560ti SLI, second GPU not working

Hi Everyone,

I recently purchased another graphics card to see if I can SLI my 560ti. The problem is that the second card is only hovering around 10% usage when running MSI Kombustor. While the first GPU is showing 99-100% usage.

I tested both of the cards individually and they are working perfectly. Here are the cards:

GPU1: http://www.newegg.com/Product/Product.aspx?Item=N82E168...
GPU2: http://www.newegg.com/Product/Product.aspx?Item=N82E168...
Mobo: http://www.newegg.com/Product/Product.aspx?Item=N82E168...

The SLI bridge is plugged in and I have enabled 'Maximized 3D performance' in the NVIDIA Control Panel. I tried uninstalling and reinstalling the drives but still Kombustor is only showing 10% usage on the second card.

Any ideas?