My pc not working please help?

Hi, yesterday I changed my PC SMPS to Corsair VS450, i didn't i have to use power cord of Corsair that in the box, i used a normal power cord and my all pc, motherboard and HDD was current so much. Now i used Corsair power cord and it's not given current and PC is turning on but no display, motherboard and cabinet ports not working, Can anyone help?