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[Official] The Ivy Bridge Stable / Suicide Club **Guides, Voltages, Temps & BIOS Templates** Inc SPREADSHEET - Page 127

post #1261 of 3792
Quote:
Originally Posted by mandrix View Post

In my opinion it's not stable. It's not a question of "how stable", either it is or isn't. Doesn't mean you can't do most anything you want to do without crashing, just means it's an unknown, it may or may not crash or cause errors.
You have a good point so I went ahead and tried to increase the offset to 0.035V. Prime95 produced an error after only 3 hours!


So I tried going back to where I had it before at 0.030V. I tried a custom blend and it did an entire loop of prime95 v27.7 in about 21 hours. I stopped it after reaching 24 hours, no errors. So I don't know what to make of the first run that produced an error after 14 hours default blend, when this time I was able to make it to 24 hours. What do you think?


Here is my updated proof for the stable club. 24 hours, custom blend.

369

The extra details:
  • ASUS z77-V Deluxe board with 3570k
  • X.M.P. settings for RAM, 16GB, 1866Mhz
  • x45 with vcore offfset: 0.030V
  • Internal PLL Overvoltage: Disabled
  • CPU Spread Spectrum: Disabled
  • LLC: "High" (50%)
  • CPU Power Phase Control: Optimized
  • CPU Power Duty Control: T-Probe
  • EIST (Enhanced Intel SpeedStep Technology): Enabled
  • C1E: Enabled
  • C3: Disabled
  • C6: Disabled
  • Package C State Support: Disabled

Edited by Italianguy - 6/26/12 at 7:24am
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post #1262 of 3792
Is setting LLC to Extreme (100%) safe for the system? Apparently High/Ultra High won't cut it for my chip.
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post #1263 of 3792
Quote:
Originally Posted by jjsoviet View Post

Is setting LLC to Extreme (100%) safe for the system? Apparently High/Ultra High won't cut it for my chip.

It has been recommended to not use Extreme because it overshoots the voltage, and you will get high voltage spikes that are bad for your cpu. A little vdroop is actually a good thing. Ultra High with a little extra vcore is better than Extreme with a little less vcore.
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post #1264 of 3792
Quote:
Originally Posted by bgineng View Post

It has been recommended to not use Extreme because it overshoots the voltage, and you will get high voltage spikes that are bad for your cpu. A little vdroop is actually a good thing. Ultra High with a little extra vcore is better than Extreme with a little less vcore.


I'll try Ultra High again and see if that stabilizes. But man, I don't want to spend another day or two testing it with Prime blend again. :|
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post #1265 of 3792
Quote:
Originally Posted by jjsoviet View Post

I'll try Ultra High again and see if that stabilizes. But man, I don't want to spend another day or two testing it with Prime blend again. :|

I went through this when I got my 3770k. Annoying, but necessary.
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post #1266 of 3792
Quote:
Originally Posted by bgineng View Post

I went through this when I got my 3770k. Annoying, but necessary.

This is weird, though. When I remember setting LLC to Ultra High (level 2 in my mobo), the load voltage is lower than the VID as seen on Core Temp. For example, the VID is 1.28V and my load Vcore is at around 1.26-1.27V, which leads me to believe that the vdroop(?) is what's causing the BSOD errors. The error code is 0x124, which means I need to pump in more Vcore.

If I understand it correctly, VID is the voltage that Intel guarantees the chip would run stable; so, since my earlier attempts at increasing vcore offset still give me a lower load voltage than VID, then that means I'm not providing the chip enough juice. Is that correct? With LLC set to Extreme or Level 1, my load Vcore is just slightly higher than my VID. Currently it's 1.296V Vcore and 1.2860-1.2910 VID and the thing is rock solid even at 15 hours of Prime95 blend.
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post #1267 of 3792
Quote:
Originally Posted by jjsoviet View Post

This is weird, though. When I remember setting LLC to Ultra High (level 2 in my mobo), the load voltage is lower than the VID as seen on Core Temp. For example, the VID is 1.28V and my load Vcore is at around 1.26-1.27V, which leads me to believe that the vdroop(?) is what's causing the BSOD errors. The error code is 0x124, which means I need to pump in more Vcore.
If I understand it correctly, VID is the voltage that Intel guarantees the chip would run stable; so, since my earlier attempts at increasing vcore offset still give me a lower load voltage than VID, then that means I'm not providing the chip enough juice. Is that correct? With LLC set to Extreme or Level 1, my load Vcore is just slightly higher than my VID. Currently it's 1.296V Vcore and 1.2860-1.2910 VID and the thing is rock solid even at 15 hours of Prime95 blend.

Your chip should run stable at VID at stock clocks. VID is kind of a general curve defined by intel for each individual processor. At higher clocks, VID won't necessarily be correct. For example, I need an offset of .035v (VID + .035volts), giving me 1.284-1.290 volts to run at 4.6. So the only reason you really ever need to reference VID is when you are trying to determine an offset for an offset overclock. If you are just using fixed voltages, then you don't have to worry about VID at all.
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post #1268 of 3792
Quote:
Originally Posted by bgineng View Post

Your chip should run stable at VID at stock clocks. VID is kind of a general curve defined by intel for each individual processor. At higher clocks, VID won't necessarily be correct. For example, I need an offset of .035v (VID + .035volts), giving me 1.284-1.290 volts to run at 4.6. So the only reason you really ever need to reference VID is when you are trying to determine an offset for an offset overclock. If you are just using fixed voltages, then you don't have to worry about VID at all.

That's the weird thing. I've tried to do a +0.020V offset yesterday and the load voltage is somehow lower than VID. Is that supposed to happen?

I'm confused right now. frown.gif
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post #1269 of 3792
For my 3770\Sabertooth pairing, I found that LLCs of ulta-high and extreme actually decreased stability compared to High or Medium for a given load voltage, at least at sub 4.7 clocks. YMMV.
post #1270 of 3792
Quote:
Originally Posted by jjsoviet View Post

That's the weird thing. I've tried to do a +0.020V offset yesterday and the load voltage is somehow lower than VID. Is that supposed to happen?
I'm confused right now. frown.gif

What clock speed are you trying for? .02 offset with what level of LLC?
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