Hi again,
Just to follow up on this subject - I have done more testing & confirmed that no-one on Planet Earth currently (or at any time in past history) has been able to run an NVIDIA Geforce 6200 series video card with DirectX 9.0c on a K6-2 CPU PC. Apparent reason is lack of proper 3DNow & MMX support in NVIDIA 70 & 80 series drivers [ specifically in NV4_DISP.DLL ] (& presumably any later driver series, eg, 90 series gives same problem).
Tested [ 256MB & 512MB EVGA Geforce 6200 PCI cards ] in a [ 850MHz PIII / 512 MB RAM ] PC - worked perfectly with full DX & OGL support, using NVIDIA 70, 80 & 90 series drivers. Using multi-boot, W98, W2k, Wxp - worked flawlessly on all.
Also tested a generic [ 512MB non-EVGA Geforce 6200 PCI card ] in the same PIII rig - worked perfectly with full DX & OGL support, using NVIDIA 70, 80 & 90 series drivers. Ditto multi-boot, W98, W2k, Wxp.
BUT with BOTH 6200's (EVGA & non-EVGA) in a [ 500MHz K6-3+ / 512 MB RAM ] PC - using NVIDIA 70, 80 & 90 series drivers, using multiboot W98, W2k & Wxp - basically nothing DirectX works, eg:
* on 70 series, OGL works, but Dx7/8/9 give BSOD.
* on 80 series, OGL crashes, Dx7 works, & Dx8/9 gives BSOD.
* on 90 series, OGL crashes, & Dx7/8/9 gives BSOD.
So IMO it's conclusive - NVIDIA dispensed with proper 3DNow & MMX support for DirectX 8/9 in 6200 cards with their 70 & later series drivers.
Just thought you'd like to know.
Thanks again to those who offered their thoughts.
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