Did I brick my pc?

Hi guys, I was in the middle of building my brand new pc. I plugged in the ram, SSD, CPU GPU, CPU Cooler, all plugged to the motherboard. I plugged the 24 pin connector to the PSU, and the CPU to the PSU. Powered on the PSU, I test ran the system for a bit with a monitor but nothing showed up. After a minute, bang. The PSU blew out a little smoke and I plugged off the psu from the power socket. What are the chances I just lost 3k usd? Also what should I do next? How can I check whether all my components are still alive?