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[Official] NVIDIA GTX 980 Owner's Club - Page 278

post #2771 of 10534
Hmmm worth a shot... only gets worse biggrin.gif

The odd thing about it, the extreme Score seems to be normal.

http://www.3dmark.com/fs/2956777
Edited by Hilpi234 - 10/18/14 at 11:26pm
post #2772 of 10534
Quote:
Originally Posted by Hilpi234 View Post

Hmmm worth a shot... only gets worse biggrin.gif

The odd thing about it, the extreme Score seems to be normal.

http://www.3dmark.com/fs/2956777

I feel like OC'ing the memory is showing a certain pattern that it did on some AMD cards a few years ago. Meaning fps does down after OC'ing around 8000mhz but then jumps up rapidly if you continue to increase the memory clock past 8200mhz. Something to do with the memory and core being out of sync and then being ok.
    
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post #2773 of 10534
I think, its simply my system with Firestrike normal. I also do not deactivate firewall and enforce max CPU speed... this is still a gaming System biggrin.gif

Tomb Raider you get around 1 min fps more, every 150 MHZ Mem, at the same Coreclock.


Im far more amazed about the 500 w Power draw in Games, with 2 Cards @1500 and OC CPU, 55w while browsing the web biggrin.gif
Edited by Hilpi234 - 10/19/14 at 12:40am
post #2774 of 10534
Quote:
Originally Posted by StephenP85 View Post

See what happens if you set the GPU clocks separately instead of synchronized.You may be seeing less GPU usage on one card because its boost clock is ramping up higher than the other, and the lower boosted card is the bottleneck as it reaches 99-100% usage. For mine in SLI, my top card has to be clocked 30mhz less than the bottom one in order for them to stay in sync. Otherwise, the top card runs at a lower voltage and throttles. It's a bug or "feature," however you want to look at it. But the problem has been discussed on the Nvidia forums, and someone there suggested the solution of setting different offset clocks, and it works. For many, 30-40Mhz lower is the answer, while for others it's more like 10.

https://forums.geforce.com/default/topic/777448/geforce-900-series/-major-issue-sli-gtx-970-cards-one-card-runs-way-lower-voltage-than-the-other-driver-bug-/5/
Thanks. Do you know anyway that I could view the GPUs Voltage in the OSD?
post #2775 of 10534
Forgot to say, lowing the OC of the card solved the issue. I hope Nvidia can come up with a fix though.
post #2776 of 10534
Quote:
Originally Posted by MikeGR7 View Post

Your mobo isn't SLI capable unfortunately.
But no problem with primary + Physx card! It won't bottleneck at all.
The test i did was done with the Physx card at PCIE 4X as well!
In games supporting it you'll see hell of a boost vs single gpu only.
I hope i helped.smile.gif

@MikeGR7, can you try please if you put the Physx Card to PCIE X16 (dual X8 with your main GPU) if there would be more improvement. Thanks.
post #2777 of 10534
Quote:
Originally Posted by Hilpi234 View Post

It seems, if the asic scores are close and the Bios the same, the SLI Sync works quite well.












The bottom card with higher Asic is master, it uses only 1.231 @ Max Voltage(Top 1.256v), but now they clock completly in sync, with the difference of one Voltage Step.

Does the NVIDIA control panel auto set the card with highest ASIC as master?? My bottom card also has a higher ASIC and it auto set to master. Little confusing with some programs as I'm not sure which card is which (EVGA Precision goes off of PCIe slots, NVIDIA Inspector goes off master/slave for 1st/2nd card), and I'm also conscious of connecting my monitor to the slave card (top card), but if I connect it to my bottom card, then I pretty much can't see a thing outside of Windows. Does any of this affect performance?
    
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post #2778 of 10534
Your Fire Strike normal is good.
Mine are 7001 and 13753.
But my OC is at 1548/2128.
post #2779 of 10534
The Card you choose in AB is the Master Card. I guess it works only so well, because both cards use the same voltage Table, 1.206v without increase.


My monitor is, also is connected to the slave Card.

I saw the same behavior, on my old 780ti card wich i sold to a friend, flashed a Tuned Stock Bios to my Card and his. (asic 78 and 59) Stock Voltage 1.162 and 1.20.

After Sli was enabled the 78 Asic 1.125v and the 59 Asic 1.212v. The driver did apply one boost bit, to the bad card and throttled mine by 3 bits. to match them.
Edited by Hilpi234 - 10/19/14 at 5:19am
post #2780 of 10534
Quote:
Originally Posted by thuNXa View Post

Your Fire Strike normal is good.
Mine are 7001 and 13753.
But my OC is at 1548/2128.
OMG soo much hype, just shot it on my 24/ just for you guys smile.gif
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