On a similar note, if running a CPU miner at 75% or more, how dangerous is extended usage? A simpler question would be: how long could I run at 100% before my processor bursts into flames?
And on the topic of XMG itself: how do we achieve our dream of landing on the moon? A space walk, perhaps? Maybe build ourselves an O'Neil cylinder?
There is no chance that the processor will ever burst into flames
With modern CPU thermal limiting, there is virtually no way to fry a CPU other than by dropping it into a frying pan with a little hot oil and seasoning.
The most important thing is to keep an eye on CPU temperature and to keep cooling fans and heatsinks free of dust to keep things running sweetly. This is certainly more important during hot weather.
The safe operating temperature for CPUs differs from model to model.
I am currently working on a CPU temperature limiter for XMG mining on Windows which works in conjunction with my Speed Controller. It is possible to limit the speed of the miner to keep the CPU temperature below a threshold level set by the user. I have this in Alpha testing at the moment. It uses SpeedFan for the temperature sensing.
As for landing on the Moon and building O'Neill Cylinders, that is somewhat beyond my abilities right now. Maybe next week eh?