omktav :
One last question
will gtx 650Ti work over my amd 7750 beause i want to upagrade
yes it will support your motherboard. Before installing the other nvidia gpu, do the following things:
First of all download Display Driver Uninstaller(Driver sweeper) from here:
http://www.guru3d.com/content_page/guru3d_driver_sweeper.html and extract it.
And download CCleaner from here: http://www.filehippo.com/download_ccleaner/ and install it.
Then follow the steps below:
1. Uninstall your graphics driver of your previous card through the control panel->Program and Features.
2. (Important)Restart and boot into safe mode.
3. Run Display Driver Uninstaller and unistall all gpu drivers in your pc.
4. Restart and boot to the regular desktop.
5. Run CCleaner and remove registries.
6. Shutdown the pc
7. Install new gpu in your motherboard.
8. Install the new driver
9. Restart