Nvidia Geforce Experience can't detect my GPU

RayLe

Honorable
Sep 11, 2013
8
0
10,510
I just installed GTX 780 Ti to my Dell Precision T5600 Workstation. I used Geforce Experience to update driver for it but it couldn't detect my GPU. Then I use "Auto-Detect Your GPU" on Nvidia's website and it couldn't detect GPU as well. Therefore I had to update it manually.

After installing the driver manually, Nvidia still can't detect my GPU. Do you have any ideas?

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RayLe

Honorable
Sep 11, 2013
8
0
10,510


I did have a Nvidia Quadro 2000 in the PC before. I didn't delete the old drivers before installing the new one, is that a big problem? How to completely uninstall the old driver?