Computer won't boot up after I unplugged it to force it to turn off.

boblook

Prominent
May 1, 2017
17
0
510
Hey, so a week ago my computer's PSU overheated and stopped working. I used an older PSU for the meantime. Last night I got the replacement one shipped to me and plugged it back into the computer. The computer started to boot up but I saw no display on my monitor so I tried to force a shut down by holding the power button. I held it for almost 30 seconds but it would not shut down so I just unplugged it from the wall. When I tried to turn it back on I there was no response. No fans spun, hums, or beeps. The only thing that turned on was the LED on the motherboard. I put my old PSU back in again to see if the new one was DOA or something but it still didn't turn on. I don't know if the motherboard is broken now or maybe both of the PSU are fried but any help is appreciated.

Specs:
zotac NVidia GeForce gtx 980ti GPU
thermaltake tr2 600W PSU
intel core i7 CPU
Asus essentio cm6850 desktop