Hi, sorry I posted in an old thread without realising and so I thought just in case I'd post it separately as well in case no one was reading the old thread. Here are the facts iStat is giving me: There is a fairly audible noise level from the fans still, and I'm thinking the first two numbers aren't normal. SMC was added instantly via Time Machine but have removed it and still no slowing down or quietening of the fans. Can anyone verify if this is normal speeds? I've had my iMac [27" i7 12GB RAM] for 24 hours roughly. EDIT: Forgot to mention, when in Bootcamp on Window 7 [or in the Lion's recovery partition] there are no fan issues at all. Silent. Tried reinstalling Lion back to 10.7 off my bootable disc, but still no change.