Please help in my problem

Can we have some specs? Some ATX Main boards do that....(at first boot it is normal)
What you got Giga-Byte? You face the issue at first boot, or all the time? I had few Main-boards that started like yours just before they started to resets in loop....any way try to unplug all you can....reset bios...and check if the issue remains. If you can test with different PSU VGA and ram as well. PSU/MB 50/50 i say

intel e8400 @4.07ghz w/cm hyper212+ stable with prime for 7 hours
gigabyte ep-45 ud3r f12 bios
4gb ram kingston hyperx
powercolor hd5850 pcs+
650 watt coolermaster extreme power

note:this problem happen at the first boot only
it does,not matter if it,s at overclocked state or not at both this problem happen