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[Official] NVIDIA GTX 780 Ti Owner's Club - Page 808

post #8071 of 16504
Is anyone in this thread using a Corsair AX860 to power 780ti's in SLI? I already have one, and I dont know if 860W is enough for 2 GPU's and a CPU, with room to overclock. Any insight? Thanks in advance.
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post #8072 of 16504
Quote:
Originally Posted by Krulani View Post

Is anyone in this thread using a Corsair AX860 to power 780ti's in SLI? I already have one, and I dont know if 860W is enough for 2 GPU's and a CPU, with room to overclock. Any insight? Thanks in advance.
that depends on your what cpu you have you should fill out your rig for your Sig so we can see what you have
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post #8073 of 16504
Quote:
Originally Posted by Krulani View Post

Is anyone in this thread using a Corsair AX860 to power 780ti's in SLI? I already have one, and I dont know if 860W is enough for 2 GPU's and a CPU, with room to overclock. Any insight? Thanks in advance.

With 2 OC'd 780 Ti cards you'd definitely be pushing the upper limits of an 860W PSU. I'd probably go for a 1000W to be a little safer.
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post #8074 of 16504
Quote:
Originally Posted by BillyMays14 View Post

Hi,

I am running 2 reference 780 Ti's in SLI. I typically run them mildly overclocked at 106% PT, 95C Temp. 1059 Mhz Base, 1111 MHz Boost. In most games, they typically boost to a consistent and stable 1188 MHz. However, I am having problems with them boosting in some games. 3 games I'm seeing issues in are Borderlands 2, Thief, and Assassin's Creed IV. When I play those games the GPU's stay at the base 876 MHz regardless of whether or not I've overclocked them. This results in those games running at 60 fps with no activity but constantly dropping to the 40's whenever enemies or complicated environments show up. The gpu does not boost even when the FPS drops. I know temperatures and Power Target are not limiting factors either as they stay between 60-70 C and under 80% TDP.

I have tried everything, from running stock everything, removing Precision X, running in single card format, uninstalling and reinstalling drivers, setting them to maximum performance mode in Nvidia Control Panel, toggling v-sync, etc. The only thing that seems to work is manually enabling k-boost and removing it when I'm done playing. Once again, this only affects certain games. Please let me know what I can do to fix this so that they can use the power they have and ensure I run a consistent, smooth 60 FPS. I'll list my system specs below if that helps.

-2560x1440 monitor for games, 1920x1080 monitor on side for videos while playing games
-4930k, stock clocks
-RIVEBE
-16 GB Ram running stock clocks
-2x Reference 780 Ti's running in SLI
-AX 1200
-500 GB Samsung Evo
-2 TB 7200 RPM Seagate Barracuda

Any help at all would be appreciated, thank you very much!

I wouldn't be so sure about the power target to be honest. At the very least, flash skyn3t's relevant BIOS and see if that helps the situation.
post #8075 of 16504
Quote:
Originally Posted by geggeg View Post

I wouldn't be so sure about the power target to be honest. At the very least, flash skyn3t's relevant BIOS and see if that helps the situation.

Completely unrelated.. but I'm super jelly of your system. It's like the slightly more talented big brother of my system.
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post #8076 of 16504
lol I just saw your rig and it does seem like our rigs are related biggrin.gif
post #8077 of 16504
Quote:
Originally Posted by geggeg View Post

I wouldn't be so sure about the power target to be honest. At the very least, flash skyn3t's relevant BIOS and see if that helps the situation.

Sorry, forgot to mention that I tried that as well and it didn't really help. Not sure why it's only affected in certain games too. Thank you for the suggestion though.
Quote:
Originally Posted by Bradum View Post

Completely unrelated.. but I'm super jelly of your system. It's like the slightly more talented big brother of my system.

Thanks! Your build is pretty sick, how's the Kingpin treating you?
post #8078 of 16504
Quote:
Originally Posted by BillyMays14 View Post

Sorry, forgot to mention that I tried that as well and it didn't really help. Not sure why it's only affected in certain games too. Thank you for the suggestion though.
Thanks! Your build is pretty sick, how's the Kingpin treating you?

I actually don't have it yet. Wasn't able to find it available until yesterday. Shipped out today. I'm also adding a custom liquid loop in the next month. Just working out what parts I'm going to get and how I'm going to set it up.

But yes, I'm quite proud of my system. Really wish I had dat Dominator Platinum though.
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post #8079 of 16504
Quote:
Originally Posted by BillyMays14 View Post

Sorry, forgot to mention that I tried that as well and it didn't really help. Not sure why it's only affected in certain games too. Thank you for the suggestion though.

Tried overvolting to 1.212V while having raised the power limit to max? I honestly can't think of anything else that can help out.
post #8080 of 16504
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