The 1350w is pretty new, and thermaltake makes a decent PSU. I never drew more than 800w at the wall, so it's not like I was beating the hell out of it. It was running stable until I disconnected it, so I am stumped as to what could have gone awry while it was just sitting.
FYI, Thermaltake does not make
PSUs, not a single one. They contract the PSUs out to oem manufacturers. The Thunderbolt series is made by Sirfa. Your Toughpower was manufactured by CWT.
Do check the voltages with a multimeter and inspect all connectors visually to make sure no contact was damaged during the installation.
You didn't forget to plug in the 4-pin ATX/ 8-pin EPS connector, did you?