I know this is old forum. But just wanted to say how it works. I know this old school stuff lol..
It still work. They have to be nvidia video cards,,,, Do make sure you have 780/980/750 or 8200a nforce driver and the newest nvidia video driver before doing this setup.
First step for hybrid SLI is to plug in the DVI or VGA cable to the onboard nvidia GPU video card from the motherboard and onto your monitor. Do not have any DVI or HDMI connections to your discrete PCIe video card. Go in the bios or reset the bios
1. Set hybrid SLI to : (auto/enable)
2. Set Screen Detection : (Disable)
3. Set Init Display First : (onboard)
4. Set IGPU Frame Buffer Control (enable)
5 Frame Buffer Size (64mb / 512mb)
5. Set OnBoard GPU (onboard)
6. Then save and exit to your bios.
Hybrid will turn on when windows loaded up and it will add a hardware driver.. A Hybrid SLI icon will appear and then set your setting from there. Here a user Gide in adobe pdf file. http://www.nvidia.com/content/hsli/configurator/assets/pdf/NVIDIA_Hybrid_SLI_User_Guide.pdf
It will run as any discrete PCIe video card from the nvidia model 8200 and up. It work on the 480 GTX and 480 GTX SLI. On the a 780a motherboard. It does save power in a weird way when you are in windows have to set your display power to saving power mode it is in the power saving from the control panel and sometime it does trun off your PCIe video card from not playing games or any 3D apps or in idle for 5 to whatever mins you set the power saving from too. It sure does turn your SLi or just PCIe card from to standby and when you doing heavy task and if you are using games or 3D apps it will boot up or trun on. But make sure you put your PhysX on your discrete PCIe video card from the nvidia control panel.
2nd step If you want just a extra video onboard card to support additional monitor.
1. Go to bios
2. Set Hybird SLI : (Disable)
3. OnBoard GPU : (Always Enable)
4. Set IGPU Frame Buffer Control (Enable)
5. Set Frame Buffer Size (64mb / 512mb)
6. Set Init Display First : (PCIEx)
7. Save and exit bios
8. Boot to windows let it load.
9. Shut down windows and plug all your monitors in
10. Boot to windows
11. Set the PhysX in nvidia control panel.
Now if you just want extra PhysX and not even used the card from the video onboard as a monitor but just use it for extra PhysX for your PCIe . Just repeat the 2nd step.Then go to nvidia control windows set PhysX from the onboard video from the nvidia control panel.. But do not plug anything from the onboard IGPU.
If you are running a AMD video card from PCIe then make sure that to have nvidia video driver.
Simple as it is..
Have funEdited by MasterCyclone3D - 9/13/13 at 5:39am