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i7 2600k max vcore

post #1 of 9
Thread Starter 
Getting my new i7 2600k this weekend and will be pushing for 5GHz underwater of course. I have seen mixed reviews but no actual data other than speculation that running the Sandy Bridge chips around 1.52v will degrade the life faster or at all.

Just seeing if anyone actually has info on this as to just keeping temps low at that range is going to push water cooling to the max.
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post #2 of 9
I originally misread your post..

but if you go here you can see only one person is running at 1.52v.. id say follow his posts and see what his chip's life ends up being.. you wont find me up there..

http://www.overclock.net/t/968053/official-the-sandy-stable-club-guides-voltages-temps-bios-templates-inc-spreadsheet
Edited by theking - 3/8/12 at 11:16am
 
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post #3 of 9
This document states that 1.52v is max "safe" and nothing more or less ,i have pushed my chip on H2O- 1.64v few times (when benching only-no degradation ),on the other hand there are few reports of this chips degrading when folding @ high frequency's/voltage for prolong time
Keep it under 1.4~ 1.45v fixed or offset mode and you should be fine
Edited by coolhandluke41 - 3/8/12 at 11:30am
    
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post #4 of 9
Folding/100% load for duration on anything higher than ~1.4v will likely cause degradation.

Isn't 1.52v the max vid specified by intel? In which case it will be the most voltage needed to run stock clocks based on chip quality. It does not mean 1.52v is a safe number for overclocking.

It's going to be hit or miss, the 2600k won't respond like older 775 cpu's that just want more voltage. Some have multiplier limits that you wont be able to stabilize/boot at and the voltage requirements are going to go up almost exponentially after about 4.5-4.5ghz (ie: 4.5 @ 1.28v, 4.6 @ 1.3v, 4.7 @ 1.35v, 4.8 @ 1.4-1.42v, 5.0 @ 1.5-1.55v)

Most chips will probably reach 5.0 at something between 1.4 and 1.55v depending on the quality.

I run 4.8 @ 1.41-1.42v now and its been stable for 8 months.... prior to that I was running 4.8 @ 1.38v while folding for days at a time and testing up around 5.0 and the chip degraded in a matter of days.

TBH i tried 5.0, 4.8, 4.6 as 24/7 clocks and i cannot tell the difference at all. Its so overkill for normal stuff.
    
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post #5 of 9
Thread Starter 
Quote:
Originally Posted by rmp459 View Post

Folding/100% load for duration on anything higher than ~1.4v will likely cause degradation.
Isn't 1.52v the max vid specified by intel? In which case it will be the most voltage needed to run stock clocks based on chip quality. It does not mean 1.52v is a safe number for overclocking.
It's going to be hit or miss, the 2600k won't respond like older 775 cpu's that just want more voltage. Some have multiplier limits that you wont be able to stabilize/boot at and the voltage requirements are going to go up almost exponentially after about 4.5-4.5ghz (ie: 4.5 @ 1.28v, 4.6 @ 1.3v, 4.7 @ 1.35v, 4.8 @ 1.4-1.42v, 5.0 @ 1.5-1.55v)
Most chips will probably reach 5.0 at something between 1.4 and 1.55v depending on the quality.
I run 4.8 @ 1.41-1.42v now and its been stable for 8 months.... prior to that I was running 4.8 @ 1.38v while folding for days at a time and testing up around 5.0 and the chip degraded in a matter of days.
TBH i tried 5.0, 4.8, 4.6 as 24/7 clocks and i cannot tell the difference at all. Its so overkill for normal stuff.

Yeah the thing is I don't do normal stuff, while compiling and decompiling kernels for android phones i need as much juice as I can possibly get. Also free lance some 3d studio max work. So I won't be doing it to do it. I have a purpose and it makes me money. My i7 960 right now has a core that went down and i just have to replace because i am falling behind in work. All this "work" is extra that I do on the side for small business in my area for there websites etc.
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post #6 of 9
If you do all that heavy duty why have you not chosen for the 3960k ?
(edit) just wondering.
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post #7 of 9
it will come down to how good the chip is so to get 5.0GHz hopefull you can get it stable at up to 1.42.. 1.52 will ok if you need too but if you get a decent custom loop like a starter kit such as a XSPC 750 Rasa RX240 or RX360 kit im sure you will be fine thumb.gif
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post #8 of 9
Thread Starter 
Quote:
Originally Posted by AoHxBram View Post

If you do all that heavy duty why have you not chosen for the 3960k ?
(edit) just wondering.

Short Answer:

$700

Long Answer:

The amount of time to do the work wouldn't be justifiable to spend the extra $700. Python, GNU Make, JDK, and Git don't utilize 6-core at the moment.
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post #9 of 9
Quote:
Originally Posted by rmp459 View Post

Isn't 1.52v the max vid specified by intel? In which case it will be the most voltage needed to run stock clocks based on chip quality. It does not mean 1.52v is a safe number for overclocking.

Amen...

I still don't understand why most people think VID=Vcore...that's not the case...
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