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Level 1

0 points

STICKY! THE Ultimate Self Cooling solution for MBP.(no accessory needed)

GOOD NEWS FOR ALL YOU MBP owners, finally we get a self cooling solution. No more heat, no more burns.

My MBP's regular temperature drops from 60+ Celcius to around 40C, and under 200% CPU Usage(with yes > /dev/null), it's still under 60C(before was about 80C).

Here we go:

http://www.mediamax.com/tom500/Hosted/smc-0.01.tar.bz2

This is a software controller for the SMC(System Management Control).
download this file, extract it, and execute the following command:
./smc -k F0Mn -w 2ee0
./smc -k F1Mn -w 2ee0

F0Mn means minimum fan speed for Fan 0, F1Mn for Fan 1. 2ee0 corresponds to 3000 in decimal. convert your target speed by(execute it in terminal):
python -c "print hex(3000 << 2)"

for example, to set to 6000(the maximum fan speed) for both fans:
# python -c "print hex(6000 << 2)"
0x5dc0
# sudo smc -k F0Mn -w 5dc0
# sudo smc -k F1Mn -w 5dc0

Enjoy !

P.S. put these commands at the end of your /etc/rc, so that it will be executed everytime on boot.

Macbook Pro

Posted on Oct 7, 2006 1:07 AM

446 replies

Mjdx88

Level 1

20 points

Oct 25, 2006 12:39 PM in response to nancygarden

I have deleted all the files but the fans still seem to be on, very quite tho but if i put my head to the left and write speakers i can here the hum of them, i forgot to mention i did use fanspeed for a while but deleted it.

Oct 25, 2006 1:11 PM in response to Mjdx88

Your fans are supposed to be on. With a cool machine, Apple default is 1000 rpm on the MBP and 1500 rpm on the MB .

If you think they are stuck at a higher rpm, get Hardware Monitor and check the speeds. You can get it here:

http://www.bresink.com/osx/HardwareMonitor.html

Hope this helps.

Oct 25, 2006 1:50 PM in response to Mjdx88

i would check in your activity monitor and system profiler to see if in fact you managed to delete all files, i found thta mine attache dit self in a few places. by looking in your startup files, activity monitor, and preferences, dumping both fanspeed ( which is the one that is causing the problem) and sleepwatcher. smcfancontrol does not but i would dump it and afetr everything is gone than if you so choose, i would use only smcfancontrol.

after deleting in those places EMPTY trash, then open your terminal and type the words exactly
killall FanControlDaemon

empty trash restart computer, and check in your activity mon, and sysytem profiler to confirm they are gone.

Yhbv24

Level 1

10 points

Oct 25, 2006 3:03 PM in response to nancygarden

Hello, I was wondering if this fan control stuff voids warranty, or causes any harm, because I really want to get it, but I just wanted to make sure it was safe/removable, etc. Has anyone had any lasting problems with it (I don't want to read every response in this thread for an answer haha)? Thanks a lot for the help!

Oct 25, 2006 5:17 PM in response to Yhbv24

If you are not willing to read the thread, I'm not willing to offer any help. If you have any questions after you read it I, or someone else, might be happy to answer them.

Oct 25, 2006 5:36 PM in response to Denny Granger

amen to that!!

Nov 29, 2006 6:04 PM in response to Claudius

Will this work with a MacBook?

MacBook 2.0GHz(white) Mac OS X (10.4.8)

BuckyBoy

Level 1

95 points

Feb 23, 2007 9:15 AM in response to Claudius

**CAUTION**

MacBook Pro Core 2 Duo owners:

The minimum fan speed for the MBP C2D is 2000rpm vs. 1000rpm on the MBP CD.

The other day I migrated the system on my MBP CD to a new MBP C2D during the intial boot/setup. Included in the migration was Fan Control 1.1, the one that resides in System Preferences/Other.

The "Base Speed" rpm setting in Fan Control was set to 1600rpm. This setting lowered the rpm on the C2D BELOW its minimum/default setting of 2000rpm.

Fortunately, no damage was done and I set the base speed on the C2D to 2000rpm.

BTW, the C2D does run cooler than its predecessor MBP CD. I'm not even sure if I'll keep Fan Control in System Preferences.

Also, the author should update this utility to differentiate between the two machines, as SMC Fan Control's author has.

Bucky

iMac G4 20-inch flat panel Mac OS X (10.4.8) MBP 15" 2.0gHz. Wife's 15" PB 1.67gHz. Wife's 5G 30GB iPod. 5G 60GB iPod.

Zentox

Level 1

0 points

Mar 7, 2007 7:53 PM in response to BuckyBoy

Unfortunately my MacBook Pro Core 2 Duo fans froze at 2000 rpms after uninstalling Fan Control 1.1. The automatic fan control does not work any longer. If anyone could provide assistance to this matter please post a reply. Thanks.

BuckyBoy

Level 1

95 points

Mar 8, 2007 5:52 AM in response to Zentox

Unfortunately my MacBook Pro Core 2 Duo fans froze at
2000 rpms after uninstalling Fan Control 1.1. The
automatic fan control does not work any longer. If
anyone could provide assistance to this matter please
post a reply. Thanks.

Right-click on the Fan Control 1.1 icon in System Preferences/Other. There will be an option to "Remove" it. Click on it and it should disappear.

Then, reboot your MBP and you should be alright.

If not:

- Repair permissions with Disk Utility
- Perform a Restart (reboot)
- Make sure you have the latest firmware update
- Run Apple Hardware Test from install discs

If the above is unsuccessful:

- Reset SMC
http://docs.info.apple.com/article.html?artnum=303319

If still no joy, I'd call AppleCare, keeping mum on the third-party FC 1.1. Probably unnecessary, but you may get a support agent who plays SH lawyer re terms & conditions, etc.
---------------------------------------------------------

I don't run FC 1.1 anymore.

Instead, I'm using the excellent smcFanControl 2.0 to just MONITOR my MBP temps and rpm. The program senses which CPU you have in your MBP and sets the lowest rpm to match Apple's default spec.

http://homepage.mac.com/holtmann/eidac/

You can increase the rpm, but I've found it unnecessary. The little display in the Menu Bar indicates that the fans are responding appropriately to rising temps in the two MBPs just using Apple's updated firmware settings.

Good luck.

Bucky

iMac G4 20-inch flat panel Mac OS X (10.4.8) MBP 15" 2.0gHz. Wife's 15" PB 1.67gHz. Wife's 5G 30GB iPod. 5G 60GB iPod.

Aug 19, 2007 3:20 PM in response to Claudius

I am wondering if there have been any improvements since March 2007 with Bucky's answer to the whole cooling discussion...any new software etc.??? I am using Fan Control and it seems to work flawlessly, but perhaps something else better has been developed???

STICKY! THE Ultimate Self Cooling solution for MBP.(no accessory needed)