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pier

macrumors 6502a
Original poster
Feb 7, 2009
584
986
I have a macbook pro late 2007 2.2 core 2 duo. Just installes SL a few days ago.

My fan starts kicking in at 20% cpu load.... and it's hotter than usual. Before I could use a text editor (celtx) with the computer on my lap, but now I can't, it becomes too hot.

Hell, the fan starts kicking in watching a video on youtube...

More people are having this issue.

If you have please post in this thread so Apple notices it
http://discussions.apple.com/thread.jspa?messageID=10068996

People are recommending reseting the PRAM and the SMC. Haven't tried that.

Just noticed the 10.6.1 update... will try it to see if it helps.
 
I'm also very interested in this so if the pram and smc restart work for your and/or the 10.6.1 helps please keep us informed :)
 
I updated to 10.6.1 and also did the SMC reset.

So far it works great :)

reset smc and pram will fix it mate, try it first.

Yes sorry for the alarmism...
 
My Macbook Pro actualy come from average 60ºC to 47/50ºC when "iddle" with Snow Leopard

Model Identifier: MacBookPro5,3
 
same problem

I've got the same problem as described above. Macbook pro 15 and the fan speed is minimum 3000rpm, audible. Much faster since I installed SL. Tried the PRAM and SMC methods, didn't work. I hope Apple gets on this soon!
 
Same thing going on here. Same loads as under Leopard, the fans are in high gear. YouTube PARTICULARLY...
 
I find that when i upgraded my alum macbook, the fan is fine, but when i upgraded my wife's white macbook (core duo) her fan is always on as well...
 
My temps on my MBP are hovering around 42c and they seem to average between 45 - 55c depending on the task. I've not noticed any difference after the SL upgrade. Exactly the same for me
 
SMC and hot MacBook

The SMC reset did the trick for my Black MacBook early 2008, which started to run its fan for almost any task after installing SL.

Curiously though my Intel Powerbook (which can't take SL of course) has also started to run hot, so maybe something has been transferred between the two machines? Haven't tried to fix the PB the though.
 
snow leopard + macbook = hotter temperature and more fan noise

I know i am late to the party...but have this issue been fixed??:confused::confused:
 
My late 2007 black macbook/Leopard pretty much has always kicked up the fan speed (to around 6000 RPM+) whenever I watch any type of video including Youtube or any open web page with any kinda moving images...

I'm getting ready to upgrade the HD and do Snow Leopard clean install. I was hoping this would help with the fan noise etc but mahbe not...?

Why is Macbook fan noise so much more noticeable and annoying than others? Fan noise was never in my daily thought stream before I got a Macbook... but now it's my annoying cousin who follows me around everywhere.
 
The old Macbooks had pretty poor thermal design IMHO. Mine is the same, as soon as the CPU starts working hard the fans really kick in and the hairdryer effect starts. I don't think there's much you can do about it. The unibodies are miles better in this regard.

So there's nothing wrong with your Macbook, that's just the way it is. I don't think Snow Leopard will help.

You could try the Flash 10 beta, that uses a lot less CPU than Flash 9 (go to the Adobe site and search around, can't remember where it is). Or use a Flash blocker like ClickToFlash for Safari or FlashBlock for Firefox. They help a lot.
 
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