Hi, My problem is I recently turned off my computer and it will not boot up anymore. Yes, I have tried installing a new PSU. Ground cables are installed correctly, Hard drive is installed correctly, And CPU heatsink is not loose. My computer will turn on for 1 second, and just die on me. After it dies, It continues to attempt to turn on. Can anyone help? Is it a hardware problem i need to fix? Or is it a software problem?