Mac Steam Mouse Not Moving In Game Multicore Rendering

  

Possibly a stupid question, but thought I'd throw it out there.
I have an early 2009 Nehalem Mac Pro, 2 x 2.26 GHz Quad core, 16Gb Ram.
Recently I've been doing a lot of 3D work in Maxon Cinema 4D - still images that need to be rendered at high resolution with highest quality anti-aliasing, global illumination, everything cranked right up to max quality settings.
Cinema 4D is one of those rare apps (that I've seen) that maxes-out all of the processors when it's rendering - the CPU gauges in menu meters are all at slammed at 100% and the fans rev up more than usual. The Mac becomes slightly unresponsive and noisy during this time, so I usually render overnight.
I was just wondering if it was possible to burn my Mac out or reduce the life of its processors by thrashing it so hard? I make sure it has plenty of air and the room isn't too hot, but it really seems like it's getting a proper heavy workout during rendering.
I've considered sending my files to a render farm, but maybe I'm being paranoid.
Thanks for any advice.

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Mac Steam Mouse Not Moving In Game Multicore Rendering

Mac Steam Mouse Not Moving In Game Multicore Rendering Download

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