FPGA fried?! Heatsink required?!

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These are the results of the quartus power estimator tool for my design.
Shouldn’t it be safe to draw up to 1W?

I noticed, in Settings->Operating Settings and Conditions->Temperature, the max temperature was set to 100°C not 85°C (for consumer grade device). Does that matter? Would it be possible to fry the chip, when messing up this setting?!

Thanks in advance,
Clemens