tangalin mo lahat ng accessories like ssd,hdd,video card(assuming na may on board graphic ka),mouse keyboard bago mo i test.kung dual or more ram gamit mo itry mo isa isa.try mo din bawat ram slots isa isa.mas ok kung may nakakabit na speaker or buzzer sa motherboard mo kasi mag beep kung may error.next is cmos reset.un plug mo from ac source yhen remove baterry.press mo power button para ma drain natitirang standby supply.pwede mo ding i short sandali battery terminals.or may reset terminals yan need mo lang din i short yung dalawang pins.pag ayaw pa din wala na advance troubleshooting na yan need mo na ng tools.