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I7 Requiring more voltage than it used too - Page 2

post #11 of 19
Quote:
Originally Posted by t0adphr0g View Post
hate to say it, but overclocking causes degradation a whole hell of a lot faster. We know this fact, it is one of the downsides to overclocking.
There's absolutely no way any kind of noticeable degradation would occur on an i7 with only 1.25V over any period of time. Absolutely no way. Unless the chip is bad. Damn, even anything under 1.4V isn't going to really hurt the chip over time. 1.25 is nothing.


OP: Can you print out all of your BIOS settings for us to look at?
Edited by Plex - 12/20/10 at 7:17am
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post #12 of 19
Thread Starter 
Quote:
Originally Posted by Plex View Post
There's absolutely no way any kind of noticeable degradation would occur on an i7 with only 1.25V over any period of time. Absolutely no way. Unless the chip is bad. Damn, even anything under 1.4V isn't going to really hurt the chip over time. 1.25 is nothing.
This is what I thought, I've never really pushed past 1.35v, and that was just to see if it would hit 4ghz even with that much voltage (it didn't).

I'm still testing the new bios atm, hasnt crashed yet, so ill see if it holds up, then refine it if it does. At this moment, ive simply gone with my tried and tested voltages of the past and pushed them all up a notch.

I can list the most important of the top of my head.

Load Level 2

VCore: 1.275v
CPU PLL: 1.88
QPI VTT: 1.335
QPI PLL: 1.14
RAM VTT: 1.64
IOH:1.2

Everthing else Auto

Core Clock: 180
Multi: 21

Ram timings
8-8-8-21 - turbo/extreme ram mode disabled (completely destroys any overclock if i put this on)

Isyncronous support enabled
All power save/heat enabled downclocking modes disabled.

All i can remember of the top of my head

Thanks for the help
post #13 of 19
electron migration can occur. BUT that is not occurring.

What is occurring is too much is on auto
you need to set ram at 6x and uncore at 13x, and learn to OC. you need to turn off turbo, eist, and c1e as well as c states. You need to read an OCing guide.

Every i7 900 series can goto 4ghz with anything but stock cooler. The lack of being able to do so means you need to read more overclocking guide, find as many as you can and read them all.
Edited by Sin0822 - 12/20/10 at 8:45am
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post #14 of 19
I agree. Vcore does not degrade your chip anywhere close to HEAT. Heat will kill it way faster. I've never had a chip degrade or need more volts to keep the same overclock.
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post #15 of 19
Thread Starter 
Quote:
Originally Posted by Sin0822 View Post
electron migration can occur. BUT that is not occurring.

What is occurring is too much is on auto
you need to set ram at 6x and uncore at 13x, and learn to OC. you need to turn off turbo, eist, and c1e as well as c states. You need to read an OCing guide.

Every i7 900 series can goto 4ghz with anything but stock cooler. The lack of being able to do so means you need to read more overclocking guide, find as many as you can and read them all.
Saying that most (i wouldnt say every) 920 can do 4ghz is probably true BUT while the chip may be capable of going to 4ghz, quite alot of the later D0 chips require much higher voltages to get there. Mine for example, will i'm sure go 2 4ghz, but not at a voltage that is reasonable. As stated before my chip runs quite hot even at lower voltages, running the chip at over 1.3v pushes me up to about 85 degrees under prime 95, something i'm not comfortable with.

My C1E,, eist & c states are already disabled, and on my mobo if you turn off turbo you cannot set the multi to 21, so it must be turned on. The ram turbo and extreme modes are turned off, as stated earlier, they cause instability.

I dont want my ram at 6x, i want it at 8x, otherwise i may as well have just bought a 1333 mhz kit rather than 1600.

And my Uncore is set to double that at 16x. I didnt mention it before because as i said, it was completely from memory.
post #16 of 19
C0 920s needed 1.4v max I saw for 4ghz.

Take uncore to 2x+1 so 6x mem then 13x uncore, its more stable.
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post #17 of 19
Thread Starter 
Well good news, after upgrading to the beta bios, i am no longer having the stability issues i was before. It appears the F6 bios just didnt work for me.

16 hours of prime and i'm happy that its stable. Just need to refine my settings now to reduce voltage. Hopefully i can get it back down as low as i had it under the f4 bios, if not i'm quite tempted to just flash back to that, as it has seemed to be the most stable for me so far.

I will give this a go, and see what happens.

Quote:
Originally Posted by Sin0822 View Post
Take uncore to 2x+1 so 6x mem then 13x uncore, its more stable.
I believe i have tried this before when i was pushing for 4ghz, i tried most things. I'm just not willing to push the volts high enough to get there. Rep+
post #18 of 19
Quote:
Originally Posted by Plex View Post
There's absolutely no way any kind of noticeable degradation would occur on an i7 with only 1.25V over any period of time. Absolutely no way. Unless the chip is bad. Damn, even anything under 1.4V isn't going to really hurt the chip over time. 1.25 is nothing.


OP: Can you print out all of your BIOS settings for us to look at?
The other thing is that as long as you have Speedstep and C1E enabled, you are only at max voltages under full load anyway. I know the OP disabled all of these but most people still run them with their OCs.
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post #19 of 19
Quote:
Originally Posted by Brummie View Post
Well good news, after upgrading to the beta bios, i am no longer having the stability issues i was before. It appears the F6 bios just didnt work for me.

16 hours of prime and i'm happy that its stable. Just need to refine my settings now to reduce voltage. Hopefully i can get it back down as low as i had it under the f4 bios, if not i'm quite tempted to just flash back to that, as it has seemed to be the most stable for me so far.

I will give this a go, and see what happens.



I believe i have tried this before when i was pushing for 4ghz, i tried most things. I'm just not willing to push the volts high enough to get there. Rep+
Each bios will run differently and require different vcores for each speed. Reduce vcore only to the point where you still have full stability. (also as an aside, streaming videos and running prime at the same time may have caused issues to come up, but they probablly would have covered up issues in the long run if your overclock was close to stable)



Also to clear up some garbage talk in this thread:
CPU Degredation only occurs if you go above 1.55v vcore, let your temps realistically hit 100°C, have a physical defect, or if you allow your overclock to be unstable. Stable overclocks do not degrade your cpu. If he had truly degraded his CPU, he would have had to have been extremely unstable to get it to degrade at such low volts/temps.
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