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Crossfire 5750s and hybrid 8800gt Physx?

Im planning on buying a 8800gt to hybrid physx. Would there be a bottleneck or anything wrong with it if i add it to my system?

System Specs:
Asus P5Q PRO TURBO
Intel Core 2 Quad Q9505 @ 2.83Ghz
4gb Corsair RAM
Two Asus 5750 Crossfire
Windows 7 Pro
15 answers Last reply Best Answer
More about crossfire 5750s hybrid 8800gt physx
  1. how are you going to hybrid physx ?

    why not sell the 2 5750's and buy a decent single nvidia card that will also handle physx ?
  2. You can definitely do it if you have the 2 cards already and the motherboard slot for the 8800GT.

    What power supply do you have? You are going to want to look around for the 1.05ff Physx mod and use the 285.62 driver set for the card. Its pretty easy to do.

    What games do you play that use Physx?
  3. Well i have a 500w :( And im planning on using this physx mod for Mafia 2, Boderlands 2, Mirror's Edge (I think it supports it)... and more. I do want to upgrade my Power supply but this might be a while away but it would be a http://www.tweaknews.net/reviews/kingwin_mach_1_1000_watt_power_supply/. Also would this harm any components in my computer? If i did anything wrong? Can i also use a a PSU cable that is two 4-pin molex making it 6-pin PCIE http://www.msy.com.au/pimages/cable/4pinto6pin.jpg
  4. Best answer
    I would recommend this power supply instead:

    http://www.newegg.com/Product/Product.aspx?Item=N82E16817371051

    Now, I am aware you are in another country, but I am just using examples:

    http://www.newegg.com/Product/Product.aspx?Item=N82E16817139021

    http://www.newegg.com/Product/Product.aspx?Item=N82E16817139022
    (^awesome)

    You don't need 1000W quite yet, your 5750's dont use too much power. I would upgrade your power supply before doing the Hybrid Physx though.

    I just looked up your board, and if this is it:



    You aren't going to be able to do it. If you wanted to do so, you would have to use a single card and then the 8800GT, as you only have 2 PCI-E slots.
  5. Iv'e looked around the internet and some people have said that they use their 8800gt in a PCI-E x1 slot, but at the cost of slower performance, and only to use the card as a physx card. I'm a little stuck because i want to use both my 5750s not one of them :/
  6. I don't know how it would work in the x1 if it would work. I might recommend just selling the 5750's if you want Physx that bad. Then get a single card.
  7. Nope i don't really want it that bad im just looking for a little boost in my games... I'm probably going to look into a new motherboard, CPU, RAM and PSU anyway. Thanks for Your help... Much appreciated!
  8. Physx merely just adds effects, doesnt really boost anything.
  9. apparently you missed my first reply.................. DUH!
  10. Apparently I did though. If you do end up doing the Physx mod with an ATi card, I've done it. So if you need help I might be able to help you. There's also a member on the forums who's really good at Nvidia if you have problems.
  11. swifty_morgan said:
    apparently you missed my first reply.................. DUH!


    Yeah... But i don't really have the time to put up my 5750s on the market and wait 2 weeks or somthing like that and then buy a new card. And if i had the money already im pretty sure i wouldn't have made this thread.
  12. That is quite true.
  13. Best answer selected by DigitalVenom.
  14. I'm looking to add a gt 610 to my already crossfired 6770's
    this is to increase FPS in Planetside 2 and a few other games that use PhysX
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