PhysX on Crossfire Mobo???

Discussion in 'Videocards - NVIDIA GeForce' started by Aznthug186, Feb 5, 2009.

  1. Aznthug186

    Aznthug186 Member Guru

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    Hey guys I just received my 295 GTX, and Im wondering if I can get another Nvidia card just for the Physx on my Crossfire mobo? Or I need to buy a SLI mobo to work?
     
  2. LedHed

    LedHed Banned

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    You can not run two NVIDIA cards on a Crossfire board; I am also running the 295 on a CF board, but you are limited to one. However you don't need two 295's (or an additional NVIDIA card) to run PhysX, one 295 can easily handle running any game + PhysX. These cards actually shine most when you max out everything possible @1920x1200+
     
  3. buddyfriendo

    buddyfriendo Ancient Guru

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    Should work fine, worked for me on my previous Nvidia card and my old mobo was CrossfireX.
     
  4. Denial

    Denial Ancient Guru

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    I don't see why you couldn't? I tried my one my 8800GTX's with my 4870x2 in my rampage and I could set it up as a PhysX card.
     

  5. LedHed

    LedHed Banned

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    You are able to run one of each, but he is talking about running two NVIDIA cards together which would be SLI. That isn't possible on a Crossfire board, unless that is different just running for PhysX, but it seems like it would be SLI.

    I could be wrong, but that is what I've read/seen.
     
  6. buddyfriendo

    buddyfriendo Ancient Guru

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    He wants to run a 2nd Nvidia card strictly for PhysX, which will work. He was asking if he'd need an SLI motherboard, not run the cards in SLI.
     
  7. Nato.dbnz

    Nato.dbnz Ancient Guru

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    You can definitely run 1 nvidia gpu for graphics and one for physx on a crossfire motherboard.
     
  8. subxero

    subxero Member Guru

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    I read something about there being a way to do it, since the second card is picked up as physx only. Here's a thread about it, maybe you can check with one of the to see if they got it to work.

    http://forums.guru3d.com/showthread.php?t=285424


    I thought about looking into this, but after getting my 295 yesterday and playing Mirror's Edge (1920x 1200 and 4xAA) and a few other things I really didn't see the need for it.

    The only issue I've had was getting a BSOD after playing for about and hour. I was using 181.20 and installed the 185.20 betas and then the physx drivers over the old ones. I have not had any issues since.
     
  9. Anarion

    Anarion Ancient Guru

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    Running PhysX has nothing to do with SLI, so yeah he can get another card for PhysX and it will and should work.
     
  10. Aznthug186

    Aznthug186 Member Guru

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    Thanks for the info it really helps alot, I got my old 8800 Ultra out of my dust box and slot it in and enable 2nd GPU as a active Physx. It actually runs real good in Mirrors edge is like 12 fps increase better than nothing. I thought my 8800 Ultra is gonna be sitting in the dark box, now another Nvidia Card being useful.


    My friend is now asking . .

    He have 7 series Nvidia card will it work with Physx and currently he is using 285 GTX. He wondering if it will work the same way like I go for my 295 GTX and 8800Ultra ???
     

  11. Deadman93723

    Deadman93723 Ancient Guru

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    A 7 series card will not work, it has to be 8 series or higher.
     
  12. LedHed

    LedHed Banned

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    Still makes no sense to run an 8800 Ultra in the case with a GTX 295 (can you say power usage?) considering how much available power the 295 has. It can easily run all eye candy @ highest res + PhysX and never hiccup once. I mean you basically have SLI GTX 285's slightly dialed down, would you add a third card if you had 2x 285's?

    Think about the additional heat output you are getting from that huge G80, not to mention a lot of Ultras broke records for heat output. None of it is worth it in my opinion, especially when you have a world class beast like the 295 in your case. There is nothing the card can't handle.
     

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