Fan constantly on at 6000RPM all the time
I recently replaced the logic board on my Mac, now I have this fan constantly on at 6000RPM all the time issue.
So I did an Apple hardware test using the installation disk that came with my Mac and got this cryptic error:
After some googleing I came across this:
My question is, is the Th2H Right Fin Stack Proximity Temp the Right Thermal Sesor, or does someone know what part the Right Fin Stack Proximity Temp refers to?
Thanks in advance.
Make sure your computer's running cool — Currently out of stock.
download this app http://www.macupdate.com/info.php/id/230...
Then from the terminal, type in the second line (4000):
(that's the default 6200 RPM)
(That's 4000 RPM Max)
You obviously gain a few degrees C when limiting to 4000, but at least your MBA shuts up.
Had the exact same problem, was so glad i found this
Dries, I have a question for you...
I have an iMac 7,1 2.4GHz C2D running Snow Leopard. The fans run on full speed continuously. I have had it checked out and it is diagnosed as “fails CPU temperature diagnostics – always over temp” In other words, as soon as the computer starts up, the fan(fan sensor) thinks the CPU is HOT and runs the fan full speed. I tried your second line as above, but i get this message in terminal “command not found”.
Is there something else I should enter at the terminal command line for my iMac? I’m desperate for help. It’s either find a solution or trash the iMac!
Just used your tip, and my (almost) constant 6200 RPM turned into 4000. First relief in weeks. Thank you so much. 2 Questions though:
1. Is there a way to set the limit even lower (say, 3300) ?
2. How do I make the terminal command permanent than having to repeat the command after every start up?