So I actually need some help (1080ti SLI Performance problems)

[Mastermike32]

So, I recently bought two 1080ti's and put them into my rig in SLI configuration with the EVGA HB Bridge, my setup is as follows:

i7-4790K
Corsair H100i
Asrock z97 Extreme 6
16gb DDr3
750w Gold Certified EVGA PSU
ROG Swift 1440p 165hz Gsync
250gb Samsung 840 SSD
1TB Samsung 850 pro SSD
1TB WD Black HDD
NZXT Hue (LED lights thing)

I've been reading around these forums for days trying to find a solution before I made this post, and simply put nothings working, I'm getting below 60 fps in several games, and my GPU utilization almost always stays below 75% (usually hovers around 65) While my CPU gets into the 90's

Just to give some background I in the past two days have removed and reinstalled graphics drivers with DDU, and after that I did a full windows reinstall.

Now I had heard about the 4790k bottlenecking 1080ti's in 1080p but could the same thing be happening here? Even though I'm playing in 1440p?

Could this be because my motherboard is running them in 8x / 8x? Is my 750w PSU not enough? I do have LED's and 2 SSD's to go along with my HDD....Also I did not notice any noticeable changes when enabling / disabling G-Sync I know people were saying that that could cause issues with Pascal SLI. Honestly I just don't know where to go from here, I was getting better performance with my 980ti classified. Could one or both of my cards be bad? (Also should I overclock my CPU?)

 

[dylanhill91]

So, I recently bought two 1080ti's and put them into my rig in SLI configuration with the EVGA HB Bridge, my setup is as follows:

i7-4790K
Corsair H100i
Asrock z97 Extreme 6
16gb DDr3
750w Gold Certified EVGA PSU
ROG Swift 1440p 165hz Gsync
250gb Samsung 840 SSD
1TB Samsung 850 pro SSD
1TB WD Black HDD
NZXT Hue (LED lights thing)

I've been reading around these forums for days trying to find a solution before I made this post, and simply put nothings working, I'm getting below 60 fps in several games, and my GPU utilization almost always stays below 75% (usually hovers around 65) While my CPU gets into the 90's

Just to give some background I in the past two days have removed and reinstalled graphics drivers with DDU, and after that I did a full windows reinstall.

Now I had heard about the 4790k bottlenecking 1080ti's in 1080p but could the same thing be happening here? Even though I'm playing in 1440p?

Could this be because my motherboard is running them in 8x / 8x? Is my 750w PSU not enough? I do have LED's and 2 SSD's to go along with my HDD....Also I did not notice any noticeable changes when enabling / disabling G-Sync I know people were saying that that could cause issues with Pascal SLI. Honestly I just don't know where to go from here, I was getting better performance with my 980ti classified. Could one or both of my cards be bad? (Also should I overclock my CPU?)

HELLO FELLOW SLI MISTAKE MAKER. TWO 970s CHECKING IN.

CHECK NVIDIA CONTROL PANEL AND ENSURE THAT SLI IS ENABLED. NOW MAKE SURE THAT YOUR MAIN DISPLAY IS ALSO THE FOCUS DISPLAY (UNLESS YOU DON'T HAVE MULTIPLE MONITORS). I KNOW I KNOW, YOU ALREADY DID THIS, BUT FUCKING SHIT TURNS ITSELF OFF WITH NO EXPLANATION SOMETIMES.

NOW HEAD ON OVER TO THE LAGGY POS THAT IS "Manage 3D settings"

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IGNORE ALL OF MY SETTINGS. GEFORCE EXPERIENCE PUSHES DSR UPSCALING IN A DESPERATE ATTEMPT TO DRAIN ME OF MY VRAM. GF EXPERIENCE MUST NOT KNOW THAT (3.5+.5)*2 IS STILL LESS THAN 4. GF EXPERIENCE MUST SECRETLY DESPISE ME. BESIDES POINT.

TO PARAPHRASE NVIDIA:
"Optimal/Adaptive power is a bit fucky with SLI performance because.. It's messy and you SLIers are the minority we're trying to phase out."

TO ACHIEVE MAXIMUM PERFORMANCE (and sacrifice all potential power savings), OR TO ST-ST-STUTTER.

FUCK THAT QUESTION. SET INDIVIDUAL PROGRAMS YOU'RE HAVING TROUBLE WITH TO PREFER (read: DEMAND) MAXIMUM PERFORMANCE.

RESOLVED. NEVER BUY SLI AGAIN (FOR GAMING). BENCHMARKS ARE SEDUCTIVE SIRENS HOPING TO FUCK YOU ON THE ROCKS.