We take great care to ensure that our systems run with reasonable temperatures as that helps extend their lifetimes. We've used various applications to control the fan speeds on different systems but, with the upgrade to 10.5, our Intel-based iMac was left without a fan-control solution that worked adequately. To that end, I decided to modify the open source (GPL) FanControl to work with our iMac. The result is that I've generated two new versions of Fan Control, one for the Intel-based iMacs and one for the MacBook/MacBook Pro . These versions also have some extended control capabilities over the original FanControl . The iMac version uses separate sensors to drive the contro... ...