Does Mac Pro support SLI in Bootcamp?

Discussion in 'Mac Pro' started by DubbleDuecer, Oct 24, 2008.

  1. DubbleDuecer macrumors member

    Joined:
    Jun 16, 2008
    #1
    Let me apologize ahead of time if this has been discussed, I did a search with no luck. I have a early 08 mac pro, Dual Quad Core, I didnt get the 8800 instead i ordered it with the 256 Vcard. I installed a 9600GT that I use under Windows Bootcamp, My question is, can I buy another 9600GT and use SLI under Windows?
     
  2. peskaa macrumors 68020

    peskaa

    Joined:
    Mar 13, 2008
    Location:
    London, UK
    #2
    No.


    Easy answer really. SLi requires the chipset to support it, and the Mac Pro doesn't.
     
  3. tobyg macrumors 6502a

    Joined:
    Aug 31, 2004
    #3
    It's been proven that SLI can work in a non nvidia chipset motherboard, but they've locked their drivers to require an SLI chipset on the motherboard. There were some older hacked nvidia drivers that would work with the 7300 GT that enabled SLI even on non SLI chipset motherboards, but nobody has released anything that would work with any recent cards.

    Maybe the newer Mac Pro's will use nvidia chipsets and allow SLI, but if they stick with the Xeon line of cpu's I don't see that happening. I'm not aware of any nvidia chipsets used in professional workstations with Xeon processors or servers.
     
  4. DubbleDuecer thread starter macrumors member

    Joined:
    Jun 16, 2008
    #4
    I have googled' it a few times and some people are claming they can run SLI or dual PC video cards under windows....??? I have my ATI card that came with my macpro that i only use in os x, i have a 9600gt that i use only for windows, Im wondering if adding another 9600 is possible.... some people are claming it is.. others say NO...
     
  5. Tallest Skil macrumors P6

    Tallest Skil

    Joined:
    Aug 13, 2006
    Location:
    1 Geostationary Tower Plaza
    #5
    Some people are liars.

    The hardware doesn't support it, period. It can't be done.
     
  6. noushy macrumors regular

    Joined:
    Aug 27, 2008
    Location:
    Detroit, MI
    #6
    But it should support crossfire

    As far as I know, crossfire should work. There have been some people gettin g the newer 48xx series card working with crossfire under bootcamp. The newest AMD/ATI cards have really good performance on par with some of the best nvdia cards. In fact with core architecture, they are even faster. Just waiting for AMD/ATI to release the 4XXX series for the mac.

    Peace,
    Noushy
     
  7. Shurran macrumors member

    Joined:
    Jan 10, 2008
    Location:
    Somerset, UK
    #7
    As people have already said, you won't be able to get SLI working in bootcamp on the current MP without special 'hacked' drivers, which I dont think exist for anything other than the 7300.

    As for the next gen. I guess its possible Apple will use something like the intel Skulltrail chipset which does support both SLI and CrossFire.
     
  8. JaredStrauss macrumors member

    Joined:
    Aug 16, 2007
    #8
  9. Umbongo macrumors 601

    Umbongo

    Joined:
    Sep 14, 2006
    Location:
    England
    #9
    5400XS is Skulltrail. Basically that note says that Skulltrail boards now support GTX 200 cards in SLI. They have an Nvidia chip on board to enable it.
     
  10. acquinn macrumors newbie

    acquinn

    Joined:
    Dec 16, 2007
    Location:
    Portland, OR
  11. noushy macrumors regular

    Joined:
    Aug 27, 2008
    Location:
    Detroit, MI
    #11
    skulltrail

    Intel bit the bullit when designing that motherboard, and used an nvidia bridge chip (100 series) which is pci-ex 1.0, to allow sli. It is the only intel manufactured board to feature sli capability because of that chip. The macpro mainboard does not have the nvidia bridge chip for sli.

    Peace,
    Noushy
     

Share This Page