Should my fans go to 100% when the iTunes visualizer is on?

I have the newest base model MacBook Pro 13, and I noticed when I turn on the visualizer in iTunes the fans go to full speed and they become as loud as the speakers. Is this normal? I thought the new graphics card would be able to handle this without any problem.

Hello Javad Azadi,
I have experienced exactly the same problem as you with my new MacBook Pro 13".
I asked in another thread whether anybody else had experienced problems with the visualizer in iTunes https://discussions.apple.com/thread/2764570?start=420&tstart=0
I've noticed similar problems with my MacBook Pro 13" i7 (early 2011) when using Adobe Flash Player or iPhoto.
At the weekend, I was listening to music on iTunes (10.2.2) and I thought I would use the visualizer within the iTunes program. Unfortunately, after about 30 seconds, the fans kick in and it nearly drowns out the music.
As I write this using Safari, the temperature reading is 41c and the fans are at 1999rpm (courtesy of smcFanControl). iTunes is also open in the background and it is using 1.6% of the CPU (no music playing).
If I activate the visualizer in iTunes (with or without music playing) the temperature rises to above 81c, the fans are above 5462rpm and the CPU rises to above 12% (over 25% if music is playing). As soon as I stop the visualizer, the temperature and fans return to normal (the CPU hovers about 14% if music is playing).
My options are to use headphones to cancel out the fan noise or to avoid using the visualizer altogether.
Has anybody else experienced this with iTunes on their new MacBook Pro?
So unfortunately I cannot give you a definite reason as to why the fans make such a noise but please take some comfort from the fact that it isn't just your MacBook Pro
rastrus

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Should my fans go to 100% when the iTunes visualizer is on?

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