 5930K 4.7GHz H20
Mainboard: ASUS X99-AU31
Memory: G.Skill 32GB 3200C12
Soundcard: ASUS Phoebus
PSU: EVGA P2-1200W
Default 06-10-2017, 22:51 | posts: 9,392 | Location: USA

4.7 @ 1.3 is quite average.
   
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Labyrinth
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Videocard: AMD 290 4GB
Processor: i5 6600K 4.5Ghz
Mainboard: Asus Z170 Pro Gaming
Memory: Kingston 8GB DDR4 @ 2666
Soundcard: Xonar DSX
PSU: Corsair CS750M
Default 06-19-2017, 08:40 | posts: 4,281 | Location: Cheshire, England

Now try 5ghz
   
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sneipen
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Videocard: Nvidia 1080 2ghz
Processor: Intel i5 6600k 4.7ghz
Mainboard: MSI GAMING PRO CARBON
Memory: 16GB 3000MHZ DDR4
Soundcard:
PSU: Corsair 620w
Default 06-19-2017, 16:14 | posts: 12

I dont need 1.3, i ran it on 1.26 for a while, also i had it clocked to 4.6 on 1.24v. Worked ok in bf1 when i played it, and that really stress my cpu. Didnt test much with cpu benchmarks tho..
I reset bios a while ago, didnt have battery in and power went away. So thats why i have it on 1.3v, dont have any issues with temperature and it works like a charm, so im just lazy.

I will, some day.
What voltage should i start with, i dont thing 1.3 is going to be stable. I got the impression that this cpu dont like the 5ghz mark without having a high vcore.
Also heard that to high voltage can also make it unstable. Is there any truth to this statement, if the temps are ok.
Whats the temperature limit before its unhealthy for the cpu?
Any advice?
Tnx

Last edited by sneipen; 06-19-2017 at 16:17.
   
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Tyrchlis
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Videocard: Gigabyte Aorus GTX 1080Ti
Processor: Core i7 7700K
Mainboard: Asus TUF Z270 Mark 1
Memory: 32Gb DDR4 3200mhz
Soundcard:
PSU: Corsair HX850i
Default 06-19-2017, 19:15 | posts: 65

People having varying ideas of temperature safety margins, however I look at it from the base set by the Intel specs. Core i5 6600K has a tjunction of 100C when running at stock. For safety margin I typically apply a 1:1 ratio of percentage of safety margin reduction versus clock speed increase.

Example: If I commit a 10% overclock, I would cut 10% from tjunction as my safety margin generally. In this case, 100C being tjunction for stock speed, a 10% overclock would make me consider 90C the point I need to avoid exceeding to avoid long term, slow damage. There are plenty of variables to adjust this simple formula with, however the base formula itself is sound.

These temps do not guarantee stability, they only reduce odds of damage. This formula is only intended to be an additional factor of consideration while finding the right voltage/clock speed balance, stability itself is only shown by an extended run of Prime95 for 8 hours or more, though some OC circles actually will scoff at anything less then 12 hours Prime95 with small FFTs specifically.

Last edited by Tyrchlis; 06-19-2017 at 19:18.
   
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Tyrchlis
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Videocard: Gigabyte Aorus GTX 1080Ti
Processor: Core i7 7700K
Mainboard: Asus TUF Z270 Mark 1
Memory: 32Gb DDR4 3200mhz
Soundcard:
PSU: Corsair HX850i
Default 06-19-2017, 19:21 | posts: 65

If you come into a convo and claim your overclock ran 12 hours Prime95 small FFTs and never exceeds the temperatures in the formula I outlined, I can promise you that the ONLY people who will ever give you grief about your claims are purely ignorant trolls. 12 hours of Prime95 and reasonable temperatures are MORE then enough proof to claim stability for your overclock in any conversation you should find yourself in and anybody giving ya grief past that just sucks
   
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