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post #4411 of 10701
munaim1 - many thanks for looking at my question.

My bios does not have any setting like 'offset'.

My observation from trying different LLC/Power Step levels with this board (I have tried from lvl 3 to lvl 7) is that the delta or difference between max idle voltage reading and minimum load voltage reading *that I have been able to observe* remains a pretty constant 0.60v - that is, the idle will have a high peak at (as in my earlier example) 1.488v and the load will have a low observed of 1.428v. The only difference is the starting point relative to the vcore number put into bios. The lower the LLC number, the greater the sag below the 'bios set vcore' at load (though, of course, the idle voltage is closer to the setting also). So ramping up the voltage and using a lower setting has 0 net gain, it ends up being the same thing.

Unless I'm totally missing the offset function, but if so it's called something completely different.

I also did not understand your point about using 'manual voltage'...as opposed to what, going on auto? I'd never do that in an overclocked system.

I'm looking good for stability (not done) about 3 hrs of P95, first hour was just short 1344/1792, now 2 hrs blend. 4.8, 1.410 vcore set, idle 1.452 (did see momentary 1.488) and load 1.428 (spends some time at 1.440). Max temp a momentary 71C, average 65-66C load.
Edited by keto - 10/4/11 at 10:51pm
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post #4412 of 10701
Thread Starter 
Quote:
Originally Posted by keto View Post
munaim1 - many thanks for looking at my question.

My bios does not have any setting like 'offset'.

My observation from trying different LLC/Power Step levels with this board (I have tried from lvl 3 to lvl 7) is that the delta or difference between max idle voltage reading and minimum load voltage reading *that I have been able to observe* remains a pretty constant 0.60v - that is, the idle will have a high peak at (as in my earlier example) 1.488v and the load will have a low observed of 1.428v. The only difference is the starting point relative to the vcore number put into bios. The lower the LLC number, the greater the sag below the 'bios set vcore' at load (though, of course, the idle voltage is closer to the setting also). So ramping up the voltage and using a lower setting has 0 net gain, it ends up being the same thing.

Unless I'm totally missing the offset function, but if so it's called something completely different.
post a screenshots of your BIOS and we'll take it from ther, unfortunalt y Im going out at the moment and won't be back later on, however, I'll take a look and let you know what I think

My intial thought is that it's something to do with the BIOS reversion. I have come accross a lot of members that have been trying out different BIOS reversion, and one thing I do remember is that it does have something to do with voltage and llc setting.

For now I would recomend that you try and find 'someone' with a similar mobo and contact them regarding different BIOS reversions. I've mentioned this before, but my experience with gigabyte mobo's havn't been great due to reason's like this.

Here's another member that I had difficulty with: http://www.overclock.net/intel-cpus/...overclock.html

Anyways post your BIOS settings, preferably screenshots of the whole BIOS and we'll take it from there, but remember to look into the BIOS reversion thing I mentioned.



Quote:
Originally Posted by keto View Post
I'm looking good for stability (not done) about 3 hrs of P95, first hour was just short 1344/1792, now 2 hrs blend. 4.8, 1.410 vcore set, idle 1.452 (did see momentary 1.488) and load 1.428 (spends some time at 1.440). Max temp a momentary 71C, average 65-66C load.

set 1.410 - idle 1.452 - load 1.428

Now if you Reduced the LLC by one I would give this estimate:

set 1.410 - idle hopefuly lower than 1.452 - LOAD Hopefuly a little lower than 1.410 but very close.

What really happens when you set the LLC one down?
Edited by munaim1 - 10/4/11 at 10:59pm
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post #4413 of 10701
I can answer your last question very quickly. I had vcore at 1.420 and LLC at 5. My load voltage dropped to 1.416, which was too low...I need somewhere right around 1.420-1.425 at 4.8. My idle was cruising along at 1.452, with fluctuations to 1.464 *that I saw*. I know this is a bit smaller than my stated delta of 0.60 in my prior post (0.48 in this case), but I wasn't at that setting long enough to say that I observed all the fluctuations - P95 failed quickly.

I need to learn to take screenshots LOL.
I'll go investigate prior bios revisions. I have no SSD, which has been an improvement made in recent revisions, so that is of no concern to me.
Off to bed, will resume tomorrow, I'm in Mountain time zone.
Edited by keto - 10/4/11 at 11:07pm
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post #4414 of 10701
Quote:
Originally Posted by munaim1 View Post
Unfortunatly im not familiar with gigabyte mobo's or the BIOS rev, but due to the issue's that some are facing I hope that they release another BIOS update soon.

Yep without LLC, it's a bit difficult to raise the idle voltage. Hope though, without it works fine but I wouldn't hold my breath on that. If you can, try a new fresh OS install on a HDD as I mentioned in the last few posts, even if you get countless bsods your okay as it won't be your main OS drive. I would hate to install a fresh OS on my main drive (especially on an ssd).
Oh, man, I really can't be bothered with that.

I left it running all night and it's still alright, I know that's not a great test but it gives me a bit of hope.

After this, what can I do to reduce temperatures/voltage/increase lifespan? Would decreasing the PLL voltage from 1.7V help things? I basically want to be as nice to the CPU as possible, use as little power as possible, whilst keeping the 4.5GHz performance.
post #4415 of 10701
5ghz was too toasty on my chip. Still waiting for my nh-D14.
This will do for now.


Uploaded with ImageShack.us


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Had to settle for this. All my 212+ can do.
Edited by crUk - 10/5/11 at 1:23am
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post #4416 of 10701
I think that if u are using fixed Vcore there is no need to use Vdropp. It is best to find Vdropp option that keeps ur voltage constant.

Why?

Because if there is no Vdropp u can set Vcore lower in Bios to get stable in Prime95 and ur idle Vcore is lower too...

When i was OC on fixed Vcore before i used those settings(ASrock MOBO- llc lvl 2)...
I use it still even when OC on offset.
Btw offset makes even lower Vcore possible, for my chip that is.

And i agree with Munami1... it is better to get BSOD a lot than to overvolt ur hardware.
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post #4417 of 10701
http://valid.canardpc.com/show_oc.php?id=1718249

Ill just put it here... it s croatian record...
so i was wondering what u guys think about it...
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post #4418 of 10701
First of all thanks to all the contributors on this forum, I've been lurking for many weeks absorbing all of the information. I finished my new build a few nights ago and have begun overclocking and stress testing.

Thus far, I used the OC method outlined in this thread's OP.

I wanted to try to use the "offset method" but it got confusing so I decided for a more traditional fixed voltage for now.

I used the following settings per the OP with a few additions:

RAM - Manually configured per default timings (pc-1600 / 8-8-8-24 2T)
LLC - Ultra High
Speed step, c-states - Enabled / auto (defaults)
Turbo multiplier - 45
Vcore (fixed mode) - 1.335 (started with this for now)
CPU PLL Voltage - 1.70
all other voltages - defaults
CPU Current Capability - 140%
Phase and Duty Control - Extreme
EPU Power saving - Disabled
VRM Frequency - Manual - 350
Spread spectrum - disabled

So I set those settings last night, booted up first try with no issues, and I'm continuing to stress test right now at 4.5 GHz. I'm using Prime95 custom blends like this, http://www.overclock.net/14618583-post2807.html

Temps thus far:
  • Idle (highest idle value out of the 4 cores) = 36
    Max (highest idle value out of the 4 cores) = 72

Voltages thus far per Realtemp 3.67:
  • Idle Vcore VID = 0.9957
    Max Vcore VID = 1.3611 (fluctuates during Prime95 between that and 1.3561)

Few thoughts so far:
1. My biggest question is note above how my idle and max Vcore change. I thought this was only possible either with Intel/bios defaults, or by using a Vcore offset. However, in my setup, with a fixed Vcore of 1.335 my Vcore clocks down to .9957 (don't have exact value right now) and speed goes to 1.6GHz, and under load it ramps up. Am I missing something?

2. Since this is only my first try, I still have some tweaks to do. At this point since I believe I'm stable (still need a 12hr prime test), I may increase to 4.6 and beyond and see where I hit a wall.

3. I probably have some Vcore room and may look to try to decrease it a bit. I'm not sure how much higher in max temps that I'm comfortable with.

4. My Vcore per bios and Asus utility is set to 1.335v. However under load it is actually 1.3611. This is like opposite Vdroop. Is this because of the LLC of Ultra high? Should I try to tweak the system so these values try to match as close as possible?

5. Had some, possibly Asus specific, questions about Bios settings. Under CPU management, there's sections that have a "different" non-turbo multiplier setting. Is this how you configure what your minimum/idle clock down value is?
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post #4419 of 10701
Lest I mislead anyone from my posts the last couple of pages, I DID FIND DVID OFFSET in the Gibabyte bios. It's strange how it's set up though....

It's in Advanced Voltage Options, underneath CPU vcore, and greyed out when vcore is either on auto or set manually...but there's a third option (I'll edit it back in here it escapes me at the moment). When that option is picked, vcore is locked in and LLC/Multi Step is disabled/greyed out, but then Dynamic Vcore (DVID) comes to life - and that is where you can set either + or - offset.

It's there in the F4 bios, and there in the F10a bios, I flashed back and forth between them today experimenting.

Now, away I go to play with offset.
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post #4420 of 10701
Quote:
Originally Posted by alucardx View Post
4. My Vcore per bios and Asus utility is set to 1.335v. However under load it is actually 1.3611. This is like opposite Vdroop. Is this because of the LLC of Ultra high? Should I try to tweak the system so these values try to match as close as possible?
Noticed that as well. I have LCC/Phase Control set to Extreme and vcore to 1.375, running Prime it ramps between 1.38v and 1.39v. When I had it set to Ultra High it ramped up as high as 1.38, and High setting it generally stayed below 1.375. I'm guessing its due to the higher LCC setting.
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