Failure after inserting graphic card, i5, ASUS P8Z68 ...

I have i5 2500k i ASUS P8Z68-V PRO/GEN3. I've tried to insert graphic card Gainward Phantom 560ti ... Everything was working well before that.
When I did it I got the following scenario:

Coolers start to work, CPU_LED works for one moment and stops, DIMM_LED is working constantly. After 5-6 seconds CPU_LED blinks and computer shuts down and right after turns on it self. CPU_LED works for a second than stops and, ater that nothing happens. Screen is black, coolers are working, DIMM_LED working, ....

When I pulled out the graphic card and make everything the same as was before, I got the IDENTICAL scenario.

Could someone help me?

P.S. Sorry about my English.