PSU buzz, nothing

[NCC10281982B]

This evening my main rig was throwing blue screens and running hot (fah), (nvidia driver I think), being unresponsive. I dismantled everying in order to check if I forgot to plug a fan in or something during the original build.

 

The next time I tried to power up I got a short buzz from the PSU then nothing.

 

I am assuming I killed it. Running two video cards off a rosewell 750 watt was probably not smart. ???? unsure if I want to hassle with RMA.

 

Any recommendations for a replacement? Specs in Sig.