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Nvidia disables PhysX when ATI card is present
Alright then. You can get it right here... Instructions included in Readme file. I hope there is enough info for everyone to use it properly. Don't forget, it's only for Windows 7, as it's the only platform where you can configure your multi-GPU setup easily. I'd like to point out that the whole ...
AMD comments on NVIDIA dropping PhysX support when ATI hardware is present
AMD comments on NVIDIA dropping PhysX support when ATI hardware is present
icrontic.com — Could shenanigans be afoot with NVIDIA’s PhysX technology? Just days ago it was reported on Geeks3D that... those who use an ATI GPU for graphics while offloading physics to a PhysX-enabled NVIDIA GPU will no longer be able to use such a setup. ... (more) AMD comments on NVIDIA dropping PhysX support when ATI ...
Patch Re-enables PhysX When ATI Card is Present
ngohq.com — Physx is an open software standard any company can freely develop hardware or software that supports it.... Nvidia supports GPU accelerated Physx on NVIDIA GPUs while using NVIDIA GPUs for graphics. NVIDIA performs extensive Engineering, Development, ... (more) Patch Re-enables PhysX When ATI Card is Present
Nvidia Reportedly Limits PhysX Support to Nvidia-Only Graphics Sub-Systems
xbitlabs.com — Nvidia Disables PhysX for Systems Containing ATI Radeon in Addition to GeForce Graphics Adapter... (more) Nvidia Reportedly Limits PhysX Support to Nvidia-Only ...
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Working PhysX Patch for shared AMD and NVIDIA GFX configurations
TweakTown News RSS Feed — ... the purposes of PhysX processing under Windows 7 in conjunction with the latest drivers, a hack/patch has already become available which gets around this minor hurdle. The NGO HQ forum is offering up the unofficial patch in both x86 and x64 flavours here, this for use with NVIDIA's latest 191.03 driver. Whilst there's a couple of small tricks you need to be aware of in order to get it working correctly, it's been confirmed by several people in the forum thread that it does work. NEWS SOURCE

Patch restores PhysX for Radeon, GeForce tandems
The Tech Report: News — ... that purportedly removes the limitation. The patch applies to Windows 7 systems with multi-vendor graphics configurations only, and you can find download links for both 32-bit and 64-bit versions in this forum post . The installation packages also contain read-me files with troubleshooting tips alongside these installation instructions: 1. Install the needed GeForce driver package. Do not reboot when asked. 2. Use the mod (x86/x64) to patch all needed driver files. 3. Reboot. Seems straightforward enough, provided the patch really does what it's supposed to we haven't ...

Hacker breaks Nvidia protection - PhysX for everyone
DriverHeaven.net — ... of the PhysX system software also prevents physics processing cards from working if any other card apart from Nvidia is being used. Many people have been debating whether Nvidia are breaking some ethical conduct by forcing these rules on the end user. Fear ye not, because a guy going by the name of GenL on the NGO forums appears to have patched Nvidia's 'disable if ATI card is present' PhysX code. It is still a work in progress but you can try it for yourself over here ...

Enthusiasts Re-Enable Support of PhysX on Non-Nvidia Graphics Sub-Systems
X-bit labs — ... web-site reports that a forum member by the name of GenL has released an experimental beta patch which intercepts disable-PhysX-if-Radeon-is-present-code. So far, according to user comments the patch delivers successful results. At this stage, the patch only works for PhysX GPU acceleration and not PPU acceleration. Nevertheless, the developer claims that work is still in progress. Nvidia did not comment on the news-story. Tags: ...

PhysX Hacked To Work With AMD Primary GPU In Windows 7
AMDZone Frontpage — ... that someone has writted a utility to allow under Windows 7 for a Radeon to be the primary GPU, and the Nvidia cards can't handle PhysX functions. It does not however work with a PhysX PPU card. ...

Hackers Crack the Code to Allow Non-Nvidia GPUs to Run PhysX
Maximum PC — ... of PhysX also prevents physics processing unit (PPU) cards from working if it detects a non-Nvidia card in the system. That may have been the proverbial straw that broke the hacking community's back, and a hacker who goes by the handle GenL has put together some experimental code that stops Nvidia's drivers from shutting everything down when it detects a Radeon card. We haven't tried it ourselves, but if you're feeling adventurous, rebellious, or both, you can grab the code here.

Related: amd/physx patch, multi-gpu physx
Nvidia disables hardware PhysX for GeForce, Radeon tandems
techreport.com 10/2/2009 — Hoping to grab a new Radeon HD 5850 and use an old GeForce to accelerate PhysX effects in games? Too bad; newer Nvidia drivers won't let you use hardware PhysX acceleration unless you're using a GeForce for graphics, too. A member of the NGOHQ forums ...
Patch restores PhysX to NVIDIA GPUs when ATI card presentIcrontic
A modder has released a patch which restores PhysX support to NVIDIA GPUs operating in a system with an ATI card. Over the last few weeks, it has come to light that NVIDIA GPUs completely disable PhysX if an ATI card is also detected in the system. It’s a matter of R&D cost, says ...
Patch Makes Nvidia Play Nice With ATITom's hardware UK
Hacked patch saved the day for multi-GPU PhysX fans.