Weird..but positive SLI results


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Hi All,

 

Heres a weird one. Yesterday I received my second gfx card (gainward 770gtx 4gb) so I am now running in SLI.

 

I had done a bit of research prior to this as I also have three monitors(not setup as spanning) and I had read that to run SLI with three monitors you either have to:

  1. DIsable left and right screens, or well 2 out of 3 if you want to game with SLI enabled on a single screen
  2. Or setup spanning so all three screens count as 1 in Nvidia control panel and then enable SLI

As if you have all three screens setup, without spanning you wont be able to enable SLI which seemed fair enough. The above points were fine for me, as I play a few games over three screens, and then for the single screen games I play them via my projector so didn't mind disabling the other two screens.

 

Here is where it gets weird, results first(firestrike via futuremark test): *All three screens are connected to the top card*

  • Single GPU - all three screens enabled, not spanned and the bench running single screen - fire strike 5451
  • SLI - 2 out of three screens disabled, SLI enabled, bench running on remaining screen with GPU2(bottom) as priority - fire strike 8915
  • SLI - all three screens enabled, SLI enabled, bench running on middle screen with GPU1(top) as priority - fire strike 9003

So based on the above, it is clearly possible to have a single screen game running, with SLI enabled, as well as having your other two screens for programs to monitor temps etc!

 

Have any of you been able to replicate the above? As I literally couldn't find anywhere that said the above was possible with SLI.

 

Thanks

CG-88

 

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Here is where it gets weird, results first(firestrike via futuremark test): *All three screens are connected to the top card*

  • Single GPU - all three screens enabled, not spanned and the bench running single screen - fire strike 5451
  • SLI - 2 out of three screens disabled, SLI enabled, bench running on remaining screen with GPU2(bottom) as priority - fire strike 8915
  • SLI - all three screens enabled, SLI enabled, bench running on middle screen with GPU1(top) as priority - fire strike 9003

So based on the above, it is clearly possible to have a single screen game running, with SLI enabled, as well as having your other two screens for programs to monitor temps etc!

 

Have any of you been able to replicate the above? As I literally couldn't find anywhere that said the above was possible with SLI.

At some point in the GeForce range and drivers and if you was running vista or better it became possible.

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its awesome though that it does work! Makes life a lot easier especially when running Windows 8.

 

I cant stand screen spanning as the modern UI screen takes up all three screens. lol!

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