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xnolmt

macrumors newbie
Original poster
I just bought the new MBP 08 and have been using it pretty heavily while laying in the bed. I was wondering are there any issues with heat from doing so. I notice my notebook heating up from time to time. Is this normal?
 
The uneven surfaces of the bed equates to less heat the unit is able to dissipate. It's best to use it on a hard flat surface. The cooler you can keep the thing, the better
 
Apple actually recommends some space under the body for adequate cooling. Now if that means the rubber knobs on a flat surface, I'm unsure. I always elevate the rear of mine about an inch or more to ensure air flow underneath.
 
Get yourself an iLap or something similar. It provides a very stable surface that doesn't block the cooling vents while also allowing for proper airflow under the computer.
 
Strangely enough, using mine with it sitting on my bed doesn't seem to affect temperatures. I really don't know why, but it doesn't. The best explanation I can think of is that the MBP's heatsink is mostly passive (through the case, not the vent), and the fans are simply an extra little push to help get the job done when the load is high.
 
Your not meant to use it in bed so it will get slightly hotter but they are designed to cope with it. If it doesn't get extremely hot it will shut down before anything is damaged so don't worry about it.
 
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