You never thought it was possible until now, and its actually incredibly simple. I've used
Windows 7 64-bit as the operating system for testing. Procedure for other operating systems as well as other possible methods are found at the end of the guide (source).
Now capable with all drivers!
Step 1: Install your GPU drivers.
Step 2: Run the SLIpatch for your specific OS found
here.
Step 3: Run "InstallSLI.cmd", a success message should appear in the command prompt.
Step 4: Reboot. You will be brought to a boot menu that offers "[
Your OS]" or "[
Your OS] SLI enabled". Chose the SLI enabled one. If you'd like to
always boot into SLI enabled mode, navigate to System >> Properties >> Advanced >> Startup and Recovery >> Settings. Here, chose SLI Enabled from the drop down and make sure that the Time Delay option is unchecked.
Step 5: Voila! SLI!
Well there you have it. If you successfully perform the mod please PM ME and I will add you to the list of successful attempts!
Successful BlazingPC SLI hacks:- Kopi --- GA-X48-DQ6 / 2 x XFX 8800GT / Win7 64bit
- AUS.R34P3R --- Asus P5E / 2 x 8800GTX (XFX + PNY) / Win7 64bit
- Alexo35 --- Gigabyte EP45-UD3P / EVGA 9600GT x 2 / Win7 64bit
A list of other successful attempts as well as other methods for other operating systems, click
SOURCE.