GTX-770M Graphics Cards not detected in Device Manager

Question

Hi; My AW-18 does not properly detect my GTX-770M cards (x2), and display them in Device Manager. All I see is that under Other Devices there are two Unknown Devices listed, one of which I already know about (not related). No GTX cards appear under Display Adapters. Also, when I try to install GeForce Experience, I get an error saying I don't have the right graphics cards for that program. It used to run fine until today (15Dec2014).  This PC has one hard drive wipe and system re-install in it's history. It's possible this item has been like this since that event. The Hardware Id info on this mystery items is as follows: ACPI\VEN_SMO&DEV_8810ACPI\SMO8810*SMO8810 So I guess I have two questions; 1) Can you tell me what that mystery device is? 2) Why can't I see my graphics cards in the device manager, despite all the usual actions like scanning for new hardware, looking for drivers, etc. Thank You, Graham

humphreg · Accepted Answer

Also Note that I had previously run the Dell Troubleshooter and it detected no problems.

I found a solution myself.

I accessed the BIOS settings via F2 key during boot, and the only thing I could see that I could try was to restore Default settings, so I did that. My PC then booted up normally but for low-res. Device Manager now showed the two graphics cards, so I ran the installer for the latest drivers from GeForce and the PC is now running perfectly once again.

Locked Topics – Laptops General

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