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[Official] MSI GTX 680 Lightning Owners Club - Page 350

post #3491 of 7827
So I finally decided to pull the trigger on a GTX 680 Lightning. I've heard that Nvidia locked all the voltages on the newly manufactured cards from this series, but the BIOS update to unlock them is fairly simple correct? I see the directions are on the first page of this thread, so there shouldn't be any issues. Compared to a GTX 680 OC Signature I previously owned (was able to get the boost clock to about 1175 core/ 6500 mem), would the OC done on the Lighting provide a noticeable improvement in gaming and benchmarks?
post #3492 of 7827
yes in benchmarks..no in gameing but maby a couple of frames..also the card stays alot cooler
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post #3493 of 7827
Quote:
Originally Posted by BigJoeGrizzly View Post

So I finally decided to pull the trigger on a GTX 680 Lightning. I've heard that Nvidia locked all the voltages on the newly manufactured cards from this series, but the BIOS update to unlock them is fairly simple correct? I see the directions are on the first page of this thread, so there shouldn't be any issues. Compared to a GTX 680 OC Signature I previously owned (was able to get the boost clock to about 1175 core/ 6500 mem), would the OC done on the Lighting provide a noticeable improvement in gaming and benchmarks?

Depends what it hits. New ones aren't all hitting 1400mhz+ like the new ones when they were first released did and after they got voltage control. I don't think you'll see many doing ~1350mhz on the stock voltage anymore, due to the less-stringent binning process now in place. But yes on games where you really need the power (there was a 99% load when you were at 1175mhz core), then you'll see a small increase, but not enough to make a previously-30fps-game playable. Every little bit helps though I suppose. And yes the flashing is easy as can be. Post any question here that may arise redface.gif



So pretty much everyone has more experience with this than me, since I've had mine on the LN2 BIOS from day 1. I finally decided to check out the non-LN2. You don't have to reinstall drivers every time you switch from one to the other do you? I switched over for the first time, and even though the resolution is fine and the cards are recognized, the "Installing Device something-something" popped up when I rebooted and it was installing a Generic VGA driver. And the generic VGA driver installation failed. This mean I have to reinstall the drivers for the cards to be fully recognized and taking instructions from the drivers? Their recognized in Device Manager and by Afterburner.
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post #3494 of 7827
Hi Guys, I thought I would join the Lightning fan club. I previously had a EVGA reference 680 from day 1 of the 680 release and invested in a Lightning to go SLI for my 3 3D monitors. I was so impressed with the LTG, I sold the EVGA and bought another. My bridge was leaking on the second LTG, so I made my own link system with a few connecors smile.gif

Great thread guys and I have been a keen follower of this for quite a while.

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post #3495 of 7827
Ha. Turns out my awesome card boosts to 1202 on non-LN2. Coulda had the same speed at 1.175v this whole time doh.gif Another tid-bit, the inferior card boosts higher, to 1215mhz. Nice.

Better card only boosted to 1176mhz though during the GPU-Z render test, and then 1202mhz during 3dMark11? Both were full 99% loads...?
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post #3496 of 7827
Question regarding this card's overclocking potential. I know that the unlocked LN2 BIOS gives you the best chance at the highest clocks (since higher voltage is allowed), but would it be wise to use that BIOS if I plan on overclocking solely on air? For the max overclocks that you guys have experienced, how high did the fan have to be? How loud do these cards usually get compared to other 680s?
post #3497 of 7827
Quote:
Originally Posted by Arnoud87 View Post

No wonder if you put 1,37V on the core, a normal GTX 680 would get 100+ degrees on those voltages.
Anything 1250mhz or higher is crazy anyway, and memory bottleneck is the biggest problem, the cip needs 300+GBPS transfer for 10-15% more speed..... just thrown in the toilet by Nvidia's great 256 bit design.
I dont see any spectaculair difference from 1250mhz or 1450.
Im glad when GK110 comes, 680 really chokes itself. 192GBPS is nice for a 580, even than its the least u want.

haha i agree on that one but im not at 1.37v. Those clocks are stable at 1.22v and any more voltage just overheats like a mofo, for curiosity I've gone above that and the core is stable until about 68 degrees+ suggesting that it will be fine if I can manage to get the card properly cooled. Once i get a better cooling option I'll try pushing 1.37 but until then its 1380 / +450
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post #3498 of 7827
Quote:
Originally Posted by BigJoeGrizzly View Post

Question regarding this card's overclocking potential. I know that the unlocked LN2 BIOS gives you the best chance at the highest clocks (since higher voltage is allowed), but would it be wise to use that BIOS if I plan on overclocking solely on air? For the max overclocks that you guys have experienced, how high did the fan have to be? How loud do these cards usually get compared to other 680s?

LN2 BIOS is fine for air. I've used +93mv (highest Afterburner 2.2.3 overvolts without the hack) many times and the card stays in the 60C's with a decent custom fan curve.

And I think this card has a rather decent level of fan noise. It never bothered me to begin with though, because I can't hear it over the volume of the game or when I'm wearing headphones. You'll probably have to set the fan curve to be more aggressive than the default one if you plan on going near +93mv, or especially above, to keep the card nice and cool. But these things run so cool that it shouldn't be too loud at all.
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post #3499 of 7827
I changed my original msi Lightning for the EVGA SC Signature 2 because it was $150 cheaper and thinking it would be the same in performance, it is in certain way since this EVGA boosts to 1215 MHz stock, the only real difference is the temps and noise. the dual fan design of the EVGA helps to cool it down but isn't even close to the Twin Frozr IV
Now the Lightning dropped to $499 and I'm thinking if I should get it back, but is it really worth it for the average gamer? I understand that in order to achieve great frequencies you need to mess up with the BIOS and play voltages but, I dont really wana do that, what do you guys recommend to do? does flashing your BIOS void the warranty?
    
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post #3500 of 7827
Quote:
Originally Posted by dph314 View Post

LN2 BIOS is fine for air. I've used +93mv (highest Afterburner 2.2.3 overvolts without the hack) many times and the card stays in the 60C's with a decent custom fan curve.
And I think this card has a rather decent level of fan noise. It never bothered me to begin with though, because I can't hear it over the volume of the game or when I'm wearing headphones. You'll probably have to set the fan curve to be more aggressive than the default one if you plan on going near +93mv, or especially above, to keep the card nice and cool. But these things run so cool that it shouldn't be too loud at all.

Thanks for your help. One more question. When you max the voltage to +93mv, what is your actual voltage reading at full load? I know all Nvidia 680s do locked max voltage of 1.175v, but I'm not familiar with the Afterburner method of voltage readings and adjustments on these new cards.
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