Theory Crafting: Multi GPU configs Work For Gaming in Any Kind of Senario

Ok so my theory goes as thusly:

If you have three monitors you game on, and you put three graphics cards in your computer. You can game with all three monitors and all three graphics cards at the same time.

How so?

1. DO NOT use SLI,CFX, or Eyefinity or Surround.
2. Leave everything at windows defaults.
3. Enter the config file or console of the game your playing and force a max resolution that supports all three monitors like 5760 x 1080.
4. Enter borderless windowed mode in the console/config file aswell.
5. Launch game, and you should be able to use all three GPUs and monitors together for gaming.

Am I right or wrong? Does this work?

The only downside would be that you need to have 1 monitor attached per GPU for this to work.
 
Solution
Each monitor does not separate work to each gpu. All gpu acceleration is done on the main gpu regardless of what gpus there are or what gpu the monitor is plugged into. The only exceptions are sli/cf which still depends on software support or only the main will be used, or software that can use multiple without sli/cf which is limited to renderers and compute software that I know of.

Your theory does work for spanning games across more monitors than eyefinity/surround supports, different screen positions like 3x2=6 on surround, with mixed resolutions, or with mixed gpus.
Each monitor does not separate work to each gpu. All gpu acceleration is done on the main gpu regardless of what gpus there are or what gpu the monitor is plugged into. The only exceptions are sli/cf which still depends on software support or only the main will be used, or software that can use multiple without sli/cf which is limited to renderers and compute software that I know of.

Your theory does work for spanning games across more monitors than eyefinity/surround supports, different screen positions like 3x2=6 on surround, with mixed resolutions, or with mixed gpus.
 
Solution