3d tests in 64bit?

[cpbencher]

I recently built a new system with 64bit. The video card I have is PNY 9600GSO 768MB. Both Burn in test and Performance Test 32 bit versions run all the 2d and 3d tests fine. However if i try to use the 64 bit version of Performance Test or Burn in tests the 3d tests fail. "...computer only has a reduced-functionality reference device.." passmark, "Error initializing Directx device" BurnInTest.

Any idea as to why the 3d tests don't run on 64bit? I have the latest directx 9.0c installed and latest 64bit force ware drivers. Does the video card have to support some kind of 64bit modes?

[passmark]

On our 64bit test machines we don't have any problems running the 3D tests.

For some reason the video card / or its device driver is not supporting video hardware acceleration in 64bit. Try running dxdiag.exe to see if displays anything interesting.

[cpbencher]

Wow thanks!

OK so I have been to dxdiag before always go there after a new install and make sure all the dx features are enabled on all displays and hardware acceleration is fully enabled in display pannel. After reading your post i figured iv check that before but let me check every thing it has again. This time I noticed this button at the bottom: " Run 64-Bit DxDiag" clicked it, pulled up "dxdiag.exe /64Bit" and the Dx Features were diabled there but not in 32Bit version. Enabled them ran passmark 64Bit everyhting run now Yay. Thanks for the tip to dubble check dxdiag again.