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*OFFICIAL*GTX 295 Thread! - Page 73

post #721 of 799
I am in a little dilemma. I have a watercooled Dual PCB GTX295 running great. Decided to add another, Muffed up and got a single PCB version. Now I can use it for Seti@home (like folding@home), but I can't enable quad-SLI in the Nvidia Control panel, is it just not going to work? Its not using it, when I ran 3dmark vantage, only the two main GPU's were doing work according to EVGA Precision.

I tried it with/without the bridge, no luck. Any suggestions? Or just sell it and get a dual PCB version?
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post #722 of 799
Should work...did you uninstall the driver and reinstall?
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post #723 of 799
need a EVGA gtx295 backplate!

Does anyone have a spare laying around?
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post #724 of 799
Quote:
Originally Posted by Q56_Monster View Post
Should work...did you uninstall the driver and reinstall?
I'll try that
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post #725 of 799
Quote:
Originally Posted by Q56_Monster View Post
Should work...did you uninstall the driver and reinstall?
OK, diddn't work.... Still the same thing. Device manager shows all 4 GPU's, but no option to quad-SLI.

I even turned off the SATA III option to ensure I'm running the full 8x on both PCI-e lanes.
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post #726 of 799
What driver are you using? Try 191.07. Also, try switching up the slots. If you're running 1st and 2nd pcie slots, try 1st & 3rd, and vice versa.
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post #727 of 799
Quote:
Originally Posted by Q56_Monster View Post
What driver are you using? Try 191.07. Also, try switching up the slots. If you're running 1st and 2nd pcie slots, try 1st & 3rd, and vice versa.
I actually reverted to 191.01 today because it supposedly crunches numbers faster for seti@home. I even did the drivercleaner thing with safemode to make sure it did a complete removal.

I have only two slots of PCI-express
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post #728 of 799
ok. uninstall the drivers, switch the cards between your 2 slots, then reinstall drivers. go into control panel to enable quad-sli.

dual-pcb and single pcb can be mixed.....It is supposed to work.
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post #729 of 799
Quote:
Originally Posted by Q56_Monster View Post
ok. uninstall the drivers, switch the cards between your 2 slots, then reinstall drivers. go into control panel to enable quad-sli.

dual-pcb and single pcb can be mixed.....It is supposed to work.
Well, after looking at it, even though the mobo says it has "SLI" support, it doesn't say under specifications that it supports quad-sli (where as the "pro" versions specify quad-sli support). I might just have to get another mobo. Thanks for your help

The 4x GPU's are recognized and available in windows, I can even crunch numbers with 3/4 GPU's (that's a nvidia/boinc issue).
http://www.asus.com/product.aspx?P_ID=9i872VNaAILRp8bS

Unless I misread the specifications... Frustrating because it states on the box that it has "SLI/Crossfire support"
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post #730 of 799
Yes, Steadly, I should have looked at that first. Your mobo supports quad crossfire, not quad SLI. So if you had 2 5970's, you'd be cooking. You could get an evga classified mobo, as it supports both ATI crossfire and Nvidia SLI.
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