SLI two Mid range GPUs - Flicker and weird colors

Okay Fellas, I finally bought a new skylake setup last month and I had a gigabyte gtx 660 OC with me. fixed it and worked fine, and played some games. After that I also have another Axle gtx 660 which came back from the dead, which I removed from last mobo but later I discovered its the Mobos fault not Vga, it works well. another story there ;)

Okay so fixed Axle to 2nd pci e slot fixed the bridge and powered on, all worked well. It showed by nVidia control panel by a baloon tip saying that I can use SLI click here and I clicked, nothing happened so manually went to nVidia control Panel and clicked SLI, Sorround PhysX and enabled Maximize 3D performance and Apply.

After that, all okay, run few windowed benchmarks through MSI Kombuster all were okay. checked with gpuz and it also was ok.

So started my favorite game,  Call of Duty MW and crap! it looks like game is running in 8bit color and also had a awful green flicker!! 

SO I was pretty worried, thought may be my Seasonic g550 is not enough to power 2x660s, so sadly I disabled SLI, and used 2nd GPU only for physx and settled. Strange thing is it only happens when its full screen, windowed mode works pretty well, if its PSU, it should flick at that time too. But later I found out that SLI kicks in Only when its Full Screen.

Later I did some googling, to see whether its really because of power shortage, but for my surprise, few had similar reactions with SLI, (not terrible as I had but) flickers and color shades, who had monstrous PSUs.

and finally I found this post from www.overclock.net and tried it and Hola!

Ok after reading it I turned the game back on, adjusted the bridge while PC is on -(wearing a rubber glove, I didn't wanna get zapped, also didn't wanna short any signals goes in that wire between cards) -  and the flick patterns changed! but with too much of shakes the display went out completely, had to turn the PC force off. but glad that I was certain that its the SLI bridge, not the cards.

If you are wondering what is SLI bridge, its the cable which connects two GPUs externally, even-though both cards connected to the mobo

  

So I turned off the PC, removed bridge, cleaned the copper contacts in cards where the bridge connects, blown air in to the cable connector a bit to clean, and plugged it back, turned on and, Problem Fixed!! 

Special Thanks to gonX at overclock.net for the tip!