What happened

Hey all.  so i recently built my computer but when i boot it up the cpu and case fans spin then stop over and over and it keeps beeping is it the fans or is it the mother board???????



Can you specify beep code? what motherboard? 

Its a gigabyte p75-d3 (B75 chipset)  uefi bios its a continous shortbeep


is it beeping in regular sets?