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[Official] NVIDIA GTX 980 Owner's Club - Page 280

post #2791 of 10547
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/

Thank for your info, helped me a lot : my cards are ASIC wise very close, both 79%,but anyhow the top card has to be clocked 30MHz lower like by you.
After that they rund 1520 @SLI without any hassle. Must be a driver bug.
post #2792 of 10547
Quote:
Originally Posted by Hilpi234 View Post





This is the master Card, you can verify it, by clicking the info Button.





I want my block, the Ram on this card, is only held back, by a little bit of addional Power.

The fan uses 10% of the TDP @ 100%


Has anyone tried, enforcing a p-state to a card, i always get a black screen, after hitting enter, is this because of Falcon?

Interesting. I just checked this, and my bottom card is the master. It's also the lower ASIC.
post #2793 of 10547
For what it's worth, here is the most I could push out of my MSI Gaming 4G 980 in Afterburner

Voltage: +87
Power limit: 122
Core Clock: +193
Memory Clock: +395

This puts it at 1383 GPU clock with 1484 boost in GPU-Z.

FYI the ASIC is 74.1 on this card
post #2794 of 10547
Quote:
Originally Posted by pbvider View Post

Power limit mod?Where can I find it?

Step 8
http://kingpincooling.com/forum/showthread.php?t=2886
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post #2795 of 10547
Is there a boost disabled BIOS for the G1 Gaming? I tried searching the OP and the thread but no results frown.gif
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post #2796 of 10547
There is not going to be a custom bios for gtx 980. We are getting foolet tongue.gif
post #2797 of 10547
I just flashed my reference card with the SC ACX bios - definite Boosting to 1440MHz now with no OC

Still stable at 1600/3900, but the TDP has reduced by about 10%. Going to do a fresh firestrike run now.
post #2798 of 10547
So to confirm by flashing to the acc bios for reference the top is lower with the same clock ?
post #2799 of 10547
Ive seen a lot of people with idle temps in the region of 40C yet both my 980 reference cards are idling at around 28C/32C ambient is 21C/22C not a bad thing but 40C does seem high!
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post #2800 of 10547
Hi Guys,

Is this power limit and or voltage limit fluctuating like this normal?

uhnOnch.jpg

I have it back at stock for now. Poor overclocker. EVGA SC ACX 2.0 the ASIC score is only 67.1 thumbsdownsmileyanim.gif

The image is from running Arma 3. Getting stuttering. Not so pronounced when using a GSync monitor, but noticeable.

Cheers

Rob
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