Computer won't detect 2nd Graphics Card

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sennettas

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Jan 15, 2014
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Hello everyone!

I recently built a new computer and after 2 weeks decided to get another graphics card and run SLI. I am running into a problem because my computer will not detect the other graphics card. I know that both of my motherboards PCIe Slots are working because I tested the graphics cards in both and they worked. I also did the same with both graphics cards and they worked as well. I've spent the most part of two days trying to get this to work.

PC:
Motherboard: GA-Z87X-HD3 http://ca.gigabyte.com/products/product-page.aspx?pid=4764#ov

Graphics Cards: 2 Asus GeForce GTX 660 DirectCU OC http://www.asus.com/Graphics_Cards/GTX660DC2O2GD5/

Power Supply: Antec 850w High Current Pro http://store.antec.com/Product/HighCurrentPro/hcp-850/0-761345-23980-6.aspx

RAM: 8GB RipJawX http://gskill.com/en/product/f3-12800cl9d-8gbxl

Processor: Intel Core i5-3570K http://ark.intel.com/products/65520

Pictures of the PC: Picture 1 http://i.imgur.com/u0MwlSJ.jpg?1 Picture 2 http://i.imgur.com/6SGKZkP.jpg?1

Sorry about the quality my phone's a potato I guess.

Anything will help! I hope to get this problem solved so I can finally enjoy 3 monitor gaming!
 
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sennettas

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Jan 15, 2014
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10,510


Yes I have added the SLI bridge. You can see it in both pictures of the PC.

I have also Disabled the Motherboards onboard graphics in BIOS, deleted all Nvida drivers and reinstalled them.
 
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scoobydenon

scoobydenon

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Feb 27, 2011
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Did you install the latest drivers for the second card? Bring up your device manager and see what it says. Start, Control Panel, Device Manager, display adapters. It will show nothing if nothing is wrong. Let me know
 
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sennettas

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Jan 15, 2014
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I have the latest drivers from Nvidia (GeForce 332.21) and it is still only showing 1 of my Nvidia Geforce GTX 660s
 
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scoobydenon

scoobydenon

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Feb 27, 2011
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Ok it could be a driver problem. Try this, - Install Driver Fusion, Then uninstall NVidia drivers. It will tell you to restart, DON"T, Run driver fusion and clean the drivers, then restart. Now install the latest drivers again, if this does not work, it is most likely a PSU issue. Let me know...
 
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sennettas

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Jan 15, 2014
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10,510


Still only detecting one graphics card. So you think it could be my PSU? Not sure if it has anything to do with it but the fans on the Card are both working.
 
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