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[Official] MSI GTX 680 Lightning Owners Club - Page 659

post #6581 of 7827
Quote:
Originally Posted by Kimir View Post

LN2 bios doesn't throttle, one more reason to use it.

Yes, I know; but I'm wondering why nvidia clearly prefers thermal throttling to start at 70C when they also say that the 680 is meant to "operate reliably" (obviously not the same thing as "last forever") at 98C. There is quite a gap there, quite an inconsistency.
post #6582 of 7827
Quote:
Originally Posted by gl0ry View Post

What drivers are you using? Anything past 314.07 won't let you adjust voltage higher than 1.212. Bios voltage only goes up to 1.212, anything higher requires software control (which nvidia has disabled past their 1.175).

I have tried everything...... flashing 3A bios, mod AB 2.2.4... NV314.07 and i cant get the voltage over 1.21

How do i do this and what am i missing in this OC... This is my first atempt to OC my Lighting and i cant get pass 1250 mhz
Edited by Thomoe - 4/6/13 at 6:46am
post #6583 of 7827
Quote:
Originally Posted by Thomoe View Post

I have tried everything...... flashing 3A bios, mod AB 2.2.4... NV314.07 and i cant get the voltage over 1.21

How do i do this and what am i missing in this OC... This is my first atempt to OC my Lighting and i cant get pass 1250 mhz

Did you flash the bios from the first page of this thread?
Use AB 2.2.3 +100 (93) should be about 1.33 to 1.35 volts
The only way you will be able to read true voltage is with a DMMM, no monitoring program will read the increased voltage
post #6584 of 7827
Thanks for the info, just got the 680 power edition and flashed the bios. I have a question though, I don't really see any gains in performance, I'm still getting 40 fps dips in Borderlands 2, Crysis 3 still runs like dirt (which I expected) but I mean 680 lightning's in sli, shouldn't the performance be a little better? I only get like like 10-15 plus fps on maps in BF3, I kind of expected a lot more performance out of two lightning.
post #6585 of 7827
Quote:
Originally Posted by SenorPablo View Post

Thanks for the info, just got the 680 power edition and flashed the bios. I have a question though, I don't really see any gains in performance, I'm still getting 40 fps dips in Borderlands 2, Crysis 3 still runs like dirt (which I expected) but I mean 680 lightning's in sli, shouldn't the performance be a little better? I only get like like 10-15 plus fps on maps in BF3, I kind of expected a lot more performance out of two lightning.

thats weird, are you bottle necking on your CPU?
post #6586 of 7827
I thought I was, I have a 2500k, I overclocked it today to 4.4 ghz and it didn't really make a difference.
post #6587 of 7827
Quote:
Originally Posted by wiredg View Post

I'm confused. According to this nvidia page: "NVIDIA GPUs are designed to operate reliably up to their maximum specified operating temperature. This maximum temperature varies by GPU, but is generally in the 105C range (refer to the nvidia.com product page for individual GPU specifications)."

OK, so let's go to the related nvidia product page. It claims that the GTX 680 max temp is 98C.

So then, why does the company prefer to throttle this chip at 70C? Obviously, we want to avoid the max temp, but why shy away from it by such a wide margin? There ought to be some headroom between 70C and 98C. Why isn't 80C or 85C a perfectly safe limit during hard use like gaming?

Not 100% sure with this, but 105° is probably the thermal limit, going over this value has a high chance of damaging the gpu rapidly. Under 105° is considered safer since they are reasonably sure the gpu will not die in a matter of hours at that temp.
Although 105° is the max allowable temp, it isn't good for the gpu to be too hot, so they set a throttle point at 70° to help keep the card cooler, they are pretty sure that the majority of cards will live through their warranty period sticking at that value.
Between 70° & the 105° max won't kill the card, but it may be that nvidia's research has shown that a larger percentage of warranty claims will be made if the cards run at say 80° for extended periods.
Nvidia makes those calls based on the reference cards, the ln2 bios on the lightning not throttling was MSI's decision.

As far as overclocking goes, it has always been the cooler the better. 80°C may be called the safe temp for a gpu, that just means it won't die quickly, if it is considerably cooler it will overclock better.
    
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post #6588 of 7827
Quote:
Originally Posted by SenorPablo View Post

Thanks for the info, just got the 680 power edition and flashed the bios. I have a question though, I don't really see any gains in performance, I'm still getting 40 fps dips in Borderlands 2, Crysis 3 still runs like dirt (which I expected) but I mean 680 lightning's in sli, shouldn't the performance be a little better? I only get like like 10-15 plus fps on maps in BF3, I kind of expected a lot more performance out of two lightning.

40fps dips in BL2 are somehow related to big area of view (standing on top of a tower) it looks like a game optimization fault, not card fault.
C3 will get you 60fps (depending on settings) with 90+% GPU load

Only serious fail I've found was FarCry 3. Only 60-70% GPU utilization in sli with latest drivers and fps counter hovers above 30 in daylight.
That's again not VGA issue but driver issues, 2-3 iterations back it worked better for this game (90% util. both GPUs).
I was expecting drivers to get better, not worse, silly me.

What are your monitoring software readings under load?
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CPUMotherboardGraphicsRAM
3930K Asus RIVE 2x N680GTX Lightning 64GB G.Skill Ripjaws Z 1333 MHz 
Hard DriveHard DriveHard DriveOptical Drive
WD Black 2TB Vertex 4 512GB 2x Vertex 3 128GB | raid0 no optical drive, it's 2013 goddamnit! 
CoolingOSMonitorMonitor
Corsair H100 /w NF-F12 fans Win 8 Dell U3011 Dell u2412M 
KeyboardPowerCaseMouse
Corsair Vengeance K90 OCZ 1000W Gold HAF X Corsair M90 
Mouse PadAudioAudioAudio
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post #6589 of 7827
cant wait for 2.2.3 to get released and this thread will explode!
post #6590 of 7827
Honestly, in BL2 they're all over the place. I was suprised because a lot of the time GPU usage was between 30 and 80 percent mostly staying around 60 to 70 percent. I swear to god in game for Crysis 3 the gpu usage for each gpu only goes up to 60 percent. I wish I could force the GPU usage.
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