CPU fan not running

hi im josh in cebu phils. friend may i help you. i had encountered a lot of this problem.then i found out that it was a motherboard problem and a supply problem. all you have to do first is check the connections of your supply to the mainboard.check if two pwer cables are connected. 2nd remove the extra devices such as sound card or cd room to check weather your supply has enough powe to make you mainboard and hdd work. if still the same check your motherboard manuals for power rating needed and if the pwer suppluy passed and still not work.replace now your mainboard with the new one.because it is now the problem.good luck bro.hopei helped you.vote pls,so that i'll know if i helped you so.thnks