Need Help With my SLI

[SabakuNoTaira]

I custom built my computer a couple months ago. I got a NFORCE 680i LT SLI mobo with Windows XP OS. I bought two NVIDIA GeForce 8600 GT 256 graphics cards. I set up the SLI in the computer and downloaded the newer drivers.

The problem is that I feel like I'm not getting the effect of both of my graphics cards. I don't know how to check to see if the SLI is working correctly, but when I ran my 3DMark06 System Info it only shows one of my Graphics Cards.

This is what the System Info says:

Display Device 1/1
NVIDIA GeForce 8600 GT Driver 6.14.11.6921

Description NVIDIA GeForce 8600 GT
Manufacturer NVIDIA
Total Local Video Memory 256 MB
Total Local Texture Memory 529 MB
AGP Aperture Size 0 B
Driver File nv4_disp.dll
Driver Version 6.14.11.6921
Driver Date 12-5-2007
Driver WHQL Certified true
Max Texture Width 8192 px
Max Texture Height 8192 px
Max User Clipping Planes 8
Max Active Hardware Lights 8
Max Texture Blending Stages 8
Fixed Function Textures In Single Pass 8
Vertex Shader Version 3.0
Pixel Shader Version 3.0
Max Vertex Blend Matrices 0
Max Texture Coordinates 8
VGA Memory Clock 0.0 Hz
VGA Core Clock 0.0 Hz
Max VGA Memory Clock 0.0 Hz
Max VGA Core Clock 0.0 Hz
PCI
Name NVIDIA GeForce 8600 GT
Vendor ID 0x10de
Device ID 0x0402
SubSystem ID 0xc7503842
Revision ID 0x00a1

--------------------------------------------------------------------------------

Bus
Type PCI Express
Revision 1.0
Enabled true
Rate 16
Sideband Addressing Not Supported
Fast Write Not Supported

Can anyone tell me how to check if my SLI is actually working and/or how to fix it if it isn't.

Thanks in Advance,
Taira

 

[Baez]

Have you checked with RivaTuner, ATITool or PCWizard yet? Use one of those tools and see if both show up. You can also run the dxdiag command in Windows Run.