DX11 Not Possible

[Ice]

Windows 7 - 64bit
Geforce GT7950
Core Duo E6600
2GB RAM

DXDIAG = DX11 all installed fine.
Latest video drivers

DX11 version available from menu but clicking it just returns to desktop. No error, no crash, no nothing.

 

[shinkicker]

It was my understanding that DX11 would only run on Quadcore machines.

I'm in your boat, too - 3.0Ghz E8400 duocore, 64bit Vista with 4GB ram.

I cannot run Civ5 in DX11, it won't let me.

 

[The_J]

It was my understanding that DX11 would only run on Quadcore machines.

No, DX11 runs on DX11 machines = Win7 + DX11 graphics card, processor doesn't matter.

And that's the problem here: The Geforce GT 7950 is a DirectX9 card, and is not capable of DX10 or 11.
That should normally not lead to such a strange behaviour, but at the end it does not really matter here.

Moderator Action: Moved to tech support.

 

[Beef Hammer]

beat me to it, 7 series nvidia cards can only do dx 9, not 10 or 11, i got an 8800gt which is dx 10 but not dx 11, which doesn't help since civ V is dx 9 or 11... lol?

 

[tokala]

@shinkicker, you probably have the same problem I had, Steam running in Vista compatibility mode. Deselect that and you get the DX10/11 option

DX10/11 mode works with DX10 or DX11 cards in Vista or Win7.