I have a 13 inch MacBook Pro retina (bought new in 2013).
When running normally (which is usually online downloading and editing in Eclipse - nothing too heavy, often 90%+ processor idle) it runs fairly warm. To the touch it's hot in the top-left above the keyboard (where everything plugs in) and iStat gives the CPU temperature as between 50-70 degrees C (CPU Die, CPU proximity usually 2-3 degrees less).
I see from various searches this seems pretty normal for MBP and shouldn't in itself damage anything.
My question though is about the fans - they're always just plugging along around 2000 rpm.
If, using iStat, I set them to use a profile with say minimum 4-5000 rpm then, naturally, everything cools right down. With the default profile I get the temperatures above.
So, is this right? Presumably when I say 'default' it's using Apple's determination for fan speeds. But is it normal for it to get to 70-degrees or thereabouts without the fans automatically speeding up?
And as a supplementary question assuming it is working correctly in not speeding up for those temperatures; is it a good idea to perhaps use iStat to have the fans speed up when charging/plugged in (when it gets the heaviest use via Thunderbolt connectors)? Other than battery life being less my guess would be running everything cooler would give a longer life to components?
Many thanks in advance for reading my long and meandering question!