it worked just fine 2 years ago now it does not I used the paper clip method to check the PSU and it spun up and turned on but when the PSU is plugged into the motherboard it will have a green light on the motherboard and when you press the power button on the tower it does not turn on everything is plugged in right and it is a custom built pc with a xion soloris case and a P4G8X motherboard