iMac 27" runs VERY hot - too hot to touch.
My fairly new 27" iMac is running very hot - just sitting here with Chrome and iTunes open the GPU diode is 194 Degrees F - the top of the iMac is too hot to leave my hand on for more than a few seconds - here is the entire temerature readout.
HD: 124 Degrees
CPU :110 Degrees
Ambient: 72 Degrees
GPU Diode: 194 Degrees
GPU Heat Sink: 166 Degrees
Mem Controller: 126 Degrees
Optical Drive 124 Degrees
Power Supply: 139 Degrees
It doesn't run much cooler idle either - which is why I've been scared to leave it running when I'm not around.
The iMac this replaced never ran anywhere near this hot - should I be concerned? When I play Minecraft the GPU dioed gets in the 210 range - and that really concerns me. I have never heard any sort of fan come on.
iMac, Mac OS X (10.7), 27" 3.5 GHz Core i7