Thanks for the reply. So I downloaded the package, how do I apply it? I install drivers and sli patch and then what do I do with the modded driver pack? Do I just extract all files in desktop and double click the "Install" file in the folder?
I installed the drivers, pressed install in the modded package folder and a command prompt window quickly opened and closed. I installed SLI Patch,rebooted.
When I play games in SLI, my system crashes after a few minutes

It does not crash if I play with just one card. It doesn't crash even if I put it 8 hours in prime 95 and kombustor running at the same time with just 1 card, but crashes with SLI so I don't think it's a matter of the CPU

Please help me fix it!
I have the cards at stock speeds and it's weird. I had the same problem with previous drivers 275.33 or smthing as well(i had not installed any modded package with those just the normal drivers and sli patch). The weird thing is that SLI has worked fine on my system for quite some time and suddendly I don't know what cause it being broken. Please help!