Macbook Pro Fans Stuck At 6000 RPM

Apr 25, 2012

I am using a 2006 MacBook Pro, 2GB RAM, 2 GHz Intel Core Duo with a 500GB HDD that has 450 GB free.About a month ago the left and right fan started cranking up to 6000 RPM (which is apparently max for this model) upon startup. Most discussions I've read while looking for a solution suggest resetting the SMC, which I have tried a few times to no avail. CPU and RAM usage are normal, nothing taking up tons of processing power on activity monitor and temps are around 35-40 degrees Celsius. I saw a few boards talk about a stuck print job which I checked for as well, but there was nothing. I tried downloading and using the smcFan Control app and setting the preferred fan speed to as low as possible but the app still registers speed at 6000 RPM and they have not slowed down. Unfortunately, I bought this MBP from a used dealer (had it for a few months before this started), so I do not have the original OS disks to perform a hardware diagnostic. It came with 10.5 on it but I have since upgraded to 10.6.8 

I'm not experiencing any problems with operation but the fans at this speed are extremely loud and annoying; is there anything further I can do to try to fix this? I'm a bit new to macs, is there a program that gives you more powerful fan control than the one I downloaded? How much would something like this cost to get fixed by Apple?

Info:
MacBook Pro, Mac OS X (10.6.8), 2 GHz Intel Core Duo, 2 GB RAM

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A few days ago my MBP started spinning up the fans like I was doing something really intensive. Only I wasn't.  I installed smcfancontrol and it reported both fans at close to 6000rpm (5899 is the highest I've seen it) and a cpu temp of 75 c - 85 c while idle.  iStat Pro reported the same. No apps running after a reboot and the fans instantly spin up and the cpu temp hovers around the 80 mark.  I'm of the understanding that 50 - 70 is considered normal with the fans in the 2000-3000 rpm range. Yes? Heres a screen cap with only Activity Monitor running. You can see the most intensive process is 3.5% and the temp and fan speed can be seen in the upper right.[URL]

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