Try downloading the SMC update and 10.8.3. Then do an SMC reset. Then go to activity moniter,CPU, all processes to see if anything is using up a lot of your CPU. Dropbox, for example,uses a lot of the CPU which heats up the computer. Turn on automatic graphics switching if it is not already.
It does not on my computer, does it do that on yours?
Anyway, OP:
Open Activity Monitor and select All Processes and then sort by CPU to show you the process(es) slowing down your Mac or speeding up your fan(s) or causing more heat.
It does not on my computer, does it do that on yours?
Anyway, OP:
Open Activity Monitor and select All Processes and then sort by CPU to show you the process(es) slowing down your Mac or speeding up your fan(s) or causing more heat.