Okay I appreciate it. Would you say the motherboard is the problem? It doesn't give any picture through DVI or VGA or HDMI? It doesn't beep. It doesn't light up any LEDs other than the power standby.
Do you have an other Power Supply Unit to test and see if it couldn't be the current Power supply issue....maybe borrow a friends Power Supply and see if it Works.
My other Suggestion is=you say you have 4x 8GB RAM sticks...
remove all RAM sticks out of your RAM slots and Insert only One RAM stick in a RAM slot.
Check and see if your System will boot only with one RAM stick...If it still doesn't boot or power up remove the current one RAM stick and insert an other stick and do the same process.
If all that hasn't worked
remove all RAM sticks and power on your computer with NO RAM!If you hear Continuously beeping noises it means Your Motherboard is still functional and there might be broken RAM sticks Or Broken RAM slots.The beeping noises are codes so it is really Important to listen to them.
Remember to keep your Graphics Card disconnected while you are trying to boot...Connect your Screen the the motherboard and see if you can go into BIOS.
Try this and I hope it helps