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Second video card stopped detecting

post #1 of 5
Thread Starter 
I have 2 GTX 680s in SLI.

Today, after restarting my computer, it seems that my second video card is no longer being detected. I have no idea what caused this and I'm not sure how to diagnose if it's the video card of my motherboard without disassembling my loop.

Any ideas?
My System
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CPUMotherboardGraphicsGraphics
Intel Core i7-4820k ASUS Rampage IV black edition Zotac GTX 980 Amp! Edition Zotac GTX 980 Amp! Edition 
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Corsair Dominator Platinum 640GB WD Caviar Black 1 TB WD Caviar Green Samsung 840 Evo 
CoolingCoolingCoolingCooling
Alphacool NexXxoS Monsta 480 XSPC RX 360 Swiftech MCP655 x 2 EK GTX 980 
CoolingCoolingOSMonitor
EK GTX 980 EK Supremacy Windows 8.1 QNIX QX2710 
KeyboardPowerCaseMouse
Corsair K95 Seasonic Platinum 1000W CaseLabs STH10 Logitech G502 
AudioAudio
Mayflower O2 (AMP+DAC) Hifi-man HE-500 
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My System
(24 items)
 
  
CPUMotherboardGraphicsGraphics
Intel Core i7-4820k ASUS Rampage IV black edition Zotac GTX 980 Amp! Edition Zotac GTX 980 Amp! Edition 
RAMHard DriveHard DriveHard Drive
Corsair Dominator Platinum 640GB WD Caviar Black 1 TB WD Caviar Green Samsung 840 Evo 
CoolingCoolingCoolingCooling
Alphacool NexXxoS Monsta 480 XSPC RX 360 Swiftech MCP655 x 2 EK GTX 980 
CoolingCoolingOSMonitor
EK GTX 980 EK Supremacy Windows 8.1 QNIX QX2710 
KeyboardPowerCaseMouse
Corsair K95 Seasonic Platinum 1000W CaseLabs STH10 Logitech G502 
AudioAudio
Mayflower O2 (AMP+DAC) Hifi-man HE-500 
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post #2 of 5
Try plugging removing the SLI bridge and plugging the monitor into the 2nd card, see if it boots up like that.
post #3 of 5
Uninstall and reinstall drivers to see if it see's it. Double check you device manager to see if Windows notices it. If both of those fails, you will have to just remove the card in question and test it by itself.
post #4 of 5
If your motherboard has pci-e disable switches that would allow you to test the card on its own in the loop, otherwise all you can really do is swap around the pci-e power cables to rule out a PSU cable issue.
To test if it is the card or the board, you pretty much have to test the cards in the different pci-e slots.
    
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i7 990x/3930k/3770k/4770k GB x58a-OC/Asus RIVE/x79 gd65/z77 mpower/z77 MV... gtx480s/gtx580s/7970s/680s/Titan Hyper/PSC/BBSE/Hynix/Samsung 
Hard DriveOptical DriveCoolingOS
HDDs/SSDs DVD Air/water/phase/copper pot Windowz 
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samsung 2320 Razer Lycosa ax1200 carboard box 
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Trackball 
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CPUMotherboardGraphicsRAM
i7 990x/3930k/3770k/4770k GB x58a-OC/Asus RIVE/x79 gd65/z77 mpower/z77 MV... gtx480s/gtx580s/7970s/680s/Titan Hyper/PSC/BBSE/Hynix/Samsung 
Hard DriveOptical DriveCoolingOS
HDDs/SSDs DVD Air/water/phase/copper pot Windowz 
MonitorKeyboardPowerCase
samsung 2320 Razer Lycosa ax1200 carboard box 
Mouse
Trackball 
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post #5 of 5
Thread Starter 
Quote:
Originally Posted by kcuestag View Post

Try plugging removing the SLI bridge and plugging the monitor into the 2nd card, see if it boots up like that.

I did this and it didn't work; however, as soon as windows booted and plugged my monitor cable into my first card, I opened EVGA precision and it's detecting my second card again.

I have a feeling this is a motherboard issue...
My System
(24 items)
 
  
CPUMotherboardGraphicsGraphics
Intel Core i7-4820k ASUS Rampage IV black edition Zotac GTX 980 Amp! Edition Zotac GTX 980 Amp! Edition 
RAMHard DriveHard DriveHard Drive
Corsair Dominator Platinum 640GB WD Caviar Black 1 TB WD Caviar Green Samsung 840 Evo 
CoolingCoolingCoolingCooling
Alphacool NexXxoS Monsta 480 XSPC RX 360 Swiftech MCP655 x 2 EK GTX 980 
CoolingCoolingOSMonitor
EK GTX 980 EK Supremacy Windows 8.1 QNIX QX2710 
KeyboardPowerCaseMouse
Corsair K95 Seasonic Platinum 1000W CaseLabs STH10 Logitech G502 
AudioAudio
Mayflower O2 (AMP+DAC) Hifi-man HE-500 
  hide details  
Reply
My System
(24 items)
 
  
CPUMotherboardGraphicsGraphics
Intel Core i7-4820k ASUS Rampage IV black edition Zotac GTX 980 Amp! Edition Zotac GTX 980 Amp! Edition 
RAMHard DriveHard DriveHard Drive
Corsair Dominator Platinum 640GB WD Caviar Black 1 TB WD Caviar Green Samsung 840 Evo 
CoolingCoolingCoolingCooling
Alphacool NexXxoS Monsta 480 XSPC RX 360 Swiftech MCP655 x 2 EK GTX 980 
CoolingCoolingOSMonitor
EK GTX 980 EK Supremacy Windows 8.1 QNIX QX2710 
KeyboardPowerCaseMouse
Corsair K95 Seasonic Platinum 1000W CaseLabs STH10 Logitech G502 
AudioAudio
Mayflower O2 (AMP+DAC) Hifi-man HE-500 
  hide details  
Reply
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