It definitely wasn't an overheat. I play with metrics and the cpu/gpu were in the high 60s/low 70s when this happened. I've also got a rock solid power supply, 500w 80+ platinum.
Like I said, no fan spin whatsoever, lights turn on, but I can't use the power button to force a turn off anymore, I have to shut off the psu.
Is she cooked?
I was interested in these back when they were using the NH-38, but I held off for a while. The bug got me eventually, though. I was curious to see how well tuned the movement was going to be, and I'm very pleased to see it running at -2 seconds per day. The 4hz sweep is also quite nice, equally as nice as my Henry Archer Vesterhav 38 with a Miyota 9039, but this surprisingly keeps far more accurate time. My Vesterhav can easily get a minute out of time in a week and a half. By comparison, this would take about a month. We'll see if it stays that accurate. Fit, finish and everything is amazing for a $245 watch out the door. The clasp is a little rattly but that's just about the worst complaint I can muster. Really well made little thing.