[Official] The Sandy Stable Club **Guides, Voltages, Temps & BIOS Templates** Inc SPREADSHEET - Page 729 - Overclock.net - An Overclocking Community

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post #7281 of 10710 (permalink) Old 02-14-2012, 03:37 PM
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Yes, you should not fail Prime95 blend if it's truly stable. With how I use my CPU I wanted to go the extra mile with my stability so I did 40 hours stable.

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post #7282 of 10710 (permalink) Old 02-14-2012, 03:39 PM - Thread Starter
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Quote:
Originally Posted by cluelessguy View Post

I've been googling the whole "stable" thing and it's really mixed opinions on what is and isn't stable, I mean where do you draw the line. Obviously as per the first post, once I've passed 12hours I'll post my screenshot with the required information.

But you could test for 12 hours and it might crash on the 13th hour had you let it run.

Stability is hugely subjective, for example leaving a 20/30 tabs open and playing bfbc2 with fraps will surely drain the available RAM, that for someone could be everday usage.

Taking that into account I find that being able to stay stable for scenerio's like that, decreases your chances of getting any kind of bsod, therefore 'MORE' stability, which might be overkill to some but desirable for plenty of people.

On that note, those that have passed the blend run at 1600mb are stable for how they run their rig, for example, gaming 24/7 bfbc2 with no problems, however, it 'may' not be stable for high ram usage scenerio's which could be unlikely for some as they won't be running fraps and have 20/30 tabs open in the background because that's not how they run their rig.

Once you have done a 12hour+ blend whether it be custom or standard blend, there won't be a need to run it again and im pretty certain that you won't get a bsod that relates to unstability of your overclock.

There will ALWAYS be different opinons about this whole stability issue.

This is JUST the stable club, whether you go for, a standard blend or a custom blend, 12 or 48 hoursyou should be stable for what you use it for, stability is stability for your own use. If standard doesn't work for you, then go ahead and do a custom blend, that's the way I see it.

This is the stable thread, that's means general stability and extreme stability, both are included, however those with 8gb+ should really want to be using custom blend rather than normal blend (1600mb) as it'll stress RAM and the IMC of the chip BUT ITS TOTALLY UPTO YOU!!!



EDIT:

Will update the Spreadsheet in a few moments, thank you for your patience. thumb.gif
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post #7283 of 10710 (permalink) Old 02-14-2012, 06:08 PM
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A question for my fellow overclockers...

I've been running at 4.7GHz for quite some time now. It takes 1.45v to do this. I never get above the mid 60's even when running Prime or Intel Burn test. When folding, with my office door closed, I never exceed 62C.

I can run at 4.5GHZ using 1.375v or so. Does it make sense to use this much more voltage for 200MHz? I play games, I fold, I surf the net... thats about it.


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post #7284 of 10710 (permalink) Old 02-14-2012, 06:53 PM
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Originally Posted by uniwarking View Post

A question for my fellow overclockers...
I've been running at 4.7GHz for quite some time now. It takes 1.45v to do this. I never get above the mid 60's even when running Prime or Intel Burn test. When folding, with my office door closed, I never exceed 62C.
I can run at 4.5GHZ using 1.375v or so. Does it make sense to use this much more voltage for 200MHz? I play games, I fold, I surf the net... thats about it.

I'm able to run 4.7 @ 1.36 stable smile.gif never go above 64c smile.gif try to low a bit of you settings just a bit and see if you can get stable on it , i was trying to get stable 4.8 @1.36 but only for 9 hours on prime 4.8 @ 1.4 i can be stable easily.

4.8 @ 1.36 Validate 9 hours stable

4.9 @ 1.44 Validate CPU-z got different frequence but i was 4.9

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post #7285 of 10710 (permalink) Old 02-14-2012, 07:00 PM
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1.45v is the absolute minimum for me at 4.7, if I go any lower I loose stability.

My questions is, is it worth the extra 200MHz to jump from 1.375v (or possibly lower) up to 1.45v? I know these voltages are not extreme by any means and my temp isn't anything to be concerned about, I just wonder if the extra heat and wear and tear are worth it.

I've dropped my GTX 580 from 960 to 940 because I can go from 1.135v ~ 1.150v(for folding -advmethods) down to 1.125 (possibly lower, I've not had the time to test further).



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post #7286 of 10710 (permalink) Old 02-14-2012, 07:35 PM
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Quote:
Originally Posted by uniwarking View Post

1.45v is the absolute minimum for me at 4.7, if I go any lower I loose stability.
My questions is, is it worth the extra 200MHz to jump from 1.375v (or possibly lower) up to 1.45v? I know these voltages are not extreme by any means and my temp isn't anything to be concerned about, I just wonder if the extra heat and wear and tear are worth it.
I've dropped my GTX 580 from 960 to 940 because I can go from 1.135v ~ 1.150v(for folding -advmethods) down to 1.125 (possibly lower, I've not had the time to test further).

Really, if your temps are good, it does not matter. From an efficiency standpoint, it really is not going to make much of a difference to have the extra 200 MHZ. Doubt you will miss it. That will consume a little less power.

If you have tried to lower voltages and found the 1.45 is what it takes, but still have good temps, then it is fine. I am running 4.5 now at 1.42. Took 1.488 for 4.8.

AS for the video card, I say use the same principal. If the temps are good, run with.

It is hard to compare all of our wonderful systems, as even if you have the exact same components, they will all OC differently. biggrin.gif
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post #7287 of 10710 (permalink) Old 02-14-2012, 10:30 PM
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Originally Posted by selluminis View Post

Really, if your temps are good, it does not matter. From an efficiency standpoint, it really is not going to make much of a difference to have the extra 200 MHZ. Doubt you will miss it. That will consume a little less power.
If you have tried to lower voltages and found the 1.45 is what it takes, but still have good temps, then it is fine. I am running 4.5 now at 1.42. Took 1.488 for 4.8.
AS for the video card, I say use the same principal. If the temps are good, run with.
It is hard to compare all of our wonderful systems, as even if you have the exact same components, they will all OC differently. biggrin.gif
Quote:
Originally Posted by uniwarking View Post

1.45v is the absolute minimum for me at 4.7, if I go any lower I loose stability.
My questions is, is it worth the extra 200MHz to jump from 1.375v (or possibly lower) up to 1.45v? I know these voltages are not extreme by any means and my temp isn't anything to be concerned about, I just wonder if the extra heat and wear and tear are worth it.
I've dropped my GTX 580 from 960 to 940 because I can go from 1.135v ~ 1.150v(for folding -advmethods) down to 1.125 (possibly lower, I've not had the time to test further).

hye guys..
i think i am the only person who had a "vcore sucker sandy"..my sandy also need high vcore in order to achieve stability..at 4.5 ghz..it barely survive prime blend at 1.38 vcore...we all in the same boat..but the mantra was really good, " as long the temps is good, it good to go" which i always implies when overclocking..but sometime the vocre it self killed the proceesor. hope it not happen in our case..biggrin.gif


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post #7288 of 10710 (permalink) Old 02-14-2012, 10:40 PM
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Quote:
Originally Posted by uniwarking View Post

1.45v is the absolute minimum for me at 4.7, if I go any lower I loose stability.
My questions is, is it worth the extra 200MHz to jump from 1.375v (or possibly lower) up to 1.45v? I know these voltages are not extreme by any means and my temp isn't anything to be concerned about, I just wonder if the extra heat and wear and tear are worth it.
I've dropped my GTX 580 from 960 to 940 because I can go from 1.135v ~ 1.150v(for folding -advmethods) down to 1.125 (possibly lower, I've not had the time to test further).

Looks like you are at the point of diminishing returns of Vcore. Me personally, I would not be comfortable with that much Vcore. No, it's probably not "worth it,' but it comes down to how much voltage you are comfortable with. If however you are folding with your CPU as well and fighting for every MHz, then I would probably stay where you are, temps allowing.



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post #7289 of 10710 (permalink) Old 02-15-2012, 05:11 AM
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Quote:
Originally Posted by munaim1 View Post


Once you have done a 12hour+ blend whether it be custom or standard blend, there won't be a need to run it again and im pretty certain that you won't get a bsod that relates to unstability of your overclock.

There will ALWAYS be different opinons about this whole stability issue.

This is JUST the stable club, whether you go for, a standard blend or a custom blend, 12 or 48 hours you should be stable for what you use it for, stability is stability for your own use. If standard doesn't work for you, then go ahead and do a custom blend, that's the way I see it.

 

You've been a very valuable source of information munaim1 and I'm glad that you've kept this thread going for us all. I'm truly grateful for all of the information in this thread from you and other users.

 

So please, don't take my following thoughts negatively; they are meant to be constructive criticism and encouragement for everyone here to pursue the most stability possible.
 

My machine won't fail at 12, 13, or even 14 hours when I am close to stability; my machine hates the 2688K FFT length and will fail there, at roughly the 15 hour mark, if I leave the time to test each FFT at the default of 15 minutes. In this case, it's not my opinion that 12 hours is not enough, it's a fact for my machine that 12 hours (at the default 15 minute time frame) is not enough. It doesn't matter if I do a default Blend or a Custom Blend to use > 90% memory; I still have the most trouble with the 2688K FFT length that comes up as test #60.

 

Although meeting the requirements to get the "Stable Club" badge in this thread is a default 15 minute per FFT length and 12 hour overall test, there are machines out there, like mine, that will consistently pass 12 hours with these settings and consistently fail on later FFT lengths. Thus, it is my opinion that it is far more important to test every FFT length than it is to test 48 of 60 FFT lengths.

 

I urge anyone who is seriously concerned about stability and wants to make only one pass to either test for 17.5 hours (or slightly more) in order to hit all 70 of the FFT lengths and qualify for the Stable Club, rather than meeting the minimum 12 hours.

 

If 18 hours is not an option, but two separate 12 hour tests is an option, for some reason, then I urge anyone seriously concerned about stability to make a second pass with a Custom Blend at 10 minute time to test each FFT length for 12 hours, which won't qualify for this club.

 

 

Here is a list of all of the FFT lengths Prime95 Blend will test on an i5 CPU. (Click to show)

 

 

  1. 640K
  2. 8K
  3. 720K
  4. 12K
  5. 800K
  6. 16K
  7. 960K
  8. 24K
  9. 1120K
  10. 32K
  11. 1200K
  12. 48K
  13. 1344K
  14. 64K
  15. 1536K
  16. 80K
  17. 1680K
  18. 96K
  19. 1792K
  20. 128K
  21. 2048K
  22. 160K
  23. 2304K
  24. 224K
  25. 2560K
  26. 256K
  27. 2800K
  28. 320K
  29. 3072K
  30. 384K
  31. 3360K
  32. 448K
  33. 3584K
  34. 512K
  35. 576K
  36. 672K
  37. 10K
  38. 768K
  39. 14K
  40. 896K
  41. 20K
  42. 1024K
  43. 28K
  44. 1152K
  45. 40K
  46. 1280K
  47. 56K
  48. 1440K
  49. 72K
  50. 1600K
  51. 84K
  52. 1728K
  53. 112K
  54. 1920K
  55. 144K
  56. 2240K
  57. 192K
  58. 2400K
  59. 240K
  60. 2688K
  61. 288K
  62. 2880K
  63. 336K
  64. 3200K
  65. 400K
  66. 3456K
  67. 480K
  68. 3840K
  69. 560K
  70. 4096K

 

 

 

I am in no way suggesting that the requirements for the "Stable Club" or "Super Stable Club" be changed; I simply want to let everyone know that 12 hours won't hit every possible FFT and your machine may have a weakness for a FFT length in the #49 to #70 range that you'll never find if you stop at 12 hours.

 

 

In my personal experience, 2688K is every but as much of a SB killer as 1344K and 1792K are. (Hmmm, 2688K is also 1344K x 2 ... coincidence?)




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post #7290 of 10710 (permalink) Old 02-15-2012, 05:21 AM
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One noobish question about Prime95, what are these FFTs? Whats the difference of small FFT and large FFT?
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