3956 Views 5 Replies Latest reply: Apr 4, 2010 11:29 PM by 4marcus
No (solid) solution, but a similar report:
My MBP shows the same behaviour from time to time (late 2008 15" MBP).
Initially I tried a SMC Reset and the temp went down to 40-45C. Yesterday, it happened again (while being connected to the LED Cinema Display with MBP Lid closed) and I tried login/logout, switch to the 9600GT and back, restart, with no effect. Finally I disconnected all USB devices and shutdown the machine. I started it up again in 'Laptop mode' (no usb/no monitor attached) and the temp is now back to normal. I will connect the monitor and a usb-hub later and report, if the temperature is influenced by that.
Just for the record: the CPU was almost completly idle at all time and despite that the temp raised to >50C without starting any apps (despite dashboard, which I used to check the temps and have a view on the cpu usage with iStat).
My current temp reported is 40C with firefox, ichat, tweetie and dashboard running.
To give an update to my previous post:
After putting MBP to sleep (closing lid, detach power) I connected it to a) power (from LED Display), b) Displayport and finally c) USB Hub - which made it wake up.
No I am running the MBP in closed-lid mode with LED Display and USB Devices attached since +20 minutes and CPU temperature is stable around 40C.
My macbook pro was running almost 80 degrees c, so I looked around and saw SMCfancontrol. It's easy to use and you can set preferences for the fans (like a certain rpm while on battery, charging or AC power)
I got mine from macupdate, a site which I've really begun to trust: