So bought a BLOD PS4 pro, HDMI port looks fine, power supply is also fine because stays on blinking blue, screen flickers at each power on. It's not hard drive because I removed it and still same and no safe mode. Turns on, 15 seconds later of holding you can hear turns off, blinks a few more times and off. I removed the mother board looking at the connections all seemed fine, except I didn't remove the "ball jointed cpu" but it gets hot along with the "ram". Anything I'm missing?