ive taco'd a few, toasted a few, hell im toasty right now!
in all seriousness though ive been able to push 4 titans on one board up to 250-270 range and keep it stable,
it took a lot of firmware hacking and liquid cooling, but it's totally possible!
And if people blow them up I can fix them :-) But really might be a better investment (not for me of course) to run them a bit cooler since these actually seem to have value over time. Which is kind of amazing.