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780 Classified SLI problem

post #1 of 5
Thread Starter 
Hi, when using SLI during a game, the second GPU will go from 99% usage like the 1st to a 30-70% usage, it usually happens after 30minutes and it makes my FPS horrible, why is this happening and how do i fix it frown.gif
980 TI SLI 3770K
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980 TI SLI 3770K
(23 items)
 
  
CPUMotherboardGraphicsGraphics
i7 3770k @ 4.5ghz Z77X UD3H MSI GTX 980 TI Gaming 6G MSI GTX 980 TI Gaming 6G 
RAMHard DriveHard DriveHard Drive
8gb Trident X 2400MHZ Samsung 840 PRO 128GB WD Blue Crucial M4 256Gb 
Hard DriveCoolingOSMonitor
Seagate 3TB Noctua NH-D14 Windows 8.1 64bit VG248QE 
MonitorMonitorKeyboardPower
QNIX QX2710 Vizio M492i Ducky Shine 3 EVGA 1300W G2 
CaseMouseMouse PadAudio
Corsair Carbide Air 540 Mionix Avior Puretrak Talent RX 467V/Titanium HD 
AudioOtherOther
Schiit Magni HE-400 K7XX 
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post #2 of 5
What temps are your cards hitting?
post #3 of 5
Thread Starter 
60-65c bottom card, 75-80c top card.


it seems that went the bottom card at any moment goes over 65c i start to get blue artifacts
980 TI SLI 3770K
(23 items)
 
  
CPUMotherboardGraphicsGraphics
i7 3770k @ 4.5ghz Z77X UD3H MSI GTX 980 TI Gaming 6G MSI GTX 980 TI Gaming 6G 
RAMHard DriveHard DriveHard Drive
8gb Trident X 2400MHZ Samsung 840 PRO 128GB WD Blue Crucial M4 256Gb 
Hard DriveCoolingOSMonitor
Seagate 3TB Noctua NH-D14 Windows 8.1 64bit VG248QE 
MonitorMonitorKeyboardPower
QNIX QX2710 Vizio M492i Ducky Shine 3 EVGA 1300W G2 
CaseMouseMouse PadAudio
Corsair Carbide Air 540 Mionix Avior Puretrak Talent RX 467V/Titanium HD 
AudioOtherOther
Schiit Magni HE-400 K7XX 
  hide details  
Reply
980 TI SLI 3770K
(23 items)
 
  
CPUMotherboardGraphicsGraphics
i7 3770k @ 4.5ghz Z77X UD3H MSI GTX 980 TI Gaming 6G MSI GTX 980 TI Gaming 6G 
RAMHard DriveHard DriveHard Drive
8gb Trident X 2400MHZ Samsung 840 PRO 128GB WD Blue Crucial M4 256Gb 
Hard DriveCoolingOSMonitor
Seagate 3TB Noctua NH-D14 Windows 8.1 64bit VG248QE 
MonitorMonitorKeyboardPower
QNIX QX2710 Vizio M492i Ducky Shine 3 EVGA 1300W G2 
CaseMouseMouse PadAudio
Corsair Carbide Air 540 Mionix Avior Puretrak Talent RX 467V/Titanium HD 
AudioOtherOther
Schiit Magni HE-400 K7XX 
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Reply
post #4 of 5
At 80C you are hitting GPU boost 2.0's limit. I'd suggest making a more aggressive fan curve and maybe consider updating your fans.

I also have the Carbide 540. It's a great case but the stock fans are crap. Replace the front fans with some quality 120MM fans. 3 120MM fans is quite a bit more airflow than the stock ones. When I was benching, I actually had to take the window off. That really helped with the temps, too. Obviously not a permanent solution, but it'll definitely help.
post #5 of 5
Thread Starter 
hmm it seems i artifact a little bit even at 60, but i get more the higher the temps get. the card i ordered from newegg is doing this i believe, the one i bought from evga isnt.

also i get to 78c or so during crysis 3 at 80% fan speed.would new front fans make a big difference? what would you recommend



also i fixed the gpu usage issue, i think.
980 TI SLI 3770K
(23 items)
 
  
CPUMotherboardGraphicsGraphics
i7 3770k @ 4.5ghz Z77X UD3H MSI GTX 980 TI Gaming 6G MSI GTX 980 TI Gaming 6G 
RAMHard DriveHard DriveHard Drive
8gb Trident X 2400MHZ Samsung 840 PRO 128GB WD Blue Crucial M4 256Gb 
Hard DriveCoolingOSMonitor
Seagate 3TB Noctua NH-D14 Windows 8.1 64bit VG248QE 
MonitorMonitorKeyboardPower
QNIX QX2710 Vizio M492i Ducky Shine 3 EVGA 1300W G2 
CaseMouseMouse PadAudio
Corsair Carbide Air 540 Mionix Avior Puretrak Talent RX 467V/Titanium HD 
AudioOtherOther
Schiit Magni HE-400 K7XX 
  hide details  
Reply
980 TI SLI 3770K
(23 items)
 
  
CPUMotherboardGraphicsGraphics
i7 3770k @ 4.5ghz Z77X UD3H MSI GTX 980 TI Gaming 6G MSI GTX 980 TI Gaming 6G 
RAMHard DriveHard DriveHard Drive
8gb Trident X 2400MHZ Samsung 840 PRO 128GB WD Blue Crucial M4 256Gb 
Hard DriveCoolingOSMonitor
Seagate 3TB Noctua NH-D14 Windows 8.1 64bit VG248QE 
MonitorMonitorKeyboardPower
QNIX QX2710 Vizio M492i Ducky Shine 3 EVGA 1300W G2 
CaseMouseMouse PadAudio
Corsair Carbide Air 540 Mionix Avior Puretrak Talent RX 467V/Titanium HD 
AudioOtherOther
Schiit Magni HE-400 K7XX 
  hide details  
Reply
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