sgtpain wrote:I have been running a generic 3 screen with switching set-up for some time & have been running my 3 screens in crossfire mode, after some reading in the forums I now know that crossfire doesn't work with windowed games.
Good, that's the first bit out of the way already
sgtpain wrote:
I have found I get better result with my cards running in independent mode when switching isn't used but using this method isn't ideal.
Since I want to run 3 screens with the main client overlap onto screen 1&3 like a mini surround set-up with 6 client each side should i use crossfire, & would an eyefinity setup help with performance.
also eve has the option to run in window, fixed & full screen will this impact performance also.
Seeing as you already know that crossfire wont work in Windowed mode, I don't understand why you're asking if you can then use it? If you are going to run the games in Windowed mode, which ISBoxer/Innerspace will force, because that's how it works, then CROSSFIRE WONT WORK, and you've effectively got a GPU doing nothing (although it's limitations may still be in play).
Sadly because of the way that CrossFire and SLI work, Crossfire will be limiting you to only 3GB of vRAM (per GPU) across both cards. This is because both cards will have the same textures and other info in memory (the vRAM hold mirror copies of data), so because you have 1 card with 3GB and one with 6GB the lowest amount wins, and the 6GB card has 3GB never used.
As for Eyefinity, it might help you with setting up your surround configuration. In fact you can't run a Window Layout region across multiple independent monitors - the mouse positioning gets all weird so it will probably be necessary. The danger of this of course is that your reset region will be bigger and thus each game instance will need more vRAM, unless you are not using instant swapping and so the regions are sizing each game individually, which leads on to number 3.
sgtpain wrote:Last question when doing custom resolutions is there some method to ensure they are scaled correctly as mouse broad casting works fine as i have done the aspect ratios correctly but the game resolution looks off, It must the matter of having the client window a particular size/ resolution & wanted to know if there is a correct method as I have been just dividing the screen rez into 10ths & doing calculations based upon how many parts of the screen im using. does that make sense as its hard to explain.
As long as you are using instant swapping and the reset region is sizing the game, and the in game setting is "Windowed Fullscreen" setting, then the the aspect/sizing should look normal if you have the regions correct.
You do get the odd game which will work better with a different in game setting. I think EVE needs to be set to Fullscreen despite the fact it is running in a window (fixes weird positioning issues - there are some posts in the forums about it). LOTRO and STO work well with a custom resolution.