HI, here's where I am at, my old PS was over heating and my screen was starting to get all fuzzy. So I turned off my PC and looked online what the symptoms might be, it was a over heating power supply.So i go and buy one at my computer shop. Installed it, after i had no video and my cpu fan and my PS shuts off after 3 seconds around. Was told by 90% of the people that it was the MOBO, so i bought a new one and still dose not work. same symptoms as before no video and no boot up that lasts longer that 3 seconds... going crazy over here please help!! ps x-supply cpu core 2 duo e5400 mobo asus p5kpl-cm ram one kingston ram and one buffalo thanks
cpu heatsink & fan assembly properly seated? try 1 ram stick at a time to see if 1 of them is causing problem. disconnect all cables to drives to see what happens. is the extra 4 pin power connector connected to the motherboard?