Crosshair V doesn't recognize my 2 Nvidia cards

[Retired]

Here is my system;

System:
27" LG HD Monitor
Windows7 Ultimate 64 Bit
Antec Dark Fleet DF-85 Case
ASUS Crosshair V Formula Motherboard
AMD Phenom II X6 1090 Processor @ 3.2 GHz
Creative Sound Blaster X-Fi Titanium Fatal1ty Champion Series PCI Express Sound Card
16.0 GB 1333mhz DDR3 Installed RAM
2 X Nvidia GTX590 EVGA Limited Edition
Logitech z5500 Speakers
Logitech G700 Mouse
Logitech G13 Game pad
Logitech G35 Headphones
Logitech G25 Steering Wheel
Logitech G940 Flight Control System
Razer BlackWidow Ultimate Mechanical Keyboard
Flexiglow's Cyber Snipa Gamepad
2 X Seagate 1.5 TB Hard drives
2X Western Digital 1 TB Black Edition Hard drives

Now the only Nvidia drivers I could find is 275.33. Even though I have both GTX590 properly installed, they both show up in the control panel, but SLI is not even displayed so I can turn it on. I do not understand.

Please help.

[xeromist]

Do you have the SLI bridge installed? If so you may want to try removing it and re-seating it. You also should be able to enable SLI without the bridge, just as a test. The performance may not be as good but it should work.

[Praz]

nVidia has not released drivers yet that allows SLI on the 990 boards. I'll ask if it is possible to upload drivers that do support SLI. Another option is to mod the inf file of the drivers you currently have.

[Retired]

Yes the SLI bridge is installed, I picked up the second GTX590 yesterday with the motherboard and powersupply. Since Praz's reply indicates a non-existant driver issue, if he is correct, then that could probably be the answer. I guess that having 2 GTX590's on the Crosshair V, is still fairly unique.

SLI is not even indicated within the control panel itself. Multi GPU is the only thing I can enable...

Whats interesting about all this is; when I went to the geforce Automatic Detection site, it recognized both cards in SLI. Its just not enabled in the control panel.

[Retired]

I don't mind altering the .ini files if someone can let me know what I should change. Perhaps the location of the .ini file and the line/lines I must change to enable the SLI function to actually work, would be most excellent.

[Andre]

275.33 doesnt support SLI on 990FX.

Could you try 270.77?

http://www.interupload.com/files/KJLBRLJ8/270.77_WinVista_Win7_32bit.zip_links

http://www.interupload.com/files/1WARPX0H/270.77_WinVista_Win7_64bit.zip_links

http://www.interupload.com/files/V9A9YA7A/270.77_WinXP_32bit.zip_links

[Andre]

Could you try NV beta driver 275.50?

http://us.download.nvidia.com/Windows/275.50/275.50-desktop-win7-winvista-32bit-english-beta.exe

http://us.download.nvidia.com/Windows/275.50/275.50-desktop-win7-winvista-64bit-english-beta.exe

http://us.download.nvidia.com/Windows/275.50/275.50-desktop-winxp-32bit-english-beta.exe


New in Release 275.50

•Enables SLI technology on SLI-certified motherboards with AMD chipsets: 990FX, 990X, and 970.
•Improves 3D Vision performance with Duke Nukem Forever with 3-way SLI and Quad SLI technology.

[Raja]

There is a link here also:

http://www.nvidia.co.uk/object/win7-winvista-64bit-275.50-beta-driver-uk.html

[Retired]

Solved... The beta WORKS!! Just can't wait for the Bulldozer cpu to come out...