crwdns2934241:0crwdne2934241:0 mayer

crwdns2934249:0crwdne2934249:0:

I suspect that one of your fans has failed.  Download and run smc fan control and see what it tells you:  http://download.cnet.com/smcFanControl/3000-18487_4-102230.html

crwdns2915684:0crwdne2915684:0:

open