No Display and USB after installing a new motherboard and CPU

cpui5

Reputable
Feb 16, 2014
55
0
4,630
Hii.
I thought of making a new computer by myself so i bought a MSI mobo and Intel i5 CPU. I assembled my computer and connected the vga cable and other usb cable and when i start my computer then my monitor , mouse and keyboard are not detected by the computer. Please help me.
My specs are
Motherboard: Msi z87-g43(1150 socket)
CPU: Intel i5 4570