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@ 2008/08/13Well im now running my GTX 280 as my main card and my 9800GT is doing the PhysX and im on a Crossfire motherboard too.
I put both GPU's into the machine and uninstalled the old drivers. Then installed the latest 177.83 (PhysX support included) and the driver does for both cards smile.gif
Then of course u have to go into Vista display settings or XP display settings (not the nvidia panel) and click on the drop down box where u see ur main card. When the box drops down u should see ur other card too. Set both cards to the same resolution then click on 'extend to desktop'box and check that then 'apply'
You should now be able to see the 'Select GPU for Geforce PhysX' option box in the settings in the PhysX control panel. Keep ur best card for main graphics and use ur cheaper one for the PhysX.
I put both GPU's into the machine and uninstalled the old drivers. Then installed the latest 177.83 (PhysX support included) and the driver does for both cards smile.gif
Then of course u have to go into Vista display settings or XP display settings (not the nvidia panel) and click on the drop down box where u see ur main card. When the box drops down u should see ur other card too. Set both cards to the same resolution then click on 'extend to desktop'box and check that then 'apply'
You should now be able to see the 'Select GPU for Geforce PhysX' option box in the settings in the PhysX control panel. Keep ur best card for main graphics and use ur cheaper one for the PhysX.
