++Crispy++ for as long as your computer works appropriately, leave well enough alone ;-). you can always monitor the temperature with software like HW Monitor and Core Temp. At high load, temperature should be hovering between 83°and 90° with the fan running at low revolutions (a good fan will be barely audible). For a manual/custom fan control check [http://forum.notebookreview.com/threads/dellfancmd-%E2%80%93-tool-to-enable-manual-custom-control-of-the-laptop-fans.827106/|on here] It’s part of the Dell Power Manager.